Answer:
10
Step-by-step explanation:
Step 1- Substitute the expression.
Step 2- Multiply to simplify.
Step 3- Simplify the parenthesis.
Step 4- Subtract.
Step 5- Reduce the fraction with 5.
The 5's are crossed out when simplified.
= 10
0.42 repeating decimal rational or irrational
1 answer:
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Answer:
88
Step-by-step explanation:
First find the area of the fountain using the area formula of a circle.
The formula for area is . Here the radius is 5 ft. So the area is
.
We will subtract the area of 78.5 from the larger circle of the brick path and fountain to find only the area of the brick path.
The larger circle has an area of where the radius is 9ft.
Subtract to find the area of the path: 254.34 - 78.5 = 175.84. Divide this area by 2 to find the number of bricks needed since each brick is 2 square feet.
175.84/2 = 87.92 = 88 bricks
Answer:
will be the fraction.
Step-by-step explanation:
Here the recurring decimal number is 0.0343434....
To convert this recurring decimal to fraction we assume,
x = 0.03434.... -------(1)
Now multiply both the sides with 100.
100x = 3.43434.... ------(2)
Now subtract equation (1) from equation (2).
100x = 3.43434
<u> x = 0.03434</u>
99x = 3.4
x =
=
x =
Therefore, fraction that represents the decimal number is