2 years ago

40 is 20% of what number?

Mathematics

2 answers:

djverab [1.8K]2 years ago

7 0

Answer:

Step-by-step explanation:

Veronika [31]2 years ago

7 0

Answer:

200

Step-by-step explanation:

40 divided by a number must equal 20%

40/x=20/100

Cross multiply

20*x=40*100

20x=4000

Divide by 20 on both sides

x=200

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2 years ago

It took a car 5 days to travel 1459 miles. What was this car’s average speed, in miles per hour?(round to the nearest mile per h

dangina [55]

Answer:

12.158333333 miles per hour or 12

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2 years ago

Read 2 more answers

Solve each equation.<br>1. 9/2x+18+3x=11/2<br>2. (x+6)-(2x=7)-3x=-9

zzz [600]

$1.\\\frac{9}{2}x+18+3x=\frac{11}{2}\ \ \ \ \ |Multiply\ by\ 2\\\\
9x+36+6x=11\\\\
15x+36=11\ \ \ |Subtract\ 36\\\\
15x=-25\ \ \ |Divide\ by\ 15\\\\
x=-1\frac{2}{5}\\\\
2.\\
(x+6)-(2x-7)-3x=-9\\\\
x+6-2x+7-3x=-9\\\\
-4x+13=-9\ \ \ |Subtract\ 13\\\\
-4x=-22\ \ \ |Divide\ by\ -4\\\\
x=5,5$