Question

Can someone please help me with this problem!!

Answer 1

21

Explanation:

Green bat: x

Purple bat: y

Pumpkin: z

Given:

2x + y = 40

y - z = 7 ===> y = 7 + z

z + x = 19 ===> z = 19 - x

Substitution to find green bat x:

2x + y = 40

2x + (7 + z) = 40

2x + 7 + z = 40

2x + 7 + (19 - x) = 40

2x + 7 + 19 - x = 40

x + 26 = 40

green bat: x = 14

Substitution to find pumpkin z:

z + x = 19

z + (14) = 19

z + 14 = 19

pumpkin: z = 5

Substitution to find purple bat y:

y - z = 7

y - (5) = 7

y - 5 = 7

purple bat: y = 12

Solve for x - z + y:

14 - 5 + 12 = 21

Answer 2

Explanation:

the bat is 12. the pumpkin is 5. and the weird looking thing is 14

14 plus 14 plus 12 is 40

12 minus 5 is 7

5 plus 14 is 19

14 minus 5 plus 12 is 21