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Len [333]
3 years ago
6

Kendra earns $70 per week mowing lawns. She saves 60% of the money she earns each week. How many weeks will it take Kendra to sa

ve enough money to buy a game system that costs $210?
Mathematics
2 answers:
katrin [286]3 years ago
4 0

Answer:

5 weeks

Step-by-step explanation:

Let's find how much money she saves a week by multiplying the decimal form of 60% and $70.

To get the decimal form of a percent you have to move the decimal to the left twice, like this: 60 ---> .60

Now that we have the decimal form of the percent we can multiply it by the 70 to find how much she saves a week:

(70)(.6) = 42

Therefore, Kendra saves $42 each week.

To find how many weeks it will take Kendra to buy the game system you divide $210 by the $42. Like this:

(210)/(42) = 5

All in all, it will take Kendra 5 weeks to save enough money to buy a game system that costs $210.

<em>I hope this helps!!</em>

<em>- Kay :)</em>

<em />

lyudmila [28]3 years ago
4 0

Answer: 5 week

Step-by-step explanation:

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ANSWER

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EXPLANATION

The outermost square tile has side length,

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Area=x {(x - 3)} - 3(x - 3)

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Area= {x}^{2}  - 3x - 3x  + 9

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3 years ago
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Answer:

-3 + sqrt 42

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Step-by-step explanation:

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2x^2 +12x-66

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3 years ago
Suppose that the functions s and t are defined for all real numbers x as follows.
jeka94

Answer:

(s.t)(x) = 4x^2+24x^2\\(s-t)(x) = x+6-4x^2\\(s+t)(-3) = 39

Step-by-step explanation:

Given functions are:

s(x)= x+6\\t(x)= 4x^2

We have to find:

(s.t)(x) => this means we have to multiply the two functions to get the result.

So,

(s.t)(x) = s(x)*t(x)\\= (x+6)(4x^2)\\=4x^2.x+4x^2.6\\=4x^3+24x^2

Also we have to find

(s-t)(x) => we have to subtract function t from function s

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(s.t)(x) = 4x^2+24x^2\\(s-t)(x) = x+6-4x^2\\(s+t)(-3) = 39

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