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aleksandrvk [35]
3 years ago
15

Robin can clean 72 rooms in 6 days

Mathematics
2 answers:
pentagon [3]3 years ago
8 0

Answer:

B

Step-by-step explanation:

Number of rooms to be cleaned in 6 days = 72

Number of rooms to be cleaned in 1 day = 72 ÷ 6 = 12

Number of rooms to be cleaned in 9 days  = 12 * 9 = 108 days

lozanna [386]3 years ago
6 0

Answer:

B

Step-by-step explanation:

6/2*3=9

so 72/2*3= 108

so B

if my answer helps please mark as brainliest.

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What is the slope of a line perpendicular to y = 8 - 2/7x?
Salsk061 [2.6K]
The slope of the current line is -2/7. To find the slope of the line perpendicular to it, find the negative reciprocal of the slope. So it would be 7/2. The y intercept or the b would remain the same so the equation would be y=7/2x+8. Hope this helps. 
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Kelly price sells college textbooks on commission. She gets 8 % on the first $7500 of​ sales, 16% on the next $7500 of​ sales, a
Solnce55 [7]

Answer:

The commission would be $ 920.

Step-by-step explanation:

Given,

Sales in 1997 ​= $ 9500,

Since, there is a commision of 8 % on the first $ 7500 of​ sales, 16% on the next $ 7500 of​ sales, and 20% on sales over $ 15,000,

If x represents the total sales,

Commission for x ≤ 7500 = 8% of x = 0.08x,

Commission for 7500 < x ≤ 15000 = 8% of 7500 + 16% of (x-7500)

= 600 + 0.16(x-7500),

Commission for 7500 < x ≤ 15000 = 8% of 7500 + 16% of 7500 + 20% of (x-15000)

= 600 + 1200 + 0.20(x-15000)

= 1800 + 0.20(x-15000)

Thus, the function that shows the given situation,

f(x)=\left\{\begin{matrix}0.08x & x \leq 7500\\ 600+0.16(x-7500) & 7500 < x \leq 15000\\ 1800+0.20(x-15000) & 15000 < x\end{matrix}\right.

Since, 9500 lies between 7500 and 15000,

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Dmitriy789 [7]
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X(a - 2)/(a - 2) = c+5/(a-2)

X = c+5/a-2

I believe this would be the solution.
8 0
3 years ago
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