Answer:
38.4 miles per hour
Step-by-step explanation:
30 miles in 45 minutes
18 miles in 30 minutes
Average speed = total distance / total time
= (30+18) / ( 45 min + 30 min)
= 48 miles / ( 1.25 hr ) = 38.4 miles per hour
Answer: 9
Concept:
Here, we need to know the idea of absolute value.
The<u> absolute value</u> of a number or integer is the actual distance of the integer from zero, in a number line.
There are <u>no negatives </u>in absolute value. So in practice "absolute value" means to remove any negative sign in front of a number, and to think of all numbers as positive.
Solve:
<u>Given</u>
3 |-3|
<u>Expand absolute value sign, which means making [-3] positive</u>
= 3 × (3)
<u>Simplify by multiplication</u>
= 
Hope this helps!! :)
Please let me know if you have any questions
Answer:the number is 25
Step-by-step explanation:
2a-7=43
Collect like terms
2a=43+7
2a=50
Divide both sides by 2
2a/2=50/2
a=25
Answer:
99/100
Step-by-step explanation:
First of all recall that

Now we we will try to apply that formula for
and
.
First rewrite 
Now

Answer:
{y,x} = {17/2,-11}
Step-by-step explanation: