Step-by-step explanation:
The area of a triangle is 1/2 bh, where b is the base and h is the height.
A. 1/2 * 6 * 9 = 27 sq. ft
B. 1/2 * 6 * 4 = 12 sq. ft
C. 1/2 * 7 * 8 = 28 sq. ft
D. 1/2 * 10 * 3 = 15 sq. ft
E. 1/2 * 14 * 5 = 35 sq. ft
F. 1/2 * 15 * 10 = 75 sq. ft
G. 1/2 * 20 * 13 = 130 sq. ft
H. 1/2 * 4 * 11 = 22 sq. ft
Hope this helps!
Answer: 6.56hours.
Step-by-step explanation:
Given;
Mario and julio can wash 7 cars in 2hours
While only mario can wash 5 cars in 3hours
Let m represent the rate at which mario work
j represent the rate at which julio work
t represent the rate at which mario and jolio combined work.
t = m + j
j = t -m .......1
t = 7 cars per 2hours = 7/2 = 3.5cars/hour
m = 5 cars per 3hours = 5/3 = 1.67cars/hour
From eqn 1
j = t -m = 3.5 - 1.67 = 1.83cars/hour
So, to determine the number of time it will take julio to detail 12 cars
Where = number of cars detailed
N = rate × time = j × time
time = N/j
time = 12/1.83
time = 6.56 hours
Therefore, it will take julio to detail 12 cars is 6.56 hours.
Answer:
help me pls the answer is -6
Step-by-step explanation:
Time = distance / speed
time = 395.1 / 79
time = 5.0 hrs
