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masya89 [10]
2 years ago
6

PLEASE HELP ME!!! THE RIGHT ANSWER WILL GET THE BRAINIEST!

Mathematics
1 answer:
Lina20 [59]2 years ago
8 0

Answer:

\sf D) \quad s=8 \frac{1}{4}t

Step-by-step explanation:

  • t  = time (in hours) → this is the independent variable
  • s = total area cleaned (in square feet) → this is the dependent variable (as the number of square feet cleaned depends on the number of hours worked)

Therefore, if the rate of cleaning is 8 1/4 square feet per hour, the relationship between s and t is:

\sf s=8 \frac{1}{4}t

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Plz help!! Need help asap
masha68 [24]
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2 years ago
F(x)=3/x+2-√x-3 f(7)=
Paladinen [302]

Divide each term by x and simplify.

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F= - 21fx+x√x-2x-3(top of fraction)

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6 0
3 years ago
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Ulleksa [173]
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5 0
3 years ago
You begin with $25 in a savings account and $50 in your checking account. Each week you deposit $5 into savings and $10 into che
Phantasy [73]

Answer:

The amount in checking will always be twice in any week.

Step-by-step explanation:

Let's say, w represents the week, s represents the saving account and c represents the checking account.

Balance in saving account in any week =s=5w+25

Balance in checking account in any week  =c=10w+50

Translate the statement into mathematical equation. Remember to use " = " for word "is" in the given statement.

We have to find w for 2s = c.

Putting the values, we have:

2(5w+25)=10w+50

\Rightarrow \mathrm{True\:for\:all}\:w

Which means in each week the amount in checking is twice the amount in savings.

Best Regards!

7 0
2 years ago
The width of a rectangle is 9 cm. The perimeter is 40 cm. What is the length of the rectangle?
Keith_Richards [23]

Answer:

11

Step-by-step explanation:

2(l+w)

40= 2(9+x)

40= 18+2x

Subtract 18 from 40

22=2x

Divide 2x by itself and 22

11=x or x=11

6 0
3 years ago
Read 2 more answers
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