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Lina20 [59]
3 years ago
14

How do I do 21? (Will mark brainlest for explaining)

Mathematics
1 answer:
Maslowich3 years ago
6 0
Let's say the number is x
75%of x is 15
75%x=15
0.75x=15
x=15/0.75
x=20

or you can say 3/4x=15
x=15*4/3
x=20
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Hi, I need help pls! (screenshots included)
mestny [16]

8. a = s*s

144 = s^{2}

\sqrt{144} = \sqrt{s^2}

12 = s

5 0
2 years ago
A car travels 294 miles on a full tank of gas. The car's gas tank holds 14 gallons. How many yards per gallon can this car trave
sattari [20]
294 / 14 = 21 miles per gallon
21 * (5280 ft per mile / 3 yards per foot) =
36,960 yards per gallon

4 0
3 years ago
The table shows how much money Edguardo earns as a golf coach. He charges a flat fee of $38, plus $22 per hour. Complete the tab
Vesnalui [34]
Let's re-read the statement and question, and then break it down.
He charges a flat fee of $38, plus $22 per hour.
A flat fee of $38 is only a one-time pay, and will never be paid for again.
This means if after two hours, we only add $38 once overall, never more.
Every hour that goes by, he earns $22 each hour.
Now that we've broken this down, we can make an equation.
Let's do 1 hour.
1(22) + 38 = 22 + 38, = 60.
For 1 hour he earns $60.
Let's do 2 hours.
2(22) + 38 = 44 + 38, = 82.
For 2 hours he earns $82.
Let's do 3 hours.
3(22) + 38 = 66 + 38, = 104.
For 3 hours he earns $104.
Let's do 4 hours.
4(22) + 38 = 88 + 38, = 126.
For 4 hours he earns $126.
This is a pattern.
Now let's do 8 hours, which is the main question, "How much does he make in 8 hours?".
8(22) + 38 = 176 + 38, = 214.
For 8 hours he earns $214.
I hope this helps!
4 0
3 years ago
Read 2 more answers
Write an equation of each line in point-slope form. containing (2,1) and (3,4)
Leokris [45]

Answer:

y=3x-5

Step-by-step explanation:

This is the only line that will pass through these points.

7 0
2 years ago
(7-b)+(3b+2)+(7-b)+(3b+2)<br><br><br><br> Plz help me out I’m a lil stressed out with school
ankoles [38]

Answer:

4b+18

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
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