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3 years ago

Johnny took the math test and got 20 out of 25 qustions correct; what grade did Johnny make on the test?

Mathematics

2 answers:

Fudgin [204]3 years ago

6 0

Answer: I believe the answer is B

Step-by-step explanation:

If you divide your score by the total number of points, then multiplying by 100 it will give you the answer. So 20 divided by 25 is 0.8, multiplied by 100 gives you 80%

Hope this helps! :D

meriva3 years ago

5 0

Answer:

B: 80%

Step-by-step explanation:

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Pls help me!!!!! :)

swat32

Answer:

it would be slope intercept then it would be y=mx+b

Step-by-step explanation:

go to a graph find (-5,4) then graph it on the chart then use y=mx+b

6 0

3 years ago

A bicycle is traveling at 22 miles per hour. How many feet will it cover in 45 seconds? Round your answer to the nearest tenth o

puteri [66]

Answer:

1452 feet

Step-by-step explanation:

1 hour = 60min×60sec = 3600 sec

1 miles = 5280 feet

22 miles = 22×5280ft = 116160 ft

3600sec ................. 116160 ft

45sec ................................ x ft

x = 45×116160/3600

= 5227200/3600

= 1452 feet

7 0

3 years ago

factor 3a^5-18a^3+6a^2, I know the answer is 3a^2(a^3-6a+2) but I am so lost on how to get the factor of 3a^2..How in the world

rusak2 [61]

Answer:

$\huge\boxed{3a^2(a^3-6a+2)}$

Step-by-step explanation:

$\sf 3a^5-18a^3+6a^2\\\\HCF = 3a^2\\\\Take \ 3a^2 \ common\\\\= 3a^2(a^3-6a+2)\\\\\rule[225]{225}{2}$

Hope this helped!

5 0

3 years ago

Elementary Algebra Skill

mr_godi [17]

The answer is a = $\frac{4}{-3}$

Step-by-step explanation:

1. Convert the mixed fraction to an improper fraction

To find the numerator, multiply the denominator by the whole number and add the numerator to it.

The denominator remains the same.

So, 2 $\frac{2}{3}$ will be $\frac{8}{3}$

2. Now the equation is,

$\frac{3}{2}$ a - $\frac{4}{3}$ a = $\frac{10}{3}$ + $\frac{8}{3}$ a

3. Take LCM on both sides.

For the left side, multiply the first fraction by $\frac{3}{3}$ and multiply the second fraction by $\frac{2}{2}$

$\frac{3*3}{2*3}$ a - $\frac{4*3}{3*3}$ a = $\frac{10+8a}{3}$

4. Solve by making a the subject

$\frac{9a-8a}{6}$ = $\frac{10+8a}{3}$

$\frac{a}{6}$ = $\frac{10+8a}{3}$

$\frac{3a}{6}$ =10+8a

$\frac{a}{2}$ = 10 + 8a

a = 2(10 + 8a)

a = 20 + 16a

a-16a = 20

-15a = 20

a = $\frac{20}{-15}$

a = $\frac{4}{-3}$

Therefore, the answer is a = $\frac{4}{-3}$

Keyword: Equations

Learn more about equations at

#LearnwithBrainly

4 0

3 years ago

A soccer player has a limit of 700 calories in a sandwich and chips meal. The sandwich is 464 calories and each chip is 7 calori

Blababa [14]

Answer:

33 chips

Step-by-step explanation:

c= (700 - 464) ÷ 7 = 33

She can use 33 chips or less. I less cause she shouldn't eat too much calories.

8 0

3 years ago

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