Answer:
Step-by-step explanation:
√25 * √9 = √(5*5) * √3*3)
= 5 * 3 = 15
Step-by-step explanation:
what is the best definition of luminous
Answer:
1. x = 67.5
2. x = 2.5
3. x = 35.2
4. x = 2.0
5. x = 17.0
Step-by-step explanation:
Question 1
The proportion is set up in the form x/9 = 15/2. Multiply both sides by two to get rid of the two in the denominator on the right side. After doing so, multiply by 9 on both sides to get rid of the 9 in the denominator on the left:
2x/9 = 15
2x = 9(15)
Next solve for x:
2x = 135
x = 67.5
Question 2
The proportion is set up in the form 20/8.7 = 5.8/x. Multiply both sides by the second denominator, x, and then both sides by the first, 8.7. This will leave you with the work below:
20x/8.7 = 5.8
20x = 8.7(5.8)
Next, solve for x:
20x = 50.46
x = 2.523
Round to the nearest tenth:
x = 2.5
Question 3
The proportion is set up in the form 5/16 = 11/x. Multiply both sides by the second denominator, x, and then both sides by the first, 16. This will leave you with the work below:
5x/16 = 11
5x = 11(16)
Next, solve for x:
5x = 176
x = 35.2
Question 4
The proportion is set up in the form x/0.06 = 17/0.5. Multiply both sides by the second denominator, 0.5, and then both sides by the first, 0.06. This will leave you with the work below:
0.5x/0.06 = 17
0.5x = 17(0.06)
Next, solve for x:
0.5x = 1.02
x = 2.04
Round to the nearest tenth:
x = 2.0
Question 5
The proportion is set up in the form 29/x = 75/44. Multiply both sides by the second denominator, 44, and then both sides by the first, x. This will leave you with the work below:
29(44)/x = 75
29(44) = 75x
Next, solve for x:
1276 = 75x
x = 17.0133
Round to the nearest tenth:
x = 17.0
I only see one questio but the answer to this one is a^2/b
Answer:
$8.50 per hour
Step-by-step explanation:
Alyssa worked 3 hours on Sunday and 4.2 hours on Monday
Total Number of hours Alyssa worked= Number of hours she worked on Sunday+Number of hours she worked on Monday=(3+4.2)=7.2 Hours
Total amount she earned if she is paid in a hourly rate=(Total Number of hours she worked×Money she earns per hour)
Replacing;
Total amount she earned=$61.20, Number of hours she worked=7.2, Money she earns per hour is unknown=M
61.20=7.2×M
Solving for M
(7.2×M)/7.2=61.20/7.2
M=$8.50 per hour
The money she earns per hour=$8.50
