Answer:
ACD
Step-by-step explanation:
PLZZ mark brainliest!!
Answer:
A) 100pi cm^2
Step-by-step explanation:
area of a circle: r^2pi
radius=1/2diameter
diameter=20 cm
radius=10cm
10^2pi cm
100pi cm^2
Answer:
the last one
Step-by-step explanation:
Answer:
Danny does
Step-by-step explanation: 40 / 4 = 10
85 / 5 = 17
10 is less than 17 meaning that Danny is offering a better deal.
Hope this helps!
Answer:
Leroy paid 49.07 more than Cora.
Step-by-step explanation:
Let LeRoy's bill be x
Let Cora's bill be y
3*y - 8.59 = x (1)
x + y = 68.29 (2)
Substitute the value of x in (1) into the value of x in (2)
3y - 8.59 + y = 68.29 Combine the ys
4y - 8.59 = 68.29 Add 8.59 to both sides
<u> + 8.59 8.59</u>
4y = 76.88 Divide by 4
4y/4 = 76.88/4
y = 19,22
x + y = 68.29 Substitute 19.22 for y
x + 19.22 = 68.29 Subtract 19.22 from both sides
<u> - 19.22 -19.22</u>
x = 49.07
