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nikitadnepr [17]
4 years ago
8

Ill mark as brainiest :)

Mathematics
1 answer:
Inessa05 [86]4 years ago
6 0

Answer:

1 ruler costs $0.60

Step-by-step explanation:

$20-$4.70=$15.30

Calculator =$7.50

3 Packs of Pens = $1.80 each

4 rulers= x each

$7.50 + 3($1.80) + 4x = $15.30

7.50 + 5.40 + 4x = 15.30

12.90 + 4x = 15.30

4x = 2.40

x = 0.60

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The temperature of an oven went from 280 to 350 what was the percent increase in temperature
Setler79 [48]

Answer:

25% Increase

Step-by-step explanation:

[(350 - 280) / 280] × 100% = 0.25 × 100% = 25%

7 0
3 years ago
Read 2 more answers
2x+7=16<br> as a improper fraction simplified
lara31 [8.8K]

Answer:

9/2 or 4.5

Step-by-step explanation:

8 0
3 years ago
Find the mean, median, mode and range of 2,2,6,15,38,39
Natalija [7]

Answer:

10.5

Step-by-step explanation:

2,2,6,15,38,39

6 and 15 are in the middle so add them

21 then divide by 2

10.5

6 0
3 years ago
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Solve for P:<br><br> 9(p−4)=−18<br><br> Please Explain
vekshin1

Answer:

<em>p</em> = 2

Step-by-step explanation:

Happy to help.

When we have numbers in parenthesis, we generally want to deal with those first. However, we can hit a rough patch when a variable is in there. Consider this:

2(3 + 4) = 2(7), or 14.

But, the two can also be distributed into both numbers in the parenthesis, like this:

2(3 + 4) = 2*3 + 2*4

That leaves us with the same answer—14! We can apply this to a variable, and that will help us figure out 9(<em>p</em> - 4), or the left side of your equation you presented.

9(<em>p</em> - 4) = -18

9*<em>p</em> - 9*4 = -18

9<em>p</em> - 36 = -18

Add 36 on both sides to isolate the variable (in this case, <em>p)</em>

9<em>p</em> = -18 + 36

You can also write it like this; 9<em>p</em> = 36 - 18

9<em>p</em> = 18

Divide 9 to isolate <em>p</em>

<em>p</em> = 2

So, we would get (<em>p</em> = 2). Make sure to practice a few more questions like these to really get the hang of it—you'll be using this a lot in the future!

Good luck!

3 0
3 years ago
Find the corresponding output for the function g.
Ierofanga [76]

Answer:

20

Step-by-step explanation:

The question is simply asking you to plug 6 into the function.

g(x) =x^2-16

g(6) = 6^2-16 = 20

3 0
2 years ago
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