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cestrela7 [59]
3 years ago
14

A truck driver drives 2,580 miles in 40 hours. He drives the same number of miles each hour. How many miles does he drive each h

our?
(answer and get 40 points
Mathematics
2 answers:
lana [24]3 years ago
5 0
64.5 miles is the answer for your question
Alinara [238K]3 years ago
3 0

Answer:

64.5 miles per hour.

Step-by-step explanation:

We know that the truck driver can drive 2580 miles in 40 hours. To get the miles per hour, we have to divide 2580 and 40, we will end up with a remainder.

Sice the answer has to be in miles, you need to convert the quotient and remainder into a fraction or decimal.

As a fraction: 64 1/2 miles

As a decimal: 64.5 miles

Hope this helps.

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At Brunswick Elementary school, 2/5 of six-grade students have at least one pet. If school has 181 sixth graders, about how many
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Answer: 72.4

Step-by-step explanation:

Fraction of six-grade students that have at least one pet = 2/5

Number of sixth graders at Brunswick Elementary school = 181

The number of sixth graders that own own pets will be:

= 2/5 × 181

= 72.4

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Which statement are true about the expression representing the area of the patio ?
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3 years ago
How to solve and respond.
son4ous [18]

Step-by-step explanation:

the error:

it is stated that

\frac{5x}{x+7} +\frac{7}{x} = \frac{5x}{x+7} +\frac{7(7)}{x+7}

subtract (5x)/(x+7) from both sides

\frac{7}{x}  = \frac{7(7)}{x+7}

multiply both sides by x + 7

7(x+7) = 49x

7x + 49 = 49x

subtract 7x from both sides to isolate x and its coefficient

49 = 42x

thus, this is only true when 49 = 42x. in order for these two equations to be equal, they must <em>always </em>be true, so this is wrong

the solution:

we want to express 7/x as (something) / (x+7). to do this, we can multiply 7/x  by 1.

anything divided by itself = 1. thus, if we multiply both the numerator and the denominator by something that turns x into (x+7), we can do what we want to do.

(x+7)/x * x turns x into (x+7), so we multiply both the numerator and denominator by (x+7)/x to get

\frac{7}{x} = \frac{7(x+7)/x}{x+7}

substitute this for 7/x in our original problem

\frac{5x}{x+7} +\frac{7(x+7)/x}{x+7} =  \frac{5x}{x+7} +\frac{(7x+49)/x}{x+7} = \frac{5x}{x+7} +\frac{7+49/x}{x+7} = \frac{5x+7+49/x}{x+7}

3 0
2 years ago
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