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KiRa [710]
4 years ago
7

Over four evenings, Ms.Cross grades 6 papers, 8 papers, 9 papers, and 7 papers. She wants to grade an average of 9 papers a nigh

t. What would be a reasonable estimate of how many papers Ms.Cross must grade on the fifth day to reach that goal?
A)11
B)15
C)18
D)19
Mathematics
1 answer:
cupoosta [38]4 years ago
7 0
The answer would be 15. The average of 6, 7, 8, 9, and 15 is 9. Hope this helps.
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A line is represented by the equation 2x + 3y = 15. What is another way to represent the same line, for solving Y ? Help is need
Lady bird [3.3K]

The another way to represent the same line, for solving y will be:  y= 5-\frac{2}{3}x

<u><em>Explanation</em></u>

Given equation of the line is:  2x+3y=15

"Solving y" means <u>we need to get</u> y <u>alone in left side.</u> So, we will eliminate all other terms except y from the left side.

First we will <u>subtract 2x </u>from both sides. So, we will get......

2x+3y-2x=15-2x\\ \\ 3y=15-2x

Now, we will <u>divide both sides by 3</u> for getting y alone. So.....

\frac{3y}{3}= \frac{15-2x}{3}\\ \\ y= 5-\frac{2}{3}x

Thus, the another way to represent the same line, for solving y will be:  y= 5-\frac{2}{3}x

7 0
4 years ago
A sample of 184 light bulbs contained 6 defective bulbs, at this rate ,how many defective bulbs would you expect to find in a sa
givi [52]
184 x 7 = 1288
7 x 6 = 42
so you have 42 <span>defective bulbs</span>
4 0
3 years ago
When evaluating proportions, we write the ratios in fractional form and then we ________________.
soldi70 [24.7K]
Set the cross products equal
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4 years ago
Find the volume of the entire figure to the nearest whole number. Use 3.14 for Pi.
Alja [10]

Answer:

1733.28 m³ or approximately 1733 m³

Step-by-step explanation:

Cone - 1/3πr²h

Cylinder - πr²h

Cone - 1/3(3.14)(6)²(10) ⇒ 376.8

Cylinder - (3.14)(6)²(12) ⇒ 1356.48

1356.48 + 376.8 = 1733.28 m³

Approximately 1733 m³

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4 years ago
F(x) = 4x + 3 for f(-8).
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Answer:

-29

Step-by-step explanation:

plz brainliestt

6 0
3 years ago
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