Answer:
She can paint 17 statues
Step-by-step explanation:
Sorry I don’t really know how to show my work
Answer:
Courtney's walking speed = 3.33mph
Brandi's walking speed = 4.33 mph
Step-by-step explanation:
Let x = Courtney's walking speed
then
(x + 1) = Brandi's walking speed
:
Time = Distance/speed
Brandi walks 6.5 mi time = Courtney walks 5 mi time
6.5/x + 1 = 5/x
Cross multiply
6.5x= 5(x+1)
6.5x= 5x + 5
6.5x - 5x = 5
1.5x = 5
x = 5/1.5
x = 3.33 mph is Courtney's walking speed
Note that:
(x + 1) = Brandi's walking speed
3.33mph + 1 = 4.33mph
Therefore,
Courtney's walking speed = 3.33mph
Brandi's walking speed = 4.33 mph
Answer:
The answer is C --> 120
Step-by-step explanation:
Answer:

Step-by-step explanation:
<u><em>The complete question in the attached figure</em></u>
<em>Verify each case</em>
Part 1) we have

solve for x




Part 2) we have

Multiply both sides by -1 and rearrange the terms on the left side to get

This expression is the same that the expression in Part 1)
That means, that the equations Part 1) and Part 2) are equivalent
therefore

Part 3) we have

Remember that

This expression is the same that the expression in Part 1)
That means, that the equations Part 1) and Part 3) are equivalent
therefore

Part 4) we have

This equation is not equivalent to the other three, because some terms are multiplied by -8/7 and others are not. When different things are done on either side of the equal sign, it changes the equation, resulting in a different solution