Lu's math score on her achievement test in seventh grade was a 650. Her math teacher told her that her test score level went up by 25% from her sixth grade test score level. What was Lu's test score level in sixth grade? Show your work.

Answers

Answer 1

Answer: $x=Lu's\ grade\ in\ sixth\ grade. \n x* (125)/(100) =650 \n x=650* (100)/(125) \n x= ((650)(100))/(125) = (65000)/(125) \n \boxed{x=520}$

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Compare 25\28 to 5\6
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Estimate the value as a product of a single digit and a power of 10. the one with () are exponets .... 906,000,000,000 A.9×10 (10) B.9×10 (11) C.9.06×10 (11) D. 9.06×10 (12)

Which number is between 0.5 and 5/8 A.1/4 B.8/28 C.9/16 D.19/25

Answers

try doing a number line :

0.5____________________________0_________________________5/8

so then you need to convert 0.5 into a fraction so it looks like this :

0.5 is equal to 5/10 then you simplify 5/10 :

5 can go into 5 once so that's   1
and
5 can go into 10 twice so that's 2

so you just simplify 5/10 into 1/2
so your number line should now look something like this:

5/8_________________________________________________________1/2

then you can convert your fractions into percents

A.1/4 is 25%
B.8/28 is 28.5% (not sure)
C.9/16 is 56% (not sure )
D. 19/25 is 76%

then you convert your numbers on your numbers line so that would be the fractions 5/8 and 1/2

5/8 is 63%
1/2 is 50%

put them on a number line like this

50%_______________________________________63%

and your answers
A.25%
B.28.5%
C.56%
D.76%

** Now you can easily scratch A. B. and D. because there either too high or too low  !!!

And the Answer is C. 56% or in the original question it would be C. 9/16

75 is 20% of what number

Answers

375 Is the answer I think

the answer is 375 . your welcome

Find the difference

-6 - 8

Answers

Answer:

-6-8= -14

Step-by-step explanation

negative eight plus negative 6 is negative 14.

What is the GCF of 32 and 56? A.
4

B.
8

C.
16

D.
32

Answers

32: 1, 2, 4, 8, 16, 32
56: 1, 2, 4, 7, 8, 14, 28, 56
So 1, 2, 4 and 8 can both divisible by 32 and 56 but 8 is a largest number so 8 will be our GCF

Answer:

8 is the gcf

Step-by-step explanation:

A high school graduating class is made up of 462 students. There are 132 more girls than boys. How many boys are in the class?

Answers

Answer: There are 165 boys

Step-by-step explanation:

Let's call b the number of boys and call g the number of girls in the class.

Then we know that:

There are 462 students. This is:

$b + g = 462$

We also know that there are 132 more girls than boys, this means that:

$g = b + 132$

Now we substitute the second equation in the first and solve for b.

$b + (b + 132) = 462$

$2b = 462-132$

$2b = 330$

$b = 165$

You want to purchase a blender for $47.99. The sales tax rate is 8.25%. How much money do you need for your purchase, including sales tax?$

Answers

You want to purchase a blender for $47.99. The sales tax rate is 8.25%. How much money do you need for your purchase, including sales tax?

51.949175 = 51.95

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