3 years ago

You need to solve a system of equations. You decide to use the elimination

Mathematics

1 answer:

denis-greek [22]3 years ago

4 0

Answer:

it is c it is c it is c it is c

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If f(x) = 3x – 2 and g(x) = 6 – 4x, find f(x) + g(x)

Marizza181 [45]

$f(x)+g(x)=3x-2+6-4x=-x+4$

7 0

4 years ago

The ratio of girls to boys in Liza’s classroom is 5 to 4. How many girls are in her classroom if there is a total of 27 students

andrezito [222]

Answer:

$15\ girls$

Step-by-step explanation:

Let

x-----> the number of girls

y-----> the number of boys

we know that

$x+y=27$ -----> equation A

$\frac{x}{y}=\frac{5}{4}$

isolate the variable y

$y=\frac{4}{5}x$ -----> equation B

Substitute equation B in equation A

$x+\frac{4}{5}x=27$

$\frac{9}{5}x=27$

$x=5*27/9=15\ girls$

3 0

3 years ago

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I need help ASAP Also I need to show work on it because it is for my homework

Bezzdna [24]

Answer:4.5

Step-by-step explanation:

3 0

3 years ago

I WILL MARK BRAINLIEST Twelve is added to a number and then the sum is multiplied by 4/5 to give 23.6. What is the number?

Aliun [14]

Answer: 17.5 or 35/2

Step-by-step explanation:

(If you change 4/5 to a decimal, it makes this easier. 4/5 would be 0.8.)

23.6 = (12 + x)*0.8

23.6 = 9.6 + 0.8x

14 = 0.8x

17.5 = x

17.5 as an improper fraction would be 35/2.

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3 years ago

Are the points A and I collinear? B o M R

dusya [7]

Answer:

Step-by-step explanation:

To be collinear they must be on the same line which they are not.

5 0

3 years ago

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