Write the following fraction as a decimal number. (2 points)
2 answers:
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Answer:
a) 378 foot
b) 3780¢
c)
Step-by-step explanation:
Given: Ribbon required to make 1 bow = 1.5 yards
We know that 1 yard = 3 foot
a) Number of bows Jeanne wants to make = 84
Foot of ribbon required to make 84 bows
= Number of bows Jeanne wants to make × Ribbon required to male 1 bow
= 84 × 1.5 yards
= 126 × 3 foot = 378 foot
Thus, Jeanne requires 378 foot of ribbon to make 84 bows.
b) Cost of ribbon = 10¢ per foot
Total money required to buy ribbon
= Cost of ribbon × Amount of ribbon required in foot
= 10 × 378
= 3780.00¢
c) Number of bows manufacture wants to make = 84 × 1000
= 84,000 bows
Amount of ribbon required to make bows
= 1000 × Amount of ribbon required to make 84 bows
= 1,000 × 378 = 378000 foot
To write it in exponential form:
To solve this question, we can start to set up an equation using what the question is telling us. Since we don't know what the number is, let's make it equal to x.
The phrase "5 times a number" means that we're multiplying our unknown, x, by 5. That is equal to 5x. 9 less than that would be 5x - 9. Since we know that it's equal to -30, we can solve.
5x - 9 = -30
Get all terms with x on one side and the constants on the other
5x - 9 +9 = -30 + 9
Simplify
5x = -21
Now, we can divide both sides by 5 to get our answer of x = -