Answer:
oop sry cant help way above my grade level.
Step-by-step explanation:
Answer:
The mechanic who worked 5 hours charged $115 per hour, the one who worked 15 hours charged $120 per hour.
Step-by-step explanation:
x = rate of mechanic who worked 5 hours
y = rate of mechanic who worked 15 hours
Then
x + y = 235
5x + 15y = 2375
Just solve these 2 equations above for x and y.
x + y = 235 ⇒ x = 235 - y
Substitute into second equation to find y.
5(235 - y) + 15y = 2375
1175 - 5y + 15y = 2375
10y = 1200
y = 1200/10 = 120
x = 235 - y = 235 - 120 = 115
Answer:
Step-by-step explanation:
Density is defined as mass of an object divided by its volume.
#We calculate the volume of the cylinder:
Given the mass= 15.3kg and volume as above, we calculate density as:
Hence, the solid's density is
Answer: 69%
Step-by-step explanation:
16820x100= 1682000
1682000÷24365=69.033
Answer:
first one is A and the second one is B.
Step-by-step explanation:
