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3 years ago

Can someone help me with this question :)

Mathematics

1 answer:

Lesechka [4]3 years ago

5 0

Answer:

i dont understand

Step-by-step explanation:

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Driving to your friend's house, you travel at an average rate of 35 miles per hour. On your way home, you travel at an average r

kenny6666 [7]

Answer:

14 miles

Explanation:

The relation that will be used to solve this problem is:

$Distance = Velocity*Time$

which can be rewritten as:

$Time = \frac{Distance}{Velocity}$

Assume that:

Distance from your house to your friend's house is d

Time taken from your house to your friend's house is t₁

Time taken from your friends house to your house is t₂

1- From your house to your friend's house:

Average rate = 35 miles/hour

Therefore:

$t_{1} = \frac{d}{35}$

2- From your friend's house to your house:

Average rate = 40 miles per hour

Therefore:

$t_{2} = \frac{d}{40}$

3- Round trip:

We know that the round trip took 45 minutes which is equivalent to 0.75 hours

This means that:

t₁ + t₂ = 0.75 hours

$\frac{d}{35}+\frac{d}{40}=0.75\\ \\\frac{40d + 35d}{1400}=0.75\\ \\\frac{75d}{1400}=0.75\\ \\ 1050 = 75d\\ d=14 miles$

Hope this helps :)

3 0

4 years ago

Solve this inequality: 8z + 3 - 2z < 51

slava [35]

Answer:

9x+4<m

Step-by-step explanation:

7 0

3 years ago

The radius of a circle is 4 inches what is the circles diameter

Leokris [45]

Answer:

The diameter of the circle is 8 inches

Step-by-step explanation:

The diameter is 2 times the radius

5 0

3 years ago

Read 2 more answers

What is it a ,b,c,or D can I get a step by step explanation

ANEK [815]

The answers are b and c. Plug in -4 for x and solve each option

2(-4) -8 = 0. 0 does not equal 1
3(-4) +8 = -4
1/2 * -4 + 3 = 1, -4+5 = 1
2(1- -4) = 10, -4 + 2 = -2

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4 years ago

Identify the domain and range of the relation. Represent the relation with a

cestrela7 [59]

Hey, im not sure if its correct or not, but here!

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4 years ago