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ziro4ka [17]
3 years ago
11

In a high school, 7% of the students play the piano. This is 21 students. Choose the expressions that complete each step involve

d in setting up and solving the proportion that represents the situation.
Set up a proportion:

Cross multiply:
Mathematics
1 answer:
Gnesinka [82]3 years ago
7 0

Hello,

<u>Set up a proportion</u> :

7 → 21

100 → ?

<u>Cross multiply</u> :

100 * 21 / 7 = 300 students

Bye :)

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∆ABC is isosceles, AB = BC, and CH is an altitude. How long is AC, if CH = 84 cm and m∠HBC = m∠BAC +m∠BCH?
son4ous [18]
I think I could help you
Have fun and feel free to ask me something new.
Or we can prove some properities without calculating by details

3 0
3 years ago
A community center rents their hall for special events. They charge a fixed fee of $200 plus an hourly fee of $22.50. Lin has $3
Karo-lina-s [1.5K]

Answer:

No, 6 hours would cost $335, 35 over her limit of $300.

Step-by-step explanation:

she has to pay $200 plus 22.50 for every hour she rents. So, if she rents for 6 hours, she has to pay $200 + 6(22.50) or $200 + 135=335. She only has $300 so she can’t afford the event.

3 0
3 years ago
Determine the height of the can of beans(cylinder) given the volume of the
jeka94

Answer:

4 in(a)

Step-by-step explanation:

height-?

volume-314

radius-5

pie-22÷7 or 3.14

volume= πrsquared h

314=3.14×5×5×h

314= 78.5h

314÷78.5

= 4 in

8 0
3 years ago
Mark makes $60 for every six hour shift he works. How much will he make if he works an eight hour shift
Illusion [34]

Answer:

Mark will make $80 if he works an eight-hour shift.

Step-by-step explanation:

For every six hour shift he works, Mark makes $60

This implies that for every hour, he makes $10 ($60/6)

Therefore, for working an eight-hour shift, Mark will make $80 ($10 * 8) or ($60/6 * 8).

We can conclude that Mark's employer pays him $10 per hour.

This hourly rate can be used to work out how much Mark will earn if he works for a month or a year, as the case may be.

7 0
3 years ago
Given the following perfect square trinomial, fill in the missing term. <br><br> x2 − 16x + ____
pychu [463]
The pattern is:
( a - b )² = a² - 2 a b + b² ( square of last term of binomial - the missing term)
x² - 2 · 8 · x + 8² = x² - 16 x + 64 = ( x - 8 )²
The missing term is: 64
6 0
3 years ago
Read 2 more answers
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