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pishuonlain [190]
3 years ago
7

Harold took 5 hours to paint 3 same-sized walls. If he works at the same rate, how long will it take him to paint 18 walls of th

e same size?
Mathematics
2 answers:
Vika [28.1K]3 years ago
6 0

Answer:It will take Harold 30 hours to paint all 18 of the walls

Step-by-step explanation:Your multiplying the amount of walls he is painting by 6 so you do the same to the amount of hours he is painting

Mademuasel [1]3 years ago
4 0

Answer:

30 hours

Step-by-step explanation:

We can use ratios to solve

5 hours        x hours

-------------- = -------------

3 walls          18 walls

Using cross products

5*18 = 3x

Divide each side by 3

5*18/3 = 3x/3

30 =x

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5/7 = y/6<br> Solve the following proportion for y<br> Round your answer to the nearest tenth
RUDIKE [14]

Answer:

The value of y = 4.3

Step-by-step explanation:

It is given that,

5/7 = y/6

<u>To find the value of y</u>

We have, 5/7 = y/6

(5 * 6) = (y * 7)

y * 7 = 5 * 6

y = (5 * 6)/7

 = 30/7

 = 4.29

 ≈ 4.3

Therefore the correct answer, the value of y = 4.3

4 0
3 years ago
The factors of 35, 48, and 60 are listed below. Two of these numbers are relatively prime. Click the two numbers that are
Nostrana [21]

Answer:

35 and 48

Step-by-step explanation:

4 0
3 years ago
PLEASE HELP<br> Find the range of f(x) = -3x + 2 for the domain {-3, 1, 2,5}.
Anastasy [175]

Answer:

range = {11,-1,-4,-13}

Step-by-step explanation:

domain is "input" range is "output"

just "plug" {-3, 1, 2,5} into -3x + 2 one at a time

5 0
3 years ago
Which number is an integer? 1, 0.5, 3/2
aksik [14]

An integer is any whole number (not fractions) that can be either negative or positive.

1 is the only integer because 0.5 and 3/2 are not whole numbers and are fractions, while 1 is a whole number.

7 0
3 years ago
Can someone plsss help me
balu736 [363]

Answer:

y = -5/3 x + 40

Step-by-step explanation:

The general form is y = ax + b, where a is the slope and b is the y intercept.

So immediately you can see that b must be 40, since the line crosses the y axis at 40.

The slope can be calculated by finding two "nice" points on the line that are also grid lines.

How about (0,40) and (6, 30).

Then, calculate the slope by dividing the y difference by the x difference:

(30-40)/(6-0) = -10/6 = -5/3

So C must be the answer.

6 0
2 years ago
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