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alexira [117]
3 years ago
12

Which expression has a value of 17?

Mathematics
2 answers:
Ivahew [28]3 years ago
5 0
The second choice is the answer
fiasKO [112]3 years ago
5 0

Answer:

(12 + 15) \div 3 + 2 \times4

Step-by-step explanation:

<u>*Follow the PEMDAS order of operations*</u>

<u />\left(12+15\right)\div \:3+2\times \:4

<u>calculate within parentheses;-</u>

<u />\left(12+15\right)

=27\div \:3+2\times \:4

<u>Divide:-</u>

<u />27\div3=9

=9+2\times \:4

<u>Multiply:-</u>

<u />2\times \:4=8

=9+8

=17

<u>OAmalOHopeO</u>

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the ratio of men to women in a certain factory is 3 to 4. There are 198 men. How many workers are there?
vredina [299]
P r o p o r t i o n s

3:4 = 7

3/198 = 7/x

solve for x using cross multiplying

3/198 = 7/x

198(7) = 3x
1386 = 3x
/3         /3
   462 = x

Therefore, there are 462 workers.

Proof:

3/198 = 4/x
198(4) = 3x
792 = 3x
/3        /3
264 = x

264 + 198 = 462.

264 / 4 = 66
198 / 3 = 66
462 / 7 = 66

8 0
3 years ago
oscar bought some markers notebooks and packs of sticky notes for his office he bought the same number of markers as notebooks h
s2008m [1.1K]

The number of each kind of office supply oscar bought is = markers= (43.2 - 4.2y)/3 notebooks = (43.2-3x)/4.2, sticky notes = [43.2 - 4.2y)/3 + (43.2-3x)/4.2] + 3.

<h3>Calculation of total office supply</h3>

The number of markers he bought = X

The number of notebooks he bought= y

The number of sticky notes he bought= z= 3 + X+y

The amount he paid for markers = $1.05*X

The amount he paid for notebooks = $2.25*y

The amount he paid for sticky notes= $1.95 (3 + X+y)

The total amount he paid is = $49.05

That is;

$49.05 = $1.05x + $2.25y + $1.95 (3 + X+y)

$49.05 = $1.05x + $2.25y + $5.85 + $1.95x + $1.95y

$49.05 - $5.85 = 3x + 4.2y

$43.2 = 3x + 4.2y

Make X the subject of formula,

3x = 43.2 - 4.2y

X = (43.2 - 4.2y)/3

y= (43.2-3x)/4.2

z = [43.2 - 4.2y)/3 + (43.2-3x)/4.2] + 3

Learn more about addition here:

brainly.com/question/4721701

#SPJ1

4 0
2 years ago
Pls help with this question
Brrunno [24]
I wish i could help but i dont know the answer
7 0
3 years ago
This probability distribution shows the typical distribution of the number of shoes in a teenager's closet. Using the distributi
mote1985 [20]

Answer:

70%

Step-by-step explanation:

Total number of teenagers surveyed

12+20+38+20+10 = 100

Find the number of teenagers with 3 or fewer pairs of shoes

12+20+38 =70

P(3 or fewer) = teenagers with 3 or fewer/ total

                       = 70/100

                       = 70%

5 0
3 years ago
Read 2 more answers
SOMEONE PLEASE HELP ME ASAP PLEASE!!!!​
guapka [62]

Area of the triangle: 1/2 x 6 x 8 = 24 square ft.

Area of half circle: 1/2 x 3.14 x 4^2 = 25.12 square feet.

Total area : 24 + 25.12 = 49.12 square feet.

3 0
3 years ago
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