3 years ago

Can someone explain what the answer is? Or just tell me either is fine. =)

Mathematics

1 answer:

Anna11 [10]3 years ago

6 0

Answer:a=-4,000

Step-by-step explanation:

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Robert and Chris can skate 4 miles in 18 minutes. How far can they ride in 45 minutes?

adell [148]

Answer: Robert and Chris can skate 10 miles in 45 minutes.

Step-by-step explanation:

Let's start by finding the unit rate.

$\frac{4}{18} =\frac{2}{9} \\\frac{18}{18} =1$

Robert and Chris can skate $\frac{2}{9}$ of a mile in 1 minute. Now we can multiply both by 45 to see how far the can go in 45 minutes.

$(\frac{2}{9}) (\frac{45}{1} )\\\frac{(2)(45)}{(9)(1)} \\\frac{90}{9} \\10$

45x1=45

The can skate 10 miles in 45 minutes.

6 0

3 years ago

Bryson’s dad is 38 years old. If this is four years less than three times Bryson’s age, how old is Bryson?

klemol [59]

Answer:

Bryson’s age is 14 years

Step-by-step explanation:

Let

x ----> Bryson’s age

we know that

Bryson’s age multiplied by 3 minus 4 must be equal to 38

The linear equation that represent this situation is

$3x-4=38$

solve for x

Adds 4 both sides

$3x=38+4$

$3x=42$

Divide by 3 both sides

$x=14$

therefore

Bryson’s age is 14 years

7 0

4 years ago

Can someone please answer all the questions with explanations?

aalyn [17]

Answer:

I don't know sorry can't help you

6 0

3 years ago

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A newspaper for a large city launches a new advertising campaign focusing on the number of digital subscriptions. The

JulijaS [17]

Answer:

why does it say answer doesn't exist but still lemme put a answer

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3 years ago

Drag each interval to a box to show if the function shown is increasing, decreasing, or neither over that interval.

prisoha [69]

Answer:

Increasing

−5<x<−1

−1<x<1

Decreasing

4<x<7

−8<x<−5

Neither Increasing nor Decreasing

1<x<4

Step-by-step explanation:

8 0

3 years ago

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