Answer:
The test contains 10 three-point questions and 14 five-point questions.
Step-by-step explanation:
We can substitute a definition of one of the variables by rearranging the first equation.
We set the first equation equal to one of our two variables.
Now we substitute this equality into our second equation
Answer:
21
Step-by-step explanation:
8.75=25
8.75*2=50
17.5+
1.75=5
1.75*2=10
3.5
3.5+17.5=21
Answer: 30 mph.
Total speed = S1 + S2
where total speed is
for the average speed goal (60m ph), S1 is the speed for the first mile (30 mph)
and S2 is for speed for the second mile which is unknown. To solve, simply subtract
S1 from total speed.
<span>60 mph - 30 mph= 30 mph</span>
Answer:
7.5$
Step-by-step explanation:
This is because 11.25*3 = 33.75
and 8.25*5 = 41.25
41.25-33.75=7.5
Answer:
135
Step-by-step explanation:
360/8=45
so she can type 45 words a minute
45 x 3=135 words in 3 minutes