MATHEMATICS MIDDLE SCHOOL

Louisa is 152.7 centimeters tall. Her younger sister is 8.42 centimeters shorter than she is. How tall is Louisa's younger sister?

Answers

Answer 1
Answer:

Answer: 144.28 centimeters

Step-by-step explanation:

The height of Louisa = 152.7 centimeters

The difference in Louisa and her younger sister =  8.42 centimeters

Therefore, the height of her younger sister =152.7-8.42 centimeters

Thus, the height of her younger sister = 144.28 centimeters

Hence, Louisa's younger sister is 144.28 centimeters tall.
Answer 2
Answer: 152.7-8.42= 144.28
Lousia's younger sister is 144.28cm tall.

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The height of a penny dropped from a 64-foot-tall bridge is modeled by the function h=-16t^2+64, where t is the time in seconds and h is the highest of the penny above the lake.Part AComplete the table of values below.
Time(s),t | 0 | 0.5 | 1 | 1.5 | 2 |
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Height (ft), h | 64 | | | | |
Please tell me how you do the whole things thank yoy

Answers

For a sec, I thought this was AB Calculus with derivatives and second derivatives but it isn't! That's a good thing!

Anyhow, all the problem is asking is to plug in the values of time to find the height.

We see when time is zero, the height is 64 feet. Plug in zero for the "t" variable and you'll get 64 feet.

When the penny has dropped for half a second or 0.5 seconds, we know the "t" variable and plug in that value.

h = -16(.5)^2 + 64.
h = -16(.25) + 64.
h = -4 + 64.
h = 64 feet when the penny has dropped for half a second.

I encouraged student progression when given the knowledge to complete a problem. We know how to complete the rest of the table. Good luck!

Please help me I beg really

Answers

I take it you want me to answer number eight? So, start with the side being twice the width- this is represented as 2x. Then, right before that, the problem states two more than- this is represented as +2. Your final equation should be 2x+2

Ingrit is buying a $97 coat. It is on sale for 30% off. What is the sale price of the coat?

Answers

Answer:

67.9 U.S. dollars

Step-by-step explanation:

Answer: 67.90 dollars

========================================

Work Shown:

30% = 30/100 = 0.30

Take 30% of 97 to get 0.30*97 = 29.10

So Ingrit saves $29.10

The sale price is 97.00 - 29.10 = 67.90

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Here's another way to get the answer:

The discount is 30% which means she saves 30% and pays the remaining 70% (since 30% + 70% = 100%)

70% = 70/100 = 0.70

Take 70% of the original price and you'll get the sale price

0.70*97 = 67.90

Solve 247 divided by 10(^2) . and 247x10 (^2)

what's different about the two answers?

Answers

247 divided by 10^2 is 2.47 and 247 times 10^2 is 24,700

How do you do number 8

Answers

you have to follow the order of operations. parentheses comes first. solve 5n * 9. you get 45n. take that and multiply it with 2n. you will get 90n as the answer.

A trapezoid’s longer base is three times the length of its shorter base. If the trapezoid has an area of 32 square feet and a height of 4 feet, what is the length of each base?

Answers

Answer:

longer base: 10 2/3

shorter base: 5 1/3

Step-by-step explanation:

you first take 32 divided by 4 and then multiply that by 2 and you get 16 and then you divide that by 3 and you get 5 1/3 but then the longer one is 5 1/3 plus 5 1/3 (i hope that makes sense)

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