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aliya0001 [1]
3 years ago
9

On monday, it took helen 3 hours to do a page of homework. the next day she did the same number of exercises in 2 hours. if her

average rate on monday was P exercises per hour, what was her average rate the next day in terms of P
please don't just answer, explain HOW to set up equation
Mathematics
1 answer:
g100num [7]3 years ago
5 0
The average rate is the number of equations divided by the time to do them.

The number of equations is the rate multiplied by the time.

On Monday, the number of equations is
.. number = rate*time = P*3
On Tuesday, the rate is
.. rate = number/time = (3P)/2 . . . . . Helen's average rate on Tuesday
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Vikki [24]

The volume of the box is 100 cubic meter.

Step-by step explanation:

Given data:

Length of the box = 10 m

Width of the box = 5 m

Height of the box = 2 m

<u>To find the volume of the box:</u>

Volume of the box = length × width × height

                               = 10 m × 5 m × 2 m

                               = 100 cubic meter

Hence the volume of the box is 100 cubic meter.

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3 years ago
If x varies directly as y, and x=12 when y=3, find x when y=7
Stella [2.4K]

Answer:

28

Step-by-step explanation:

x=12 and y=3

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x=28 and y=7

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3 years ago
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8 0
2 years ago
(FIRST PERSON TO ANSWER GETS BRAINLIEST!!!) A student earned $2500.75 at his summer job making $12.50 per hour. Let h represent
laiz [17]

<u>Answer:</u>

12.50 \space\ h = 2500.75

<u>Step-by-step explanation:</u>

We know from the question that the student earned $12.50 <em>per hour</em>.

Using this information, we can say that if the student worked for <em>h </em>hours, they would make a total of 12.50 × <em>h </em>dollars.

We also know that the total money they earned is $2500.75.

∴ Therefore, we can set up the following equation:

\boxed {12.50 \times h = 2500.75}

From here, if we want to, we can find the number of hours worked by simply making <em>h</em> the subject of the equation and evaluating:

<em>h </em>=<em> </em>\frac{2500.75}{12.50}

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5 0
2 years ago
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Consider the following data: x −4−4 −3−3 −2−2 −1−1 00 P(X=x)P(X=x) 0.20.2 0.30.3 0.10.1 0.20.2 0.20.2 Copy Data Step 4 of 5 : Fi
AysviL [449]

Answer:

P(x\geq -1) = 0.4

Step-by-step explanation:

We are given the following in the question:

x:                −4       −3       −2      −1       0

P(X=x):        0.2      0.3      0.1     0.2     0.2

We have to evaluate

P(x\geq -1)

Since it is a discrete probability distribution as

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We can evaluate the probability as:

P(x\geq -1) = P(x = -1 + P(x = 0)\\P(x\geq -1) = 0.2 + 0.2\\P(x\geq -1) = 0.4

Thus, 0.4 is the require probability.

4 0
3 years ago
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