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abruzzese [7]
3 years ago
15

Help with easy math!!! 20 points!

Mathematics
2 answers:
fenix001 [56]3 years ago
3 0

1 non proportion because y does not equal kx

Choice C

2. proportional y=4x

Choice B

3. proportional y=7x

Choice A

Vladimir [108]3 years ago
3 0

Answer:

c,b,a

Step-by-step explanation:


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Evaluate the expression.<br><br> |3| + |-1|<br> A) -2<br><br> B) -4<br><br> C) 2<br><br> D) 4
Kisachek [45]

Answer:

D) 4

Step-by-step explanation:

|3| + |-1| = 3 + 1 = 4 \\

4 0
4 years ago
2. A student usually saves $20 per month. He would like to reach a goal of saving $350 in 12 months. The student writes the equa
Zigmanuir [339]

Answer:

x = 9.17 (nearest hundredth)

The variable x is the amount the student needs to save each month in addition to his usual saved amount of $20.

Step-by-step explanation:

350 = 12(x + 20)

Multiply out brackets:  350 = 12x + 240

Subtract 240 from both sides:  110 = 12x

Divide both sides by 12:  9 1/6 = x

x = 9.17 (nearest hundredth)

The variable x is the amount the student needs to save each month in addition to his usual saved amount of $20.

3 0
2 years ago
The price of a fan is $15. This price is 27% lower than last week.
Goshia [24]

The price of fan was 20 Dollars 55 cents last week.

Step-by-step explanation:

Let,

The price last week = x

As the price is 27% lower than last week, therefore

(100%-27%) * Price last week = $15

73% * x = 15

Solving the percentage;

\frac{73}{100}*x=15\\ Multiplying\ both\ sides\ by\ 100\\100*\frac{73x}{100} = 15*100\\73x=1500\\Dividing\ both\ sides\ by\ 73\\\frac{73x}{73} = \frac{1500}{73} \\x= 20.55

The price of fan was 20 Dollars 55 cents last week.

Keywords: Percentage, multiplication.

Learn more about percentages at:

  • brainly.com/question/2140933
  • brainly.com/question/2142762

#LearnwithBrainly

5 0
3 years ago
Find the smallest integer value of X that satisfies the inequality of 6X&gt;7
Nastasia [14]

Answer:

  x = 2

Step-by-step explanation:

The solution set can be found by dividing the inequality by the coefficient of x.

  6x > 7

  x > 7/6

The smallest integer greater than 7/6 is 12/6 = 2.

The smallest integer solution is x = 2.

5 0
3 years ago
The circumference of a circle is 60? cm. what is the length of an arc of 140'?
My name is Ann [436]
I hope this helps you



Circumference =2.pi.r


60=2.3,14.r


r=30/3,14


Arc Length = 140/360.2.3,14.30/3,14


Arc Length =70/3
3 0
3 years ago
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