The correct answer is: 27 .
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Explanation:
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9^(3/2) = (√9)³ = 3³ = 3 * 3 * 3 = 27 .
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Answer:
Flip the second number
Step-by-step explanation:
To divide by a fraction, you simply flip it over and multiply
Take # 7 as an example:
5 / becomes 5 X
Of course to make a whole number you put a 1 under it:
5 becomes
Then you multiply straight across (top X top and bottom X Bottom)
Lastly, simplify as needed:
2 /
Make the two a fraction and flip the fraction you are dividing with:
which reduces to 6
To remember the steps use Keep it, Change it, Flip it.
Keep the first number, change from division to multiply, and flip the fraction you were going to divide by.
Sorry dude! I don’t know this one but goodluck
It's equal to, both sides equal 32.
Answer:
The rate charged by first mechanic per hour= x =$85
The rat charged by second mechanic per hour =y = $70
Step-by-step explanation:
Two mechanics worked on a car. The first mechanic worked for 10 hours, and the second mechanic worked for 15 hours. Together they charged a total of $1900. What was the rate charged per hour by each mechanic if the sum of the two rates was $155 per hour?
Solution
Let
x= hourly rate of the first mechanic
y= hourly rate of the second mechanic
Derive two equations to solve for the two unknowns
10x + 15y = 1900 (1)
x + y = 155 (2)
From (2)
x + y = 155
x=155-y
Substitute x=155-y into (1)
10x + 15y = 1900
10(155-y) + 15y =1900
1550 -10y + 15y =1900
5y =1900-1550
5y=350
Divide both sides by 5
y= 70
Substitute y=70 into (2)
x + y = 155
x + (70) =155
x=155 - 70
= 85
x= 85
The rate charged by first mechanic per hour= x =$85
The rat charged by second mechanic per hour =y = $70