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xenn [34]
2 years ago
6

At the end of the quarter, sara knows she got a perfect score on 3 out of 7 of her history quizzes. How many total quizzes did s

he take during the quarter if she has 9 perfect scores?
Mathematics
1 answer:
Karolina [17]2 years ago
3 0

Answer:

11

Step-by-step explanation:

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The sum of two numbers is 42, and one of the numbers is 5 times the other. Find the two numbers.
PolarNik [594]

5x+x=42
6x=42
x=7
So the numbers are 7 and 35 (5*7)

8 0
2 years ago
Worth 20 points!!<br> Tell me an x, y ordered pair that is a solution for this equation. Y = 5x - 2
NISA [10]
These are three solutions
(0,-2)
(1,3)
(2,8)
8 0
2 years ago
20% tip if the bill is 48.25
baherus [9]
20% of 48.25
(20/100) * 48.25
(1/5) * 48.25
9.65

tip is 9.65
4 0
3 years ago
Can anyone help me by just saying <br> number 1,2,3,4,5 you have to show work
Artist 52 [7]
2(x - 5) = 110

2x - 10 = 110

Add 10 to both sides.

2x = 120

Divide by 2 on both sides.

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4 0
3 years ago
Kaylib’s eye-level height is 48 ft above sea level, and addison’s eye-level height is 85 and one-third ft above sea level. how m
GalinKa [24]

The addison see to the horizon at 2 root 2mi.

We have given that,Kaylib’s eye-level height is 48 ft above sea level, and addison’s eye-level height is 85 and one-third ft above sea level.

We have to find the how much farther can addison see to the horizon

<h3>Which equation we get from the given condition?</h3>

d=\sqrt{\frac{3h}{2} }

Where, we have

d- the distance they can see in thousands

h- their eye-level height in feet

For Kaylib

d=\sqrt{\frac{3\times 48}{2} }\\\\d=\sqrt{{3(24)} }\\\\\\d=\sqrt{72}\\\\d=\sqrt{36\times 2}\\\\\\d=6\sqrt{2}....(1)

For Addison h=85(1/3)

d=\sqrt{\frac{3\times 85\frac{1}{3} }{2} }\\d\sqrt{\frac{256}{2} } \\d=\sqrt{128} \\d=8\sqrt{2} .....(2)

Subtracting both distances we get

8\sqrt{2}-6\sqrt{2}  =2\sqrt{2}

Therefore, the addison see to the horizon at 2 root 2mi.

To learn more about the eye level visit:

brainly.com/question/1392973

5 0
2 years ago
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