MATHEMATICS MIDDLE SCHOOL

An eastbound car is going 4 miles per hour faster than an westbound car. The cars are 208 miles apart 2 hours after passing each other on a highway. what is the speed , in miles per hour , of the eastbound car ?

Answers

Answer 1

Answer:

Answer:

speed of westbound car= 50 miles/hour

speed of eastbound car = 50 + 4 = 54 miles/hour

Step-by-step explanation:

Let the speed of westbound car = x

According to given scenario, speed of eastbound car will be = x + 4

Now

Distance given = 208 miles

Total time = 2 hours

As both cars pass each other so by using the formula beloe:

Speed of both cars = Distance / Time

x + (x + 4) = 208 / 2

2x +4 = 104

Subtracting 4 from both sides

2x = 104 - 4

2x = 100

Dividing both sides by 2

x (speed of westbound car)= 50 miles/hour

x + 4 (speed of eastbound car) = 50 + 4 = 54 miles/hour

i hope it will help you!

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Solve equation 19 - h - h = -13

Answers

Answer:

h = 16

Step-by-step explanation:

to solve this equation

we are going to take cognizance of the positive and negative sign as any misinterpretation of the sign might influence our answer wrongly. Note this

negative × negative = positive

positive × negative = negative

negative × positive = negative

positive × positive = positive

so, from the question 19 - h - h = -13

19 - h - h = -13

19 -2h = -13

collect the like terms

19 + 13 = 2h

32 = 2h

divide both sides by the coefficient of h which is 2

32/2 = 2h/2

16 = h

therefore h = 16

Why are the equations w - x + x = w and w + x - x = w called identities?

Answers

They are indentical because the only thing that switched was the addition sign, and subtraction sign. If you look closely.

Identities have the same solution, and they are also called 'infinities'. That is because they include many solutions.

What is 18/30 reduced to

Answers

18/30, is reduced to 9/15 then 3/5.

9/15 first, because 18 and 30 are both divisible by 2.

18÷2=9 and 30÷2=15.

Then how I got 3/5, was because both 9 and 15 are divisible by 3.

9÷3=3 and 15÷3=5 so the final answer that you are looking for, is 3/5.

Answer: 3/5

Step-by-step explanation: In order to write the fraction 18/30 in lowest terms, we divide the numerator and the denominator by the greatest common factor of 18 and 30 which is 6.18 divided by 6 is 3 and 30 divided by 6 is 5 so 18/30 written in lowest terms is 3/5.

How do u divide 34.4 by 4 and show your work.

Answers

34.4 ÷ 4 = 8.6, which 8.6 as a fraction is 43/5

A meteorite found in United States weighs 7/10 as much as one found in Mongolia. The meteorite found in Mongolia weighs 22 tons. How much does the meteorite found in United States weigh?