Question

Can someone please help me with math.

Answer 1

4- 20

I created an equation for this one:

4x+x=100

• 4x= four times the amount of the other number
• x= the number
• combine like terms

5x=100

• divide by 5

x=20

5. One pretzel costs $3

Create an equation:

• 2s+p=7
• 4s+3p=17

Mulitply 2s+p=7 by -2 so you can use elimination.

• -4s-2p=-14
• 4s+3p=17

Combine equations

p=3

Answer 2

For #3
there will be 8 geese and 12 pigs

the equation would be first to find out how many geese there are

pigs have 4 feet and geese have 2
g=geese p=pigs

4(20-g)+2g=8

now we know there are 8 geese which is 8•2 so 16 feet!

now use what we know to find out how many pigs there are

20-8 is 12 which means 12 pigs or 12•4 which means 48 feet

you can check it by adding the feet and animals

12+8=20 animals
48+16=64 feet!