Answer:
112.5
Step-by-step explanation:
You have to divide 225 by 2 and that's the answer you should be able to get.
what is the length of 5cm
Answer:
1.9685
Step-by-step explanation:
If you are thinking in inches and if you need to simplify its pretty easy.
Rodrigo and Melissa went to the art supply store to buy drawing materials. Rodrigo bought 10
pencils and 7 felt-tip markers for a total of $19.00. Melissa bought 3 pencils and 5 felt-tip markers
for a total of $10.05. Which of the following systems of equations could be used to determine
the cost of one pencil, P, and one felt-tip marker, m?
Answer:
10P + 7m = 19 .......... 1
3P + 5m = 10.05 .......... 2
Step-by-step explanation:
Let the cost of pencil be represented by P, and felt-tip by m. So that;
Rodrigo bought 10 pencils and 7 felt-tip at the cost of $19.0.
⇒ 10P + 7m = 19 .......... 1
Melissa bought 3 pencils and 5 felt-tip at the cost of $10.05.
⇒ 3P + 5m = 10.05 .......... 2
From equations 1 and 2,
10P + 7m = 19 .......... 1
3P + 5m = 10.05 .......... 2
Multiply equation 1 by 3, and 2 by 10 to have;
30P + 21m = 57 ......... 3
30P + 50m = 100.5 ....... 4
Subtract equation 3 from 4,
30P - 30P + 50m - 21m = 100.5 - 57
29m =43.5
m = [tex]\frac{43.5}{29}[/tex]
= 1.5
m = 1.5
Substitute the value of m in equation 2,
3P + 5m = 10.05 .......... 2
3P + 5(1.5) = 10.05
3P = 7.5 = 10.05
3P = 3
P = 1.0
Thus, the cost of a pencil is $1.0 and that of a felt-tip is $1.5.
How many two digit numbers are divisible by 5
!pls be fast ok!
Answer:
18 should be the correct answer
Answer:
18
Step-by-step explanation:
There are 18 terms of two digit numbers that are divisible by 5.
Kyle is saving for a trip to Spain. He already has $2,000 in the bank, but wants his balance to be at least $3,200 by the end of the month. How much more does he need to save () to reach his goal?
Answer:
1,200 more
Step-by-step explanation:
because 1,200 + 2000=3,200
i really need some help
Answer:
[tex]\boxed{\textsf{ The correct option is Option B \textbf{Chemical Change}.}}[/tex]
Step-by-step explanation:
Alkali metals such as Pottasium must be transported in special sealed containers because they have the ability to born or exclude upon contact with water due to their high reactivity. This is an example of Chemical Change .
Alkali metals like Pottasium (K) , Sodium (Na) , etc react vigorously with water . So they should be prevented in coming in contact to water . They are generally stored in kerosene . Here's an example of reaction of Alkali Metals with water .
★ Reaction of Sodium and Water :-
[tex]\boxed{\sf\underset{Sodium}{Na}+\underset{Water}{H_2O}\longrightarrow \underset{Sodium\ Hydroxide}{NaOH}+\underset{Hydrogen}{H_2} }[/tex]
Write an equation of the perpendicular bisector of the segment with endpoints M(1,5) and N(7,−1).
PLEASE HELP!!!
Answer:
Step-by-step explanation:
slope of MN=(-1-5)/(7-1)=-6/6=-1
slope of line ⊥ to given line=-1/(-1)=1
To find mid point of M and N
[tex]x=\frac{1+7}{2} =4\\y=\frac{5+(-1)}{2} =2[/tex]
eq. of perpendicular bisector is
y-2=1(x-4)
y=x-4+2
or y=x-2
JK ran 12 3/4 around a track each lap around the track is 1/8 how many laps around the track did JK run
Answer:
50
Step-by-step explanation:
In the equation you wrote in part A, which is the independent value and which is the dependent value? this is edmentum in expressions and equations
Answer:
i dont know but i think 12 points
Step-by-step explanation:
sorry ive been stressed outA triangle has sides with lengths of 5 centimeters, 12 centimeters, and 15 centimeters. Is it a right triangle
Answer:
No
Step-by-step explanation:
You use the Pythagorean Therom and square your legs (5 and 12) and your hypotenuse (14) it would add up to 25+144=196.
This is not true since 144+25 is 169, not 196
Answer:
No, it is not a right triangle.
Step-by-step explanation:
You can determine whether a triangle is a right triangle by using the pythagorean theorem.
a^2 + b^2 = c^2
c will always be the longest side of the triangle, so in this case you need to substitute 5 and 12 in for a and b and see if it simplifies to 15.
5^2 + 12^2 = c^2
25 + 144 = c^2
c^2 = 169
c = 13
C would be 13, not 15, so the triangle is not a right triangle
Hope that helps! :))
Describe a situation that can be modeled by the integer -10.
Answer:
To start a cupcake stand you need ten dollars from your parents, who tell you that you must pay it back. You open up your stand with 10 dollars of debt.
2. What is the place value of the digit 2 in: 0.3251
A. tenths B. hundredths C. thousandths
D. ten thousandth
Answer:
Digit 2 is the hundredths place value
Step-by-step explanation:
plz mark as brainliest ! :D
Write a sentence/scenario that uses the integer -12 to represent a
quantity in the real world. Explain the meaning of zero in the setting of the
scenario,
The temperature outside is -12 degrees Fahrenheit.
Zero is where the temperature changes from a negative value to a positive value.
please help
If Lucia has three dogs and Lucas gives her five, how many dogs does Lucia finally have?
Answer:
8
Step-by-step explanation:
3 + 5 = 8
what's
[tex]4 + 8 \div 2[/tex]
Answer:
[tex]4 + 8 \div 2 \\ 12 \div 2 \\ 6[/tex]
Tommy has $1,250 to invest. He puts it in
a bank account that earns 3% interest
annually. How much money will he earn
in interest after 7 years?
Answer:
$1,512.50
Step-by-step explanation:
1,250 x 0.03 = 37.50
37.50 x 7 = 262.50
1,250 + 262.50 = 1,512.50
what explicit expression can be used to find any term of this sequence
Answer:
A
Step-by-step explanation:
is is term
so n2+2 works for both 2 and 6, 11 and 18 as well as 27
1 squared +2 and 2 squared plus two, 3 squared +2, 4 squared +2 and 52+2
if my answer helps please mark as brainliest.
can someone please help me
Answer:
x squared, i dont know how to do the lil 2 on a computer lolz
Shawn has a set of 125 marbles. He is organizing his marbles into 5 equal groups. How many marbles should he put in each group?
Answer:
He should put 25 marbles in each group because 125/5 is equal to 25.
CAN SOMEONE HELP ME ASAP
Answer:
3 minutes
Step-by-step explanation:
To calculate this, you have to multiply 4.5 minutes by 8. This will give you the amount of pages that Wafa will print.
4.5 x 8 = 36 pages
Now that you have the amount of pages, you should divide it by the speed of the Sure-Fire printer. 12 ppm means that 12 pages can be printed in 1 minute.
36/12 = 3
Therefore, it would take 3 minutes if Wafa were to use her brother's Sure-Fire printer.
Answer:
3 minutes
Step-by-step explanation:
Apricot prints 8 pages per minute, the Sure-fire prints 12.
That means Wafa's brother's printer is 1.5 times faster than Wafa's own.
That means his printer can print the document in 4.5min / 1.5 = 3min
Is this correct? If not can someone please explain to me why it’s wrong or how i can fix it?
Answer:
YOU'RE RIGHT GOOD JOB :)
Step-by-step explanation:
alexis divided a 1 3/4 pound bag of apples among 3 friends. how many pounds of apples did each friend receive?
A: 7/12
B: 3/4
C: 2/3
D: 5/6
SHOW YOUR WORK
Find The range and interquartile 45279.11, 5271. 04, 5309.73, 5363.38, 5409.72, 5444.74,  5603.46, 5695.39, 5871.96, 5972.35
Answer:
40008 07 is the answer good luck :)
Somebody help me plss
Answer:
6)B 7)C 8)B 9)D 10)c
Step-by-step explanation:
i think i did them all correct
Olanda, Linda and Roberta each bought a bag of chips at a concession stand, and Marsala bought a cookie. Problem: audio What decimal is equivalent to the fraction of the girls who bought chips? Enter your answer in the box.
Answer:
0.75
Step-by-step explanation:
Given
[tex]Chips=\{Olanda, Linda, Roberta\}[/tex]
[tex]Cookies=\{Marsala\}\\[/tex]
Required
Equivalent of those that bought chips
From the question, 3 out of the 4 girls bought chips.
So, the fraction is:
[tex]Chips = \frac{3}{4}[/tex]
Express as decimal
[tex]Chips = 0.75[/tex]
Hence: the decimal equivalent is 0.75
A savings account pays interest at a rate of R% per year.
Jack invests £5500 in the account for one year.
At the end of the year, Jack pays tax on the interest at a rate of 40%.
After paying tax, he gets £79.20.
Work out the value of R
Answer:
.
Step-by-step explanation:
Answer:
2.4%
Step-by-step explanation:
79.20/0.6=132
132/5500*100=24%
Is the expression (-2m)^100 positive or negative when it is simplified?
Answer:
positive
Step-by-step explanation:
the reasoning behind this is because when you do powers you multiply the number by itself. If you multiply -2x-2 then it turns into a positive number and will stay a positve number
have a great day :D
On a horizontal number line, -43 is located to the left of -35
Enter an inequality that represents this statement
pls help!!! quick
Step-by-step explanation:
-43 < -35
hope this helps
Rafael needs to read 3 novels each month.
Let N be the number of novels Rafael needs to read in M months.
Write an equation relating N to M. Then use this equation to find the number of novels Rafael needs to read in 13 months.
Answer:
n×m= number of books read
3×13= 39 books
Step-by-step explanation:
Using substitution for the original equation with m and n, you can find the number of books read by plugging in the numbers in place of the variables.
what is the y intercept of the line with equation x-3y=12
Answer: y = -4
Step-by-step explanation: to find the y intercept substitute x=0
0-3y=12
Then solve for y
0-3y=12---> y= 12/-3
y=-4
a) Write (3x + 1)(x + 4)(2x + 7) in the form ax3 + bx2 + cx + d
where a, b, c and d are integers.
Step-by-step explanation:
6x^3 + 47x^2 + 99x + 28
hope it helps you
The expression (3x + 1)(x + 4)(2x + 7) in the form ax3³ + bx² + cx + d
is 6x³ + 29x² + 36x + 28.
What is a factor of a polynomial?We know that if x = a is one of the roots of a given polynomial x - a = 0 is a factor of the given polynomial.
To confirm if x - a = 0 is a factor of a polynomial we replace f(x) with f(a) and if the remainder is zero then it is confirmed that x - a = 0 is a factor.
Given, A product of three linear binomials which will result to a cubic polynomial.
Therefore,
(3x + 1)(x + 4)(2x + 7),
= (3x² + 3x + x + 4)(2x + 7).
= (3x² + 4x + 4)(2x + 7).
= 6x³ + 21x² + 8x² + 28x + 8x + 28.
= 6x³ + 29x² + 36x + 28.
learn more about cubic polynomials here :
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