MATHEMATICS HIGH SCHOOL

A hybrid car can travel 40 miles per gallon. Approximately how many gallons of fuel will the car need to travel 20 km?A. 0.3
B(wrong. already eliminated that off) 0.8
C. 2.5
D. 3.2

Answers

Answer 1

Answer:

Answer:

its 0.3

Ye i solved this a different way

so in order to see how many 20km of gas is needed, we first need to see how many miles thats worth.

1 mile = 1.6km

1.6 goes into 20, 12.5 times

12. 5 is our magic number. Now we take 12.5 and divide it by 40 and not the other way around.

now we're left with 0.3

voila it"s done, hope this simplifies this s bit, have a nice day

Step-by-step explanation:

Answer 2

Answer: so converting miles to km, you get 1mile=1.6km. 20km=12.5miles

if 1 gallon gets you 40 miles, then x gallons will get you 12.5 miles., Solve for x, x=12.5/40=0.3125.

Answer should be A

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The measure of angle BAC is 77 and the measure of angle ACD is 127, what is the measure of angle ABC?

Answers

Answer:

The measure of angle ABC is 50°

Step-by-step explanation:

step 1

Find the measure of angle ACB

we know that

∠ACB+∠ACD=180° ----> by supplementary angles

see the attached figure to better understand the problem

∠ACB=180°-127°=53°

step 2

Find the measure of angle ABC

we know that

The sum of the interior angles of a triangle must be equal to 180 degrees

∠ABC+∠ACB+∠BAC=180°

substitute the given values

∠ABC+53°+77°=180°

∠ABC=180°-130°=50°

The fraction 16/20 is written as 5/8 in simplest form.

True
False

Answers

4/5 if you simplify 16/20

What is the simplist form of 240/1000

Answers

Divide by 100 to reduce it to 24/100

Now divide by 4 to get 6/25

The simplest form is 6/25

Maria and nina each ordered a small pizza. maria ate 3/8 of her pizza. Nina ate 3/6 of her pizza. Who ate more pizza?

Answers

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How do i solve 7x-y=21

Answers

it is 3 because we multiply 3 and 7 and we get 21

The answer answer is actually -3 because you divided 7 from 21 and you get 3 then you divided -1 because the y has a negative sing on it and you want it to be positive. That is why the answer is -3

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