Answer:
d
Step-by-step explanation:
Answer:$25.80
Step-by-step explanation:
6.45/5 = 1.29
1.29 x 20 =25.80
Answer:
45 people
Set up a proportion.
7/2 = x/10
cross multiply
We get 2x=70
x= 35
Children= 35
35 children + 10 adults= 45 people
Answer:
x = -1, y =7
Step-by-step explanation:
3x+y =4
2x+y=5
Multiply the second equation by -1 and add to the first
3x+y =4
-2x-y=-5
-----------------
x = -1
Now find y
3x+y = 4
3(-1) +y = 4
-3+y = 4
Add 3 to each side
-3+3 +y = 4+3
y =7
Well my answer i dont know if right or not but if me my answer will be ( Neither )