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zhannawk [14.2K]
2 years ago
9

10

Mathematics
1 answer:
Nesterboy [21]2 years ago
8 0

Answer:

Step-by-step explanation:

5

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lawyer [7]

Answer:

8(3j-2)

Step-by-step explanation:

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Please help I dont understand ​
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Step-by-step explanation:

When it says y varies directly with x it just means that y and x are proportional/equal to each other. The constant of variation and the constant of proportionality are the same thing just different way of saying it so they can confuse you and make your life miserable. Since y and x are proportional to each other and the constant of proportionalty is -5 to make an equation that represents a line you use the formula y=mx+b. That is the slope of the line. With that formula let's first plus in the x so we have y=m2+b. The formula for direct variation is y=kx as well that's good to know and it's good to memorize all these formulas. Math becaomes easier when you have the process down pat and you just need to plug numbers into different equations, expressions, and scenarios. Do m = [y1 - y2] / [x1 - x2] and you'll get the answer.

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2 years ago
The mean height of plants is 18 inches. The height of seven plants are 12 inches, 13 inches, 15 inches, 15 inches, 17 inches, 23
ahrayia [7]

Answer:

25 inches

Step-by-step explanation:

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3 0
3 years ago
How can u use number patterns to find the least common multiple of 120 and 360
Natasha2012 [34]
A number pattern would be something that just gets repeated over and over 
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4 0
3 years ago
Maria sets a goal of jogging 17.5 miles this week she plans on running 2.75 miles each day for seven days if she follows her pla
Anit [1.1K]

Answer:

B

Step-by-step explanation:

So, to figure this out, we must find the total miles Maria ran in a week.

We know that she ran 2.75 miles each day.

She did this for 7 days.

Her goal was 17.5 miles.

So first, multiply the amount of days by the amount of miles per day:

7*2.75

=

19.25

So now we know that she ran a total of 19.25 miles in a week.

Since she onlu needed to run 17.5 miles, we can instantly rule out:

A - Runs less 17.5 miles

C - Runs exactly 17.5 miles

This leaves:

B - She runs 1.75 miles more than 17.5 miles

D - She runs 2.75 miles more than 17.5 miles

To figure out which on is correct, subtract her total miles by her goal:

19.25-17.5

=

1.75

So we know it must be:

B - She runs 1.75 miles more than 17.5 miles

This is because we figured out she ran an extra 1.75 miles.

Hope this helps! :)

6 0
3 years ago
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