To find the percent of a number, just convert the percent to a decimal and multiply the decimal by the number.
10.
6% = 0.06
0.06 • 90 = 5.4
11.
20% = 0.2
0.2 • 80 = 16
12.
27% = 0.27
0.27 • 120 = 32.4
13.
12% = 0.12
0.12 • 230 = 27.6
14.
75% = 0.75
0.75 • 240 = 180
15.
15% = 0.15
0.15 • 45 = 6.75
16.
3% = 0.03
0.03 • 12 = 0.36
17.
150% = 1.5
1.5 • 17 = 25.5
18.
7% = 0.07
0.07 • 300 = 21
Answer:
45 miles per hour
Step-by-step explanation:
The second bit of information is completely irrelevant. To calculate speed, you have to use the equation distance divided by time. If the distance of the trip is 90 miles and it took two hours, 90/2 = 45.
The perimeter is 20 feet, half the perimeter Would be 10 feet.
Need 2 numbers when added together equal 10 and when multiplied together equal the area of 21.
3 and 7 The pond is 3 feet by 7 feet.
Answer:
see explanation
Step-by-step explanation:
Rearrange the equation expressing x or y in terms of the other variable.
2y = 4 - 3x ( divide both sides by 2 )
y =
Choose suitable values for x and evaluate for y
x = 2 → y = = = - 1
Thus (2, - 1 ) ← is a solution
x = - 2 → y = = = 5
Thus (- 2, 5 ) ← is a solution
x = 4 → y = = = - 4
Thus (4, - 4 ) ← is a solution
Answer:
p = 0.718 and n = 20
Step-by-step explanation:
p is the probability of success and n is the number of trials.
Here, p = 0.718 and n = 20.