Answers
Answer:
Step-by-step explanation:
11/77=x/21
x=3
Related Questions
In a class where the number of girls is 36% of the total number, there are 48
boys. How many students are there in the class?
Answers
Answer:
75 students
Step-by-step explanation:
100- 36=64
64%=48
36=????
36/64 × 48
= 27 girls
total 27+48=75 students
Answer:
48 / 64% = 75 students total
Step-by-step explanation:
Please answer this I need helllp
Answers
Answer:
Equation: y = 2x
Graph: see attachment
Step-by-step explanation:
Pieces of paper = x
Number of Valentines = y
The equation is a proportional equation and can be represented as y = kx
k is the constant of proportionality
k = y/x
Using (2, 4),
k = 4/2 = 2
To find the equation, substitute k = 2 into y = kx
Thus:
y = 2x
The graph has been plotted and attached below.
Which of the following sets of numbers could represent the three sides of a triangle?
Answers
Answer:
Step-by-step explanation:
The longest side must be less than or equal to the sum of the two other sides. Only {8,16,23} and {7,14,21} are possible.
Answer:
(7, 14, 21)
(8, 16, 23)
Step-by-step explanation:
Greta currently works 45 hours per week and earns a weekly salary of $729. She
will soon be starting a new job where her salary will be increased by 10% and her
hours reduced by 10%.
How much more will she be earning per hour at her new job?
Answers
Answer:
Step-by-step explanation:
current rate = $729/(45 hours) = $16.20/hour
increased salary = 1.10×$729 = $801.90
decreased hours = 0.90×45 = 40.5
increased rate = $801.90/(40.5 hours) = $19.80/hour
increase in rate = $19.80/hour - $16.20/hour = $3.60/hour
how do you get the answer for the area
Answers
Answer:
You get a answer for area by multiplying height by width to find the area.
A solenoid has a magnetic field of magnitude 0.50T when carrying a current of 400 A. The solenoid is 8.0 m long. What is the number of turns in this solenoid, assuming that it is an ideal solenoid?
Answers
Answer:
The correct answer is "995.22 turns".
Step-by-step explanation:
The given values are:
Magnetic field,
B = 0.50 T
Current,
i = 400 A
Length of solenoid,
L = 8.0 m
As we know,
⇒ [tex]B=\mu_0ni[/tex]
then,
⇒ [tex]n=\frac{B}{\mu_0i}[/tex]
On substituting the given values, we get
⇒ [tex]=\frac{0.50}{4 \pi\times 10^{-7}\times 400}[/tex]
⇒ [tex]=\frac{0.50}{5.024\times 10^{-4}}[/tex]
⇒ [tex]=995.22 \ turns[/tex]
4.5 = 1.5x
4.5 ÷ ___ = 1.5x ÷ ___
___ = x
Answers
Answer:
The value of x is 3.
Step-by-step explanation:
The steps are :
4.5 = 1.5x
4.5 ÷ 1.5 = 1.5x ÷ 1.5
3 = x
I really don't know how to do this-
Answers
Answer:
b is correct
Step-by-step explanation:
The sales tax in Texas is 8.25% and an item costs $600. How much is the tax?
Answers
Answer:
49.5
Step-by-step explanation:
THERE ARE 7 CONSECUTIVE NUMBERS.
IF THE LARGEST NUMBER 15 99, WHAT
IS THE SUM OF ALL THE GIVEN NUMBENS.
Answers
S₇ = 672
Step-by-step explanation:
If there are 7 consecutive numbers and the largest is 99, then there are 6 smaller
consecutive numbers:
Smallest number = 99-6 = 93
The sequence is 93, 94, 95, 96, 97, 98, 99.
Where:
a₁ = 93
an = 99
n = 7
Sum of the sequence:
Sn = n/2(a₁ + an)
S₇ = 7/2 (93 + 99)
S₇ = 7/2 (192)
S₇ = 7(96)
S₇ = 672
Answer:
S₇ = 672
Step-by-step explanation:
If there are 7 consecutive numbers and the largest is 99, then there are 6 smaller consecutive numbers:
Smallest number = 99-6 = 93
The sequence is 93, 94, 95, 96, 97, 98, 99.
Where:
a₁ = 93
an = 99
n = 7
Sum of the sequence:
Sn = n/2(a₁ + an)
S₇ = 7/2 (93 + 99)
S₇ = 7/2 (192)
S₇ = 7(96)
S₇ = 672
How many ninths are there in one whole?
I give u brainliest
Answers
9 this is because in this equation we need to work out how many ninths there are in one whole. Our model shows one whole square. To divide it into nine equal parts. Each of these equal parts is a ninth. We have three ninths on the top row. Another three ninths on the second rows makes six ninths altogether. And three more ninths on the but to row makes a total of nine ninths equal one whole. We drew a square and we divided it into nine equal parts. Nine ninths equals one whole.
pls help will give brainlyist
A circular patio has a diameter of 4 yards. What is the area of the patio? Use 3.14 for it.
A. 25.12 yd?
B. 6.28 yd?
C. 12.56 yd2
D. 50.24 yd2
Answers
Answer:
a
Step-by-step explanation:
Select the correct answer from each drop-down menu. Complete each sentence about types of photography. photography involves capturing the subject of your photograph in motion, whereas photographing Inanimate objects. > photography involves
Answers
Answer:
1. whale 2. crowded boat
Step-by-step explanation:
on edge
Answer:
1. whale 2. crowded boat yw
Step-by-step explanation:
please help me solve this question
Answers
Answer:
The equation B can be used to solve for x
B. 7x + 11x = 90
Rename The following decimal form into fraction form. 1)0.75 2)0.35 3)0.24
Answers
Answer:
1) 3/4
2) 7/20
3) 6/25
Step-by-step explanation:
1) 0.75
= 75/100
= 3/4
2) 0.35
= 35/100
= 7/20
3) 0.24
= 24/100
= 6/25
Hope it helps!
Calculate the value for each determinant:
Answers
Answer:
See explanations below
Step-by-step explanation:
Example of how to find the determinant of a 2×2 matrices is as shown;
[tex]\left[\begin{array}{ccc}a&b\\c&d&\end{array}\right][/tex]
= (a*d)-(b*c)
= ad - bc
Applying this to solve the given questions
1) (3*4) - (-3*-1)
= 12 - (3)
= 9
2) (-12*5)-(-1*12)
= -60 - (-12)
= -60+12
= -48
3) (0*4)-(-1*17)
= 0-(-17)
= 0+17
= 17
4) (8*-1)-(-4*-1)
= -8-(4)
= -8-4
= -12
5) (2*-1)-(2*-1)
= -2-(-2)
= -2+2
= 0
6) 1(1) - 0(0)
= 1 - 0
= 1
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*..
IM GIVING 40 POINTS !! DONT SKIP :((.
Answers
Answer:
M = -4/3. B = 8
Negative slope
Step-by-step explanation:
But not sure if it’s proportional or not
- 6 + \sqrt{9 - 8a} = 1−6+
9−8a
=1
Answers
Answer:
[tex]a = -5[/tex]
Step-by-step explanation:
Given
[tex]- 6 + \sqrt{9 - 8a} = 1[/tex]
Required
Solve for a
[tex]- 6 + \sqrt{9 - 8a} = 1[/tex]
Add 6 to both sides
[tex]6- 6 + \sqrt{9 - 8a} = 1+6[/tex]
[tex]\sqrt{9 - 8a} = 7[/tex]
Square both sides
[tex]( \sqrt{9 - 8a})^2 = 7^2[/tex]
[tex]9 - 8a = 49[/tex]
Subtract 9 from both sides
[tex]9-9 - 8a = 49-9[/tex]
[tex]- 8a = 40[/tex]
Make a the subject
[tex]a = -\frac{40}{8}[/tex]
[tex]a = -5[/tex]
solucion plis 4x- 2x > -8 -6
Answers
The answer is,
[tex]x > - 7[/tex]
hope it helps.
Answer:
x>-7
Step-by-step explanation:
4x-2x>-8-6
-2x>-14
x>-7
AB is side of regular hexagon and AC
is a side of a regular 8 sided polygon find: angle AOB , AOC,BOC,OBC
Answers
Answer:a
Step-by-step explanation:
a. Renard let’s t= the number of taffy bags and c= the number of Carmel bags. Help him write two equations to represent the information in the problem.
b. Now are are is stuck. He says, “if both of the equations were in the form ‘t= something’, I could set the two expressions equal to each other to find the solution.” Help him rewrite the equations into a form he can use to solve the problem.
c. Solve Renard’s system of equations to find the number of bags of Carmel and number of bags of taffy that Ariel bought.
d. How you can verify that your solution is correct?
Answers
Answer:
20 taffy bags and 15 caramel candy bagsStep-by-step explanation:
Given:
t = the number of taffy bagsc = the number of caramel bagsNumber of taffy's are 5 more than caramel bagsTaffy bags weigh 8 ounces and caramel bags weigh 16 ouncesTotal weight is 400 ouncesEquations:
t = c + 5 (the difference in number of bags)8t + 16c = 400 (the weight of the bags)Simplify the second equation by dividing all terms by 8:
t + 2c = 50Substitute t and solve for c:
c + 5 + 2c = 503c = 50 - 53c = 45c = 45/3c = 15Find the value of t:
t = 15 + 5 = 20Answer:
20 taffy bags and 15 caramel candy bagsPLZ HELP ME THIS IS 7TH GRADE MATH I NEED HELP ASAP
Answers
Answer:
8 is 73 corresponding and 9 is 107 supplementary
Step-by-step explanation:
What is the rate of change for (0,5) (-6,-3)
Answers
Answer:
[tex]1 \frac{1}{3}[/tex]
Step-by-step explanation:
rate of change = Δy / Δx = y2 - y1/x2 - x1
= -3 - 5/-6 - 0
= - 8/-6
= 1 and 1/3rd
triangle inequality proof
/a + b/ ≤ /a/ + /b/
Answers
Answer:
a^2+b^2+2|a||b|≥a2+b2+2ab(|a|+|b|)2≥|a+b|2(∵∀x∈R;x2=|x|2)∴|a|+|b|≥|a+b|\
Step-by-step explanation:
Plz answer this question:
Answers
Answer:
90°
Step-by-step explanation:
5x+20=9x
20=9x-5x
20=4x
x=5
5x+20+9x=
5(5)+20+9(5)=
25+20+45=
90
if £1 = 0.864 Lt, work out the amount, to the nearest penny , that 1 Lt is worth
Answers
Answer:
[tex]1\ Lt = \pounds 1.157[/tex]
Step-by-step explanation:
Given
[tex]\pounds 1 = 0.864\ Lt[/tex]
Required
Determine the worth of 1 Lt
[tex]\pounds 1 = 0.864\ Lt[/tex]
Divide both sides by 0.864
[tex]\pounds \frac{1}{0.864} = \frac{0.864}{0.864}\ Lt[/tex]
[tex]\pounds \frac{1}{0.864} = 1\ Lt[/tex]
[tex]1\ Lt = \pounds \frac{1}{0.864}[/tex]
[tex]1\ Lt = \pounds 1.157[/tex] -- approximated
2, 6, 14, 39, 49, 5, 54, 47, 41, 55, 8, 47, 23, 6
What is the outliers?
Answers
Answer:
I think the outliers are 2, 5, 6, and 6. Not sure about 8 though
Swimming pool was 9 meters wide with an area of 90 square.What is the length of the pool?
Answers
Answer:
90/9 = 10, the length of the pool. This can be proven as 10 x 9 = 90²
Step-by-step explanation:
Equivalent expression of 10+(x divided 16)
Answers
Answer:
x/16 + 10
Step-by-step explanation:
10+(x÷16)
To add or subtract expressions, expand them to make their denominators the same. Multiply 10 times 16/16.
10 x 16 / 16 + x/16
Since 10 x 16 / 16 and x/16 have the same denominator, add them by adding their numerators.
10 x 16 + x / 16
Do the multiplications in 10×16+x.
160 + x / 16 = x/16 + 10
Is -6/3 a whole,integer,or rational
Answers
Answer:
-6/3 is a rational
Step-by-step explanation:
its a rational because it expresses as the ratio of two integers.