$5 each car
3 hours = 12 cars
÷3 ÷3
1 hours = 4 cars
×8 ×8
8 hours = 32 cars
32 cars × $5 per car =
$160
They earned $160 in 8 hours, from washing 32 cars.
Answer:
1199.3
Step-by-step explanation:
1199.28856995
round 2 up to 3, because the next number is greater than 5 (which is 8)
Answer: 44.7
Step-by-step explanation:
Mean= total sum of data set/ number of data set
313÷7
Mean = 44.7
Answer:
D
Step-by-step explanation:
Hello Mate!
Factor theorum states that p( x ) = 0
x = 1, 2
p( x ) = x^3 -10x^2+ax+ b
0 = 1 - 10 + a + b
0 = - 9 + a + b ------(1)
0 = 2^3 - 10(2)^2 + a(2) + b
0 = 8 - 40 + 2a + b
0 = - 32 + 2a + b ------(2)
(1) - (2)
-9 + a + b
-( - 32 + 2a - b )
23 - a = 0
a = 23
keeping value of a in eq. 1
0 = - 9 + 23 + b
-14 = b
Hope it helps☺!✌
