3 years ago

[y = 4x] [x + y = 5]

1 answer:

alexandr1967 [171]3 years ago

5 0

X=1, y=4

Substitute 4x in for y in the second equation and you get 5x=5. Divide out 5 and you get x=1. Then, you can plug 1 in for x into either equation and solve for y.

You might be interested in

Evaluate 6(x-4) + 10 if x= 7 A.28 B.76 C.18 D.13

kupik [55]

6(7-4)+10

First distribute 6 into the parentheses

42-24+10= 28

So your answer is A. 28

7 0

3 years ago

Which line is perpendicular to the line Y = 2x +3?

IRISSAK [1]

Answer:

Mark me brainliest :))

7 0

2 years ago

Rewrite the expression with the given base. 16^x with a base of 2.

olga55 [171]

Keeping in mind that 16 = 2*2*2*2, thus 16 = 2⁴

$\bf 16^x\implies (2^4)^x\implies 2^{4\cdot x}\implies 2^{4x}$

5 0

3 years ago

-6.5+c=-4.12. How do you solve

Reptile [31]

Answer: c=2.38

Step-by-step explanation:

4 0

3 years ago

Select the measures of the angles of a triangle whose angles have measures in the ratio 6:8:10

morpeh [17]

Answer:

45, 60, 75

Step-by-step explanation:

The ratio of the angles are 6:8:10

Multiply by x to get the angle measures

6x, 8x,10x

We know the sum of the angles is 180 for a triangle

6x+8x+10x = 180

Combine like terms

24x = 180

Divide each side by 24

24x/24 = 180/24

x =7.5

Each angle is

6x = 6(7.5) =45

8x = 8(7.5) =60

10x = 10*7.5 = 75

4 0

3 years ago