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skelet666 [1.2K]
3 years ago
15

There are some books on a shelf and 12 are cookbooks. If 20% are cookbooks, how many books are on the shelf

Mathematics
1 answer:
GuDViN [60]3 years ago
5 0
If u take 12 divided by .20 you would get 60 because if u think of it as a dinner bill say it is $60.00 and I want to give a 10% tip it would be $6 but if u give a 20% tip u would give $12
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Two-thirds had their picture taken. If 124 had their picture taken, how many total?
Vesna [10]

Answer:

186

Step-by-step explanation:

1/3 would be 62. You get it by dividing 124 by 2.

Add the 62 onto 124

6 0
3 years ago
Mr. Perrins’s class sold packs of peanut butter cookies for $2.35 each and Mr. Woods’s class sold bottles of milk for $1.34 each
sergey [27]

Answer:

1. Solution = (4,3) and they intersect.

2. Solution = Infinite, this means that the lines overlap each other constantly.

3. Equations = x + y=73 and 2.35x + 1.34y = 141.25

PB Cookies made $101.05

Milk Bottles made $40.02

The cookies made more by $61.03 

Step-by-step explanation:

Took the test and got 100%.

6 0
3 years ago
Read 2 more answers
Please help me :) please
dangina [55]

Answer:

In bold.

Step-by-step explanation:

6/6 = 9/a

So a = 9.

6/c = a/4.5

6/c = 9/4.5 = 2

So c = 3.

By similar triangles:

d/5 = 6/ (6+6+3)

d/5 = 6/15 = 2/5

So d = 2.

Also by similar triangles

b/5 = 12/15 = 4/5

So b = 4.

8 0
3 years ago
Write the equation of the line in slope-intercept form that has: slope: -1 and point: (1, 1)
lara31 [8.8K]

Answer:

f(x) = -1x + 1

Step-by-step explanation:

f(x) = mx + b

the equation above is slope intercept form. in order to make it you need a slope and a y intercept. you were given the slope, so now you need a y intercept. but where would you find that???  look no farther than the point you were given, (1,1). the y intercept is the second number in the parentheses. next you take your slope and your y-intercept and place them in.

f(x) = -1x + 1

hope i could help

3 0
3 years ago
2/5 of a Number is what percentage of that number<br><br> HELP
Nata [24]

Answer: 40%

Step-by-step explanation: 100 ÷ 5 = 20 so 20 × 2 = 40

7 0
3 years ago
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