2 years ago

Maria correctly answered 16 of the 20 questions. What fraction of the questions did she answer correctly?

Mathematics

1 answer:

densk [106]2 years ago

3 0

16/20
Simplified to 8/10
Again simplified to 4/5.

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I think it is the 2nd one.

lutik1710 [3]

125 and 8 are perfect cubes.
125 = 5^3
8 = 2^3

125 - 8 = 5^3 - 2^3

3 0

2 years ago

Write an equation of the line that passes through (5, −1) and is perpendicular to the line y=12x−1.

Lisa [10]

Step-by-step explanation:

solution

let,A(5,-1)

given

y=12x-1

or, y = 12 × x + (-1)

comparing it with y=mx+c

we get

x=1

y = c = -1

now

A(5,-1) and B(1,-1)

equation of line is,

(y-y1)/(x-x1) = (y2-y1)/(x2-x1)

or, (y+1)/(x-5) = (-1+1)/(1-5)

or, (y+1)/(x-5) = 0/-4

cross multiply

-4y-4 = 0

or, 0=4y+4

or, 4y+4=0 is the required eqn

I think this is the process and answer too.

I hope this helps you

4 0

2 years ago

can yall pls help me with this, it isn't that hard but i need to know how to solve it in steps and in how to narrow it down, ty.

marin [14]

Answer:

$\frac{times}{days}$ = $\frac{20}{5}$ = $\frac{m}{30}$

you need to be consistant when setting up the proportions. The times always need to be on top and the days needs to always on bottom.

Cross multiply and solve for the variable.

20(30) = 5(m)

600 = 5m

120 = m

So, in 30 days the theatre showed 120 movies.

4 0

2 years ago

Read 2 more answers

Jacob earns $300 per week plus $50 for every car he sells. How many cars will he need to sell this week to earn a total of $700

Alex Ar [27]

Answer:

He would sell 14 cars.

Step-by-step explanation:

Hope this helps

3 0

2 years ago

The sum of two numbers is 24 their difference is 15 what are the two numbers

Georgia [21]

19.5 and 4.5, as 19.5 + 4.5 = 24 and 19.5 - 4.5 = 15.

6 0

2 years ago