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3 years ago

I need help with this If right

Mathematics

2 answers:

Ber [7]3 years ago

5 0

Answer:

$10^0$

Step-by-step explanation:

the sum of all angles should add to a straight line, a straight line has an angle of 180 so add 92 and 78 subtracting the total from 180

$92+78=170\\180-170=10\\answer =10^0$

Anuta_ua [19.1K]3 years ago

4 0

Answer:

14° I think sorry if its wrong this was quick one

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The question is in the photo/image

Lina20 [59]

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3 years ago

Given the following system of equations: −x + y = 2 2x + 4y = 32 What action was completed to create this new equivalent system

tiny-mole [99]

Answer:

you just need to devide by 2 the second equation

Step-by-step explanation:

-x + y = 2 (you leave it as it is)

2x + 4y =32 => 2x/2 +4y/2 = 32/2

=> x + 2y =16

we can devide or multiply in an equation by any number we want, as long as we do it to every term.

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3 years ago

Read 2 more answers

At an university 70% of the students who attend stay on campus. If 1,380 of the students who attend live off campus, what is the

Alborosie

Answer:

4600

Step-by-step explanation:

We can write a proportion to find the total amount who attend university using the information given. A proportion is two equivalent ratios set equal to each other. Since 70% live on campus, then 30% live off campus and we are told that number is 1,380.

$\frac{30}{100}=\frac{1380}{y}$

We will cross multiply the numerator of one ratio with denominator of the other. And then solve for y.

30y=100(1380)

30y=138000

y=4600.

There are 4600 students who attend the university.

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3 years ago

Which of the following graphs represents a line that is parallel to the line y = - 1/3x - 2?

aalyn [17]

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3 years ago

What is the standard deviation of the following set of data

Yuki888 [10]

Answer:

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Step-by-step explanation:

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