First find her rate per hour by dividing $90 by 5 hours:
90 / 5 = 18
She makes $18 in one hour.
1 hour = 3600 seconds.
Divide her hourly rate by 3600 to find how much she makes per second:
18 / 3600 = $0.005 per second.
Now divide $0.25 by 0.005 to find the number of seconds needed:
0.25 / 0.005 = 50
It takes 50 seconds.
Answer:
4a = 36
Step-by-step explanation:
multiply a by 4 to get the mom's age. it can also be 1/4 (36) = a
Answer:
Form an equation:
let x be the price of a shirt
Then, the price of a sweater would be x - 5
So you would have:
4(x - 5) + 3x = 200
simplify
4x - 20 + 3x = 200
7x - 20 = 200
add 20 to both sides
7x = 220
divide both sides by 7
x = about 31.43
That means the cost of the sweater would be 31.43 - 5 = 26.43
Answer:
81.25
Step-by-step explanation:
