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Dafna11 [192]
3 years ago
7

Rachel saved $200 and spends $25 each week. Roy just started saving $15 per week. In how many

Mathematics
2 answers:
Sindrei [870]3 years ago
6 0

Answer:

5 weeks

Step-by-step explanation:

Equate Rachel and Roy's savings:

$200 - ($25/wk)w  = ($15/wk)w

Combining like terms, we get:

$200 = ($40/wk)w, and so w comes out to 5 weeks.

Basile [38]3 years ago
4 0

Answer:

5 weeks

Step-by-step explanation:

200-25x = 15x

we set each equation equal since Rachel has 200 but spends 25 each week we set 200 - 25x (x being the number if weeks) equal to Roy saving $15 per week

200 -25x =15x

+25x +25x add 25x to both sides to isolate the variable

200= 40x

200/40 = 40x/40 divide both sides by 40 to get x by itself

5=x ( previously mentioned x is the number of weeks) therefore they will have either same amount of money after 5 weeks

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Answer:

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Step-by-step explanation:

The first thing we want to do here is to simplify this expression. After doing so, " a " and " b " should be multiplied to result in a possible improper fraction,

\left(81x^{\frac{2}{7}}\right)\:\left(2/9x^{\frac{3}{7}}\right)\: - Apply exponential rule " \:a^b\cdot \:a^c=a^{b+c} "

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= 81\cdot \frac{2}{9}x^{\frac{5}{7}} - Multiply the fractions, and simplify further

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Answer:

Below.

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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