Answer:
Shannon rounded $57.25 to $60 and 28 pounds to 20 before dividing
Step-by-step explanation:
When she rounded $57.25 to $60 and 28 pounds to 20, the result she got was 60/20=$3. The issue was this is that she rounded up for the dividend and rounded down the divisor, leading to a much bigger estimate than the real answer. Hope this helps!
The error she did was Shannon rounded $57.25 to $60 and 28 pounds to 20 before dividing , Option B is the answer.
What is meaning of Error ?Error is the calculation mistake done while doing mathematical operations.
It is given that
Shannon paid $57.25 for 28 pounds of potatoes.
She paid $57.25 /28 = $ 2.045 for 1 pound of potato
She estimated the cost per pound to be $3.00
which means $0.955 more than the actual cost
The error she did was Shannon rounded $57.25 to $60 and 28 pounds to 20 before dividing.
$60/20 = $3
Therefore Option B is the answer.
To know more about Error
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Brooke, Baiden, and Ibraham scored goals for the soccer team in the ratio of 1:3:4. If together they scored 32 goals, how many did Baiden? Question 25 options: show work
Answer:
12
Step-by-step explanation:
1+3+4=8
32÷8=4
4x3=12
Answer: 12 goals
Step-by-step explanation:
Baiden = 3/8 x 32
= 12 goals
Can someone please help
Answer:
D
Step-by-step explanation:
I would say D because when a car is going from a slower road to a faster, more busy one (the highway) it has to increase its speed. But once it has increased its speed to match with the other cars, it will stay at the same pace.
35,000,000 in scientific notation
Answer:
3.5 times 10^7
Step-by-step explanation:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
3.5×10^7
Hope this helps :P
Answer:
3.5 × 10^7
Step-by-step explanation:
Put the decimal point after 3.
Count how many decimal places will be needed to move to the right.
10 million has 7 zeros.
Can you please help me! What is m∠A?
I NEED THE WORKING....
1/3 of 90°
Answer:
30°
Step-by-step explanation:
1/3 × 90
Multiply.
90/3
Divide.
= 30
Answer:
30°
Step-by-step explanation:
Taking a third of 90° is like sharing 90 apples amongst three people.
In effect everyone would have,
[tex] \frac{1}{3} * 90 apples \\ \\ \frac{90}{3}apples \\ \\ 30 apples [/tex]
In the angular world, this problem could be likened to a trisection of 90°, giving you 30°.
Hope it helps!
Find the square of
x^2+8^x+1
(please show work)
Answer:
x^2 + 2^3x + 1
Step-by-step explanation:
In order to factor an integer, we need to repeatedly divide it by the ascending sequence of primes (2, 3, 5...).
The number of times that each prime divides the original integer becomes its exponent in the final result.
In our example,
Prime number 2 to the power of 3 equals 8 .
Evaluate (2 - 5i)(p + q)i when p = 2 and q = 5i
a. 29i
b. 291-20
C.-21i
d.29
Answer:
A. 29i
Step-by-step explanation:
Step 1: Plug in given variables
(2 - 5i)(2 + 5i)i
Step 2: Difference of squares (expand)
(4 - 25i²)i
Step 3: Imaginary numbers rules
(4 - 25(-1))i
Step 4: Combine like terms
(4 + 25)i
(29)i
Your final answer will be 29i
Answer: a29i
Step-by-step explanation:
trust and beliveeeee meee
Find P(Not a 3)????????????
Answer:
0.85Option B is the right option.
Solution,
P(3)=0.15
P(Not a 3)=1-P(3)
=1-0.15
=0.85
Hope this helps...
Good luck on your assignment
Answer:
I think it's c im not to sure
Step-by-step explanation:
Determine the value of x in the triangle shown. answers: 48° 42° 228° 132°
Answer:132
Step-by-step explanation:
Answer:
132°
Step-by-step explanation:
first find the interior angle of the triangle.
the interior angle of a triangle is 180°
90°+42°+y°=180°
132°+y°=180°
y°=180°-132°
y°=48°
(y° represents the empty part).
angle on a straight line is equal to 180°
y°+x°=180°
48°+x°=180°
x°=180°-48°
x°=132°
a) Mr.Wilson bought a mountain bike for Rs 7,600 and sold it at 10% profit. If he had bought it for Rs 8,000, what would be his profit or loss percent?
Answer:
[tex]5\%[/tex] loss.
Step-by-step explanation:
[tex]7600 \times (1+10\%)[/tex]
[tex]7600 \times 1.1=8360[/tex]
[tex]8000 \times (1+10\%)[/tex]
[tex]8000 \times 1.1=8800[/tex]
His loss is Rs 440.
[tex]\frac{440 \times 100}{8800}[/tex]
[tex]=5[/tex]
Answer:
Profit %age = 4.5 %
Step-by-step explanation:
Mr. Wilson bought the bike for = Rs 7,600
Profit %age = 10% of 7,600
Profit = [tex]\frac{10}{100}* 7600[/tex]
Profit = Rs 760
Amount in which the bike is sold = 7600 + 760 = Rs 8360
If Mr. Wilson had bought the bike for Rs. 8000 and sold it in the same amount,
So he would still be
having a profit of Rs. 360
How much Profit %age:
Profit % age = [tex]Profit * 100/CP[/tex]
Profit %age = 360 * 100 / 8000
Profit % age = 36,000 / 8000
Profit %age = 4.5 %
Betty spent 50 minutes on solving 25 questions. If she spent the same amount of time solving each question, how long would it take to do 30 questions
The set of numbers 1, 3, 7, 11, 15, and 36 contains all possible values for q. What value of q makes the following equation true: 4q+9=37 ?
Answer:
q = 7
Step-by-step explanation:
4q + 9 = 37
If a letter and a number are together it means multiply.
Substitute 7 into the equation:
4(7) + 9 = 37
28 + 9 = 37
So q must equal 7
1. (6.2 lesson) Calculate the value of z. (Round to the hundredth) *
z
18
520
22.84
O 29.24
O O O O
18.24
0.04
This is a required question
Answer:
The answer is explained below
Step-by-step explanation:
The question is not complete, I would explain how to calculate the value of Z
The z score is a measure in statistic used to determine the number of standard deviations by which the raw score if from the mean of a normal distribution. If the z score is positive then the raw score is above the mean while if a z score is negative the raw score is below the mean. The z score (z) is given by the formula:
[tex]z=\frac{x-\mu}{\sigma}[/tex]
Where x is the raw score, μ is the mean and σ is the standard deviation.
Let us assume that the mean (μ) = 20 and the standard deviation (σ) = 3. To calculate the z score for x = 30 it is given by:
[tex]z=\frac{x-\mu}{\sigma}=\frac{30-20}{3}=3.33[/tex]
Joey is building a frame for a sandbox. The sandbox is going be have the shape and dimensions below. If the diagonal of the sandbox measures 14 feet, what kind of quadrilateral will the sandbox be? Explain how you know.
Answer:
Quadrilateral
Step-by-step explanation:
In the sandbox, opposite sides are equal.
However, using Pythagoras Theorem
[tex]14^2\neq 12^2+8^2\\196 \neq 208[/tex]
Therefore, the sandbox cannot be a rectangle since if it were, each triangle must be a right triangle.
In the triangle
If [tex]c^2=a^2+b^2[/tex], C is a right angle If [tex]c^2<a^2+b^2[/tex], C is an acute angle If [tex]c^2>a^2+b^2[/tex] , C is an obtuse angleSince [tex]198<208[/tex], Angles C and X are acute angles.
Therefore, the sandbox does not satisfy the properties of any known quadrilateral. It is simply a quadrilateral-shaped sandbox.
Multiply. 6.421 x 10 = _____ 0.6421 64.21 642.10 6,421
Answer:
64.21
Step-by-step explanation:
After performing some simple mathematical operations, we know that 6.421 x 10 = 64.21.
What exactly are mathematical operations?An operation is a function in mathematics that transforms zero or more input values into a clearly defined output value. The operation's arity is determined by the number of operands. A mathematical action is called an operation. Mathematical operations include addition, subtraction, multiplication, division, and finding the root.So, 6.421 x 10 = ?:
Evaluate as follows:
6.421 x 1064.21Therefore, after performing some simple mathematical operations, we know that 6.421 x 10 = 64.21.
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The correct question is given below:
Multiply. 6.421 x 10 = _____
A. 0.6421
B. 64.21
C. 642.10
D. 6,421
3 3/7 divided by 6 2/5
Answer:
15/28
Step-by-step explanation:
3 3/7 ÷ 6 2/5
Change to improper fractions
(7*3+3)/7 ÷ (5*6+2)/5
24/7 ÷32/5
Copy dot flip
24/7 * 5/32
Cancel an 8 from the numerator and denominator
3/7 * 5/4
15/28
Answer: 15/28
Explanation: First write each mixed number as an improper fraction.
As a quick review, to write a mixed number as an improper fraction,
we multiply the denominator times the whole number,
then we add the numerator.
First rewrite 3 and 3/7 as 24/7 and 6 and 2/5 as 32/5.
So we have 24/7 ÷ 32/5.
Dividing by a fraction is the same as multiplying by its reciprocal.
In other words, we can change the division
sign to multiplication and flip the second fraction.
So 24/7 ÷ 32/5 can be rewritten as 24/7 × 5/32.
Before multiplying, noice that the 24 and 32 cross-cancel to 3 and 4.
So we have 3/7 × 5/4 which is 15/28.
I NEED HELP NOW PLS ASAP
Answer:
Step-by-step explanation:
hello,
I understand that there are only 4 cards and then the player draw a card out of the 4 cards, replace it so the second draw is still out of the 4 cards
How many ways can you draw two cards?
as the first card is replaced, this is 4*4=16
so there is 16 possibles ways
hearts hearts
hearts clubs
hearts diamonds
hearts spades
clubs hearts
clubs clubs
clubs diamonds
clubs spades
diamonds hearts
diamonds clubs
diamonds diamonds
diamonds spades
spades hearts
spades clubs
spades diamonds
spades spades
out of these 16 ways, how many have same colour for both cards?
I assume that there are only two colours Red and Black, so we can have
only 8 ways so the first probability is 8/16 = 1/2
out of these 16 ways, how many are red ace first and black ace?
There are 4 ways so the probability is 4/16 = 1/4
hope this helps
Standard deck has aces in four colors
Player draws one from four so the probability of drawing any first card is 1/4 (in the first drawing)
We replace the card so in second drowing its the same
So the probability of drawing two card of one chosen color is 1/4*1/4, and we have four colors
The probability of drawing two card of the same color is:
1/4*1/4*4 = 1/4There are 2 red aces and 2 black aces
(sorry for coments - not reading carefully)
So a probability of drawing red ace in first drawing is 2/4=1/2
a probability of drawing black ace in second drowing is the same ('cause we replace the one drawn first)
So the probability that a red ace is drawn first and then the black ace is:
1/2*1/2 = 1/4Which of the following is a radical equation?
X+ V5 = 12
x² = 16
3+ x^7=13
7-14
Solve 7+x-15=-2 2/3
5 1/3
6 1/3
10 2/3 answered got it wrong
20 2/3
Answer:
X = 6 2/3
Step-by-step explanation:
Steps are in the photo above
Answer:
16/3
Step-by-step explanation:
Begin the solution of 7+x-15=-2 2/3 by combining 7 and -15:
x - 8 = -8/3, which is equivalent to x = 24/3 - 8/3
or: x = 16/3
Slide the green dot from 0 to plot the number at the correct
location
Pablo owes his sister $9. His sister Nina owes their
mother three times that amount. What number on the
number line represents Nina's debt?
Plot 9
9
?
-30 -27 -24 21 -18 -15 -12 -9
The life spasms of a computer manufacturer’s hard drives are normally distributed, with a mean of 3 years 6 months and a standard deviation of 9 months. What is the probability of a randomly selected hard drive from the company lasting between 2 years and 3 months and 3 years and 3 months? Use the portion of the standard normal table below to help answer the question.
Answer:
32%
Step-by-step explanation:
Got it right on the quiz.
Pls give me brainliest
Answer:
32%
Step-by-step explanation:
Easy Cooking to a cooking supply company Last year, the company sold 21,000 ovens. This year, they sold 49 fewer ovens than that
How many ovens did they sell this year?
Answer:
20,951
Step-by-step explanation:
If the company sold 21,00 ovens and this year they sold 49 fewer, then that means we are being told to subtract 49 from 21,00 which is the initial value.
21,000-49 = 20,951
therefore, this year they sold 20,951 (twenty-thousand nine hundred fifty one) ovens.
Answer:
20,951 ovens
Step-by-step explanation:
Last year, the company sold 21,000 ovens. This year, they sold 49 fewer ovens that that.
Fewer, means less, or subtractions. Therefore; we must subtract 49 (the difference between this year and last year) from 21,000 (the number of ovens sold this year)
21,000-49
20,951
The company sold 20,951 ovens this year.
Solve the system and give your answer as a coordinate point in the form (k, c) k+c=100 51k+11c=2500
Answer:
k = 35, c = 65
Step-by-step explanation:
Solve the following system:
{c + k = 100 | (equation 1)
{11 c + 51 k = 2500 | (equation 2)
Swap equation 1 with equation 2:
{11 c + 51 k = 2500 | (equation 1)
{c + k = 100 | (equation 2)
Subtract 1/11 × (equation 1) from equation 2:
{11 c + 51 k = 2500 | (equation 1)
{0 c - (40 k)/11 = -1400/11 | (equation 2)
Multiply equation 2 by -11/40:
{11 c + 51 k = 2500 | (equation 1)
{0 c+k = 35 | (equation 2)
Subtract 51 × (equation 2) from equation 1:
{11 c+0 k = 715 | (equation 1)
{0 c+k = 35 | (equation 2)
Divide equation 1 by 11:
{c+0 k = 65 | (equation 1)
{0 c+k = 35 | (equation 2)
Collect results:
Answer: {c = 65 , k = 35
The university theater uses a combination of one letter (A – Z) and two digits (0 – 9) to identify their reserved seats. How many reserved seats are possible using a combination of one letter followed by two digits?
1.) 2600
2.) 234
3.) 260
4.) 2106
Answer:
Correct option: 1) 2600
Step-by-step explanation:
The letter has a total of 26 possible values (from 'a' to 'z'), and each digit has a total of 10 possible values (from 0 to 9).
So, to find the number of reserved seats possible, we just need to multiply the number of possible values of each letter and digit.
We have one letter and two digits, so we have:
26 * 10 * 10 = 2600 possible reserved seats
Correct option: 1)
Answer:
1.) 2,600
Step-by-step explanation:
PLEASE HELP Draw the polygon whose vertices are (-2, 3), (-2, -3) (3, 1) and ( 3, 7) ,
Answer:
Parallelogram
Step-by-step explanation:
When I graphed these points on a coordinate plane and connect the points, I see a parallelogram.
PLZ MARK BRAINLIEST!!!
WILL MARK BRAINLIEST ANSWER Solve the formula for the specified variable. V = XLJ for X
Answer:
X = (V / LJ)
Step-by-step explanation:
V = XLJ
Since you're isolating X, divide both sides by (LJ)
(V / LJ) = X
Find A u B if A = {4, 7, 10, 13, 17) and B = (3, 5, 7, 9).
O 7
O (3.4.5.79. 10. 13.17)
NEXT CHESTION
ASK FOR HELP
Answer:
{3,4,5, 7,9, 10, 13, 17)
Step-by-step explanation:
A = {4, 7, 10, 13, 17)
B = (3, 5, 7, 9).
U means union or join together
A u B means {3,4,5, 7,9, 10, 13, 17)
Answer:
A u B is { 3 , 4 , 5 , 7 , 9 , 10 , 13 , 17 }
Hope this helps
A card is drawn one at a time from a
well-shuffled deck of 52 cards. In 11
repetitions of this experiment, 2 kings
are drawn. If E is the event in which a
king is drawn in the 11 trials, find the
experimental probability P(E).
P(E) = 11
Enter
Answer:
[tex]\dfrac{2}{11}[/tex]
Step-by-step explanation:
It is given that a card is drawn one at a time from a well-shuffled deck of 52 cards.
Total repetitions of this experiment = 11
Number of kings in the experiment = 2
Let E is the event in which a king is drawn in the 11 trials. So
[tex]P(E)=\dfrac{\text{Number of kings in the experiment}}{\text{Total repetitions of this experiment}}[/tex]
[tex]P(E)=\dfrac{2}{11}[/tex]
Therefore, the experimental probability P(E) is [tex]\dfrac{2}{11}[/tex].
Answer asap will mark as brainliest if correct
Answer:
D. x = +/-sqrt(y - 11)
Step-by-step explanation:
y = x^2 + 11
x^2 + 11 = y
x^2 = y - 11
x = +/-sqrt(y - 11)
Simplify $\frac{1+\sqrt{2}}{2+\sqrt{3}}$. Your solution can be converted to the form $A(1+\sqrt{B})-(\sqrt{C}+\sqrt{D})$, where $A$, $B$, $C$, and $D$ are positive integers. What is $A+B+C+D$?
Answer:
A+B+C+D = 13
Step-by-step explanation:
The given expression is:
[tex]\dfrac{1+\sqrt{2}}{2+\sqrt{3}}[/tex]
We have to simply it and express it in the form of:
[tex]A(1+\sqrt{B})-(\sqrt{C}+\sqrt{D})[/tex]
Multiply and divide the given expression with [tex]2-\sqrt 3[/tex]:
[tex]\dfrac{1+\sqrt{2}}{2+\sqrt{3}} \times \dfrac{2-\sqrt 3}{2-\sqrt 3}\\\Rightarrow \dfrac{(1+\sqrt{2}) \times (2-\sqrt 3)}{(2+\sqrt{3})\times (2-\sqrt 3)}\\\Rightarrow \dfrac{2+2\sqrt2-\sqrt3-\sqrt6}{2^2-(\sqrt{3})^2}\\\Rightarrow \dfrac{2+2\sqrt2-\sqrt3-\sqrt6}{4-3}\\\Rightarrow \dfrac{2(1+\sqrt2)-(\sqrt3+\sqrt6)}{1}\\\Rightarrow 2(1+\sqrt2)-(\sqrt3+\sqrt6)[/tex]
It is the simplified form of given expression.
Formula used:
[tex](a+b)(a-b) = a^{2} -b^{2}[/tex]
Comparing the simplified expression with [tex]A(1+\sqrt{B})-(\sqrt{C}+\sqrt{D})[/tex]
[tex]2(1+\sqrt2)-(\sqrt3+\sqrt6)=A(1+\sqrt{B})-(\sqrt{C}+\sqrt{D})\\\Rightarrow A =2, B=2, C=3\ and\ D=6[/tex]
So, value of
[tex]A+B+C+D = 2+2+3+6 = 13[/tex]