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Jane spent $42 for shoes.  This was $14 less than twice what she spent for a blouse.  How much was the blouse?

 

There are b boys in the class.  This is three more than four times the number of girls.  How many girls are in the class?

 

The sum of two numbers is 84, and one of them is 12 more than the other.  What are the two numbers?

 

The sum of two consecutive numbers is 37.  What are they?

 

One number is 10 more than another.  The sum of twice the smaller plus three times the larger, is 55.  What are the two numbers?

 

Divide $80 among three people so that the second will have twice as much as the first, and the third will have $5 less than the second.

 

It takes 23 minutes for 6people to paint 6 walls.  How many minutes does it take 9people to paint 9walls

 

The perimeter of a rectangular atrium is 104 inches. The length of the atrium is three times the width. Find the length and the width.

 Feb 6, 2020
 #1
avatar+18229 
+1

1)  42  =  2b - 14      --->     solve for b

2)  b  =  3 + 4g         --->     solve for g

3)  x + y  =  84

     x  =  12 + y          --->     solve for x and y

4)  x + x + 1  =  37   --->     solve for x and x + 1

5)  x  =  10 + y

     2y + 3x  =  55     --->     solve for x and y

6)  x + 2x + (2x - 5)  =  80     

7)  one person paints a wall in 23 minutes; so, how long will it take 9 persons to paint 9 walls?

8)  P  =  2l + 2w

     l  =  3w              --->     solve for l and w

     P  =  104

 Feb 6, 2020
 #2
avatar+107011 
+1

It takes 23 minutes for 6people to paint 6 walls.  How many minutes does it take 9people to paint 9walls

 

In one minute,   the   6 people will  paint   6/23   of a wall

 

So....in one minute....one person  will  paint  1/23  of a wall

 

So.....9 people will paint  9/23  of a wall  in one minute

 

So.....in 23 minutes.....they will paint  9 walls

 

cool cool cool

 Feb 6, 2020
 #3
avatar+107011 
+1

One number is 10 more than another.  The sum of twice the smaller plus three times the larger, is 55.  What are the two numbers?

 

Let  x  be the smaller number  and x + 10  the larger....so.....

 

2x +3(x +10)  = 55

 

5x + 30  = 55

 

5x  =25

 

x  = 5     =  the smaller

 

x + 10  = 15  =  the larger

 

 

 

 

cool cool cool

 Feb 6, 2020

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