Answer:
7
Step-by-step explanation:
1/4 of 56 is 14
1/4 ice cream + 1/4 cookies is 28
1/8 of 56 is 7 so 7×3 =21
28+21=49
49+7=56
You divide the total number by the denominator so like 56÷8 is 7 and 56÷4 is 14.
Electricity travels at 186,000 MPS
The idea is to shift the number enough so that you can cancel the repeating digits by subtraction.
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Example
0.181818_18 multiplied by 100 gives
18.181818_18
Subtracting the original number gives
18.000000_00 . . . . . . all the repeating digits have been eliminated
When you multiply by 100 and subtract 1 times the original, you have multiplied by 99. Thus the value of the original number is 18/99 or 2/11.
Answer:
2 should be distributed as 2y + 8; y = 4
Step-by-step explanation:
Step 2 is wrong.
2(y + 4) = 4y
The step to solve is to expand brackets or distribute 2, not divide both sides by 2.
2y + 8 = 4y
Subtract both sides by 2y.
8 = 2y
Divide both sides by 2.
4 = y
