MATHEMATICS MIDDLE SCHOOL

Given ~ and AB = 20, CA = 8, and US = 9, what is ST?
Does anyone know?

Answers

Answer 1
Answer: ST would be 22.5. 
Assuming ΔABC and ΔSTU are similar, they have to be proportional, so you could create a proportion to figure it out: 8/20=9/? (if you need to know how I got that, message me). Then you could cross multiply. 9x20 is 45, so that means that the measure of ST times 8 has to equal 45. If you divide 45 by 8, you get 22.5, so that makes the measure of ST 22.5.
(Sorry if that was confusing, I can always take a picture of my work if you need further explanation)

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Simplify each expression

2x+5y+7x=

Answers

you add 2x and 7x to get 9x
so the answer is 9x+5y

Mixed numbers between 0 and two with an interval of one third between each pair of mixed numbers

Answers

mixed numbers are fractions that are greater than 1 so exg 8 and 3/4

between0 and 2 that means not including 0 or 2
start at >1 because mixed numbers must be greater tahn 1
2 examples are
1 and 1/3
1 and 2/3

How many tenths are in 15.03

Answers

There are 10 "tenths" in one whole number.

15 --> 15 whole numbers --> 15 * 10 = 150 --> 150 tenths

0.03 --> 3 hundredths --> 10 hundredths = 1 tenth --> 3/10 tenth

150 3/10 tenths in 15.03

Is 1.5 greater than or less than 1

Answers


1.5 is greater than 1 since the decimal 1.5 = 1 +0.5 and 1= 1

compared: 1+0.5, 1
1.5 is greater than 1.
Cause 1.5= 1 + 0.5 . which is greater than 1.

Is 17/8 greater or less than 9/4

Answers

17/8 is less than 9/4 because if you turned 17/8 and 9/4 into a mixed number  you would get 2 and 1/8 for 17 /8 and 2 1/4 for 9/4
Another easy way to do this multiply 17x4=68 then do the same with 9x8=72 so 72 is bigger so 9/4 is bigger it's called cross multiply hope this helps

10% of what number is 14?

Answers

x=(14)/((10)/(100))=14*10=140

The number that 14 is 10% of is 140.

Here, we have,

To find the number that 14 is 10% of, we can use the concept of finding 10% of a number.

Let's denote the number we are looking for as x.

To calculate 10% of a number,

we multiply the number by 0.10 (which is the decimal form of 10%).

In this case, we have:

0.10x = 14.

To solve for x, we divide both sides of the equation by 0.10:

x = 14 / 0.10.

Simplifying:

x = 140.

Therefore, the number that 14 is 10% of is 140.

To learn more on percentage click:

brainly.com/question/13450942

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