4 years ago

Evaluate the expression when x = 3 and y=-7. x-8y

Mathematics

1 answer:

Simora [160]4 years ago

4 0

Answer: 59

Step-by-step explanation:

3 - 8(-7)

3 - (-56)

3 + 56 = 59

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-6x+6y=6 - 6x+3y=-12 also steps on how to solve it

Masja [62]

Answer:

x=5, y=6. (5, 6).

Step-by-step explanation:

-6x+6y=6

-6x+3y=-12

---------------

simplify -6x+6y=6 into -x+y=1 and y=1-(-x)=1+x

-6x+3(1+x)=-12

-6x+3+3x=-12

-3x=-12-3

-3x=-15

3x=15

x=15/3

x=5

-6(5)+6y=6

-30+6y=6

6y=6-(-30)

6y=6+30

6y=36

y=36/6

y=6

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3 years ago

What’s the volume????

Alborosie

Answer:

Step-by-step explanation:

1/3 BH = 1/3(30)(9) = 90

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3 years ago

Given that P(BA) means the probability of event B occurring given that event A will occur or has occurred, which of the followin

Westkost [7]

The correct answer is D

3 0

3 years ago

Read 2 more answers

What is60/44 simplified!?

Andru [333]

It is 15/11 for 60/44 but do u mean 44/60??????

3 0

3 years ago

Find three consecutive even integers such that the sum of the first, twice the second, three times the third is -76. What is the

ss7ja [257]

Answer:

The numbers are -14,-13 and -12

Step-by-step explanation:

The correct question is

Find three consecutive integers such that the sum of the first, twice the second and three times the third is -76. What is the number?

Let

x ----> the first consecutive integer

x+1 ---> the second consecutive integer

x+2 ---> the third consecutive integer

we have that

$x+2(x+1)+3(x+2)=-76$

solve for x

apply distributive property

$x+2x+2+3x+6=-76$

Combine like terms

$6x+8=-76$

subtract 8 both sides

$6x=-76-8$

$6x=-84$

Divide by 6 both sides

$x=-14$

$x+1=-14+1=-13$

$x+2=-14+2=-12$

therefore

The numbers are -14,-13 and -12

3 0

4 years ago