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3 years ago

5

If 60% of the students in the classroom have a pet at home. If 15 students have a pet, what is the total number of students in t

he classroom?

1 answer:

torisob [31]3 years ago

3 0

There are 25 students in the classroom

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a right triangle has legs measuring 20 in. and 28 in. what is the length of the hypotnuse? round to the nearest tenth.

lora16 [44]

Let Hypotenuse be x

X² = 20² + 28²

x² = 400 + 784

$\tt x= \sqrt{400 + 784 }$

$\tt x= \sqrt{1,184}$

$\tt x= 34.4$

7 0

2 years ago

Read 2 more answers

Can u help me answer this I’m so stuck

Slav-nsk [51]

Answer:

I learned a great formula for repeating decimals.

OK! Let's get started. For each decimal spot that is recurring, it is put over a 9, rather than a 10.

In your case, 0.142 would be 142 over 3 9s.

142/999 cannot be simplified.

Therefore, 142/999 is our answer.

Since the repentant is over only one digit, we have to solve another way.

We can represent it as "x"

10x = 5.66.... - x = 0.56.....=5.1

9x = 51/10

51/10/9 = 51/90 = 17/30 as our answer.

We can solve this next one the same way:

100x = 3.44444 - x = 3.41

999x = 341/100

341/100/999 = 31/900 as our answer.

Now! 1.52 can be solved the same way.

In doing so, we achieve the answer 151/99 as our answer

This one can be done the same way as well. I'll give you the answer, but next time try to solve it for yourself!

179/495 is our answer.

Now, you asked for 0.004 as a fraction.

That is equivalent to 4/999 as our answer.

Note: This is because each 0 can be counted as a 9, increasing in order. (i.e., over 100 is over 99 over 1000 is over 999 over 10 9)

6 0

3 years ago

Please help I’m really confused

Zina [86]

Answer:

yooooooooooooo i don't noooooooooooooooooooooooo

Step-by-step explanation:

6 0

3 years ago

alex41 [277]

A) 5/2x^3-9/4x^2+7/2x-3/2
b) the ans. are not the same.

8 0

3 years ago

The length L of a rectangle is 4 units more than its width W. The rectangle's are is 252 square units. A) Write the equation tha

jek_recluse [69]

Answer:

w=14

l=18

Step-by-step explanation:

To find the dimensions, create an equation for its area and solve for each using the area formula A = l*w. The dimensions given are A = 252, w for width and l= w+4 (4 more than the width).

$A = l*w\\252 = (w+4)*w\\252 = w^2+4w\\252+4 = w^2 +4w +4\\256 = (w+2)^2\\\sqrt{256} =\sqrt{(w+2)^2} \\16 = w+2\\16 = w+2\\14= w\\$

The width is 14 so the length is l=w+4 or l= (14)+4 =18

3 0

3 years ago