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ololo11 [35]
2 years ago
9

I need help plz :( i will give brainlist​

Mathematics
1 answer:
Genrish500 [490]2 years ago
5 0

Answer:

it's C because the slopes are the same but the y intercepts are different

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GIVING BRAINLIEST Write a proportion that could be used to solve for each variable. Then solve. 7 pencils for $1.68 p pencils fo
Evgesh-ka [11]

The proportion that could be used to solve for the variable is:

\frac{7}{1.68}=\frac{p}{2.88} ; p = 12 ⇒ b

Step-by-step explanation:

Direct proportion means that two (or more) quantities increase or decrease in the same ratio

  • y = k x is the equation of direct proportion, where k is the constant of proportionality
  • \frac{y_{1}}{x_{1}}=\frac{y_{2}}{x_{2}}=k is the another way to write a proportion

The number of pencils and the cost of them is increased together or decreased together

∴ The number of the pencils and their costs are in direct proportion

- By using the 2nd rule above

∵ The cost of the 7 pencils is $1.68

∵ The cost of p pencils is $2.88

∴ \frac{7}{1.68}=\frac{p}{2.88}

The proportion that could be used to solve for the variable is: \frac{7}{1.68}=\frac{p}{2.88}

∵ \frac{7}{1.68}=\frac{p}{2.88}

- By using cross multiplication

∴ p × 1.68 = 7 × 2.88

∴ 1.68 p = 20.16

- Divide both sides by 1.68

∴ p = 12

The value of variable p is 12

Learn more:

You can learn more about the proportion in brainly.com/question/10708697

#LearnwithBrainly

8 0
3 years ago
Two classes have a total of 50 students. One class has 6 more students than the other. How may students are in the larger class
givi [52]
Subtract 6 from 50:
50-6 = 44
Divide 44 by 2:
44/2 = 22

add 6:

22+6 = 28

There is 22 in the smaller class and 28 in the larger class.
5 0
3 years ago
A line with a slope of –1 passes through the point (–10, 0). What
slega [8]

Answer:

y= -x - 10

Step-by-step explanation:

provided in photo

4 0
3 years ago
Martene got a small aquarium for her birthday. The aquarium is a right rectangular prism 18.5cm long by 15cm wide. Martene put 3
natita [175]

Equation for this problem:            Total 3 cubed / (L x W)

So 18.5cm x 15cm = 277.5 is the product of L and W. Now you need to devide the total by 277.5 which is 14. So the aquarium is 14 cm deep.

7 0
3 years ago
How do you decompose 7 x 7
Elis [28]
I think u multiply and then divide by one of its multiples
8 0
3 years ago
Read 2 more answers
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