Erik has 8 sacks of flour. Some of his sacks weigh 3 pounds, and the others weigh 7 pounds. The total weight
of his flour is 36 pounds. How many 7-pound sacks does
he have?

You take the two and make the equations

x+y=8

3x+7y=36

(x=3 pounds;y=7 pounds)

then you plug numbers in.. (v)

Step-by-step explanation:

3(5)+7(3)=36

15+21=36

Step-by-step explanation: 3 seven pound bags and 5 three pound bags

7+7+7=21. 3+3+3+3+3=15. 21+15=36

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

answer: answer is c!

ok i got to organize the

3/15 and 12/55

3*

aha

3*4 equals 12 but not

a: no

b:

8/24 12/35

no

gautie

it's c

5/18 = 25/90

5*5=25

18*5 = 90

hope that you!

one more happy customer!

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step-by-step explanation: