Answer:
52 km/hr
Step-by-step explanation:
Speed equals distance over time.
2 hours 45 minutes = 2.75 hours
S = 143/2.75
S = 52
The car’s speed is 52 kilometers per hour.
<span>1m +
35cm = .35m +
3m +
90cm =.90 m +
25mm = .025m +
</span>
<span><span>+ 1.0 m
+ 0.35m
+ 3.0 m
+ 0.90 m
+ 0.025m</span>
= 5.275 meters
</span>
Answer:
D. 2•2•3•7
Step-by-step explanation:
Answer:
12/31
Step-by-step explanation:
There are 31 days in march so it rained 12/31 days. This fraction doesn't simplify.
Answer:
Non-proportional; the rate of change is $40/hour
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form
or
In a proportional relationship the constant of proportionality k is equal to the slope m of the line <u>and the line passes through the origin</u>
Let
x -----> the number of hours
y ----> The total charge in dollars
The equation of the line in slope intercept form is equal to

where
m is the slope
b is the y-intercept
we have

substitute

This relationship is not proportional, because the line not passes through the origin
therefore
Non-proportional; the rate of change is $40/hour