MATHEMATICS MIDDLE SCHOOL

A window washer uses the proportional relationship y = kx to determine how long (y) it will take him to wash any number of windows (x). It takes the window washer 8 hours to wash 250 windows. What is the value of kA) k = 242
B) k = 258
C) k = 0.032
D) k = 31.25

Answers

Answer 1
Answer: C.

By plugging in the numbers into the equation, 8 = 250(k), we can determine that 8 ÷ 250 = 0.032.

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Find the mean of this set of numbers:
10, 10, 7, 12, 11

Answers

Answer:

u just take the sum of all numbers divide by the number of numbers (5)
Answer: 10

Step-by-Step Explanation: 10+10+7+12+11=50
You divide 50 by 5 (which is the total of numbers)
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The mean of this set of numbers would be 10

100 rational numbers can be inserted  between 2 and 7? give your views on this statement

Answers

a= (7-2)/(101) = (5)/(101) \n\nx_1=2+a=2 (5)/(101)\n\nx_2=2+2a=2 (10)/(101)\n\nx_3= 2+3a=2 (15)/(101)\n\n....\n\nx_(98)=7-3a=7- (15)/(101)=6 (86)/(101)\n\nx_(99)=7-2a=7- (10)/(101)=6 (91)/(101)\n\nx_(100)=7-a=7- (5)/(101)=6 (96)/(101)
My view is that between any two rational numbers, there are
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That's my view and I'm sticking to it.

Rewrite the following equation in slope-intercept form.7x + 2y = -14


Write your answer using integers, proper fractions, and improper fractions in simplest form.

Answers

Answer:y= -7/2x–7

Step-by-step explanation:

Slope intercept form is: y=mx+b

7x + 2y= -14

-7x. -7x

2y= -7x-14

/2. /2

y= -7/2x–7

Jay and Blair went fishing. Together, they caught 27 fish. Jay caught 2 times as many fish as Blair. How many fish did Jay and Blair each catch?

Answers

Jay caught 18 and Blair caught 9
Jay caught 18 and Blair caught 9 since 9x2=18 and 18+9=27

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Answers

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What is 80% of 35? (EXTRA CHARACTERS)

Answers

80% of 35 is 28 :) hope this helps!
Reason why it's 28:
If you want to find the percentage of a given number, 
you multiply the percentage into the number
35*.8 = 28
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