We shall use yards as the unit here.. 3 feet is 1 yard, so we know that the ratio is now 1 yard to 7 yards. We can't reduce this anymore, so this is the final ratio.
Answer:
3/22
Step-by-step explanation:
There's a very neat trick for this kind of problem.
First, choose a letter to represent the number.
n = 0.1363636...
Observe that there is a 2-digit block that repeats ("36"), but that block does not repeat immediately to the right of the decimal point. Do two muliplications, one to put the decimal point in front of the repeating block, the other to put the decimal point after the block.
10n = 1.363636...
1000n = 136.363636...
Here comes the cool part: subtract the first equation from the second.
990 n = 135 See? The repeating decimal parts, all lined up as they are, subtract to zeros.
Finally, n = 135/990 = 15/110 = 3/22
To solve this equation we must use division.
We know we spent 24.32 to fill the gas tank.
And each gallon cost 1.90
We can divide and solve for how many gallons he bought.
24.32 ÷ 1.90 = 12.8
Todd has bought 12.8 gallons of gas.
Good Luck! <3
Answer:
98
Step-by-step explanation:
9(12 + 5) - 11(21 - 8 x 2)
(108 + 45) - 11(21 - 16)
153 - (231 - 176)
153 - 55 = 98
Answer:
20
Step-by-step explanation:
