Answer:
60 push-ups
Step-by-step explanation:
Set up a ratio to represent the problem:
Molly : Liza
10 : 15
40 : ?
How did we get from 10 to 40?
You multiply by 4. Therefore, multiply by 4 on both sides of the ratio.
10 : 15
x4 x4
40 : 60
So, Liza does 60 push-ups while Molly does 40.
Answer= 59.8mph
So since it takes 3h of 50mph to get from Ashdown to Bridgetown Carol drives for 150miles. Because 3*50 is 150.
Then divide 60 by 70 which is 0.857. Then times 0.857 by 60 to see how long it took her , which is 51 mins. Add 3h and 51mins which gets you 3.51h.
Then add 150 and 60 to get 210. Divide 210 by 3.51 then you get 59.8 mph
B is the answer to your question
Answer:
x = 23; not extraneous
Step-by-step explanation:
A solution is extraneous if it does not satisfy the original equation. Extraneous solutions can sometimes be introduced in the process of solving radical and rational function equations.
<h3>Solution</h3>
Squaring both sides of the given equation, we get ...
√(3x +12) = 9
3x +12 = 81 . . . . . . square both sides
x +4 = 27 . . . . . . . divide by 3
x = 23 . . . . . . . . . . subtract 4
<h3>Check</h3>
There is only one solution, and it satisfies the equation:
√(3×23 +12) = √81 = 9
The solution x = 23 is not extraneous.
Answer: $6, 720
Step-by-step explanation:
Formular for simple interest =P×R×T
where;
P= 6000
R= 3% = 0.03
T= 4 years
$6000 × 0.03 × 4
= $720
The total amount to be paid back at the end of time will be
$6,000 + $720
=$6, 720
I hope this helps
