Answer: 60
Step-by-step explanation:
ball =x
bat = y
x + y = 90
and
equation II is
3 x + 2 y =210
By multiplying by 3 to equation I both sides
we get equation III as
3( x + y) = 3 ( 90 )
3x + 3y =270 III
subtract II and III
we get 3x+3y=270
- 3x+2y=210
--------------------------
0+y= 60
y =60
cost of bat is y ie = 60
and cost of ball ,is
let put value of y in equation I
x+60=90
x=90-60
x=30
cost of ball is 30
You can find this by finding how much she would be paid per hour and then multiplying it by 6. So, you have $35 for the other days but on Sunday's it is that and then half of that added on just in one hour.
35+(1/2)(35)= 35+17.5=$52.5/hour
after you find this value you need to multiply it by 6 hours in order to be left with $315.
Now if you can just put a good word in for me at that job :)
Answer:
the picture is blocked
Step-by-step explanation:
Answer: 615.44
A=4(pi)r^2
A=4(pi)7^2
A= 4 x 3.14 x 49
A= 615.44