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Vika [28.1K]
3 years ago
12

I will give you 10B points plus mark someone again for the Brainliest if you get this right. a:15 b:7 c:4

Mathematics
1 answer:
insens350 [35]3 years ago
4 0
<h2><em>Answer:</em></h2>

<em>For </em><em>this </em><em>expression,</em><em>a</em><em>=</em><em><u>1</u></em><em><u>5</u></em><em>,</em><em>b=</em><em><u>7</u></em><em><u> </u></em><em>and </em><em>c=</em><em><u>4</u></em>

<h2><em>Hope </em><em>it</em><em> helps</em></h2>

<em>Good </em><em>luck</em><em> on</em><em> your</em><em> assignment</em>

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Ron's piano lesson starts in 2 hours. It takes him 30 minutes to get to the lesson. He has
RideAnS [48]

Answer:

2 hours=120 mins

120-(45+25)

120-(70)

50

Ron has enough time to finish his homework and walk the dog before his lesson. Ron should overestimate the total time needed. Since Ron has 50 minutes to spare he could add 25 to home work time and another 25 to walking his dog. he still ha time to do both.

4 0
3 years ago
Find all points having an x-coordinate of 2 whose distance from the point (-1,-2) is 5
mariarad [96]
The\ equation\ of\ the\ circle:(x-a)^2+(y-b)^2=r^2\\\\where\ (a;\ b)\ -the\ coordinates\ of\ the\ center;\ r-the\ radius\\-----------------------------\\(-1;-2)-the\ center\ of\ the\ circle\\r=5\\\\The\ equation:(x+1)^2+(y+2)^2=5^5\\\\Put\ x=2\ to\ the\ equation:\\\\(2+1)^2+(y+2)^2=25\\3^2+(y+2)^2=25\\9+(y+2)^2=25\\(y+2)^2=25-9\\(y+2)^2=16\iff y+1=\pm\sqrt{16}\\\\y+1=-4\ or\ y+1=4\ \ \ \ \ |subtract\ 1\ from\ both \sides\\y=-5\ or\ y=3\\\\Answer:(2;-5)\ and\ (2;\ 3).
5 0
3 years ago
Solve 8x+2y=13 and 4x+y=11 using substitution
Aleonysh [2.5K]

Answer:

No Solution

Step-by-step explanation:

8x+2y=13                         4x+y=11               Subtract 4x on both sides to isolate y

                                        y=-4x+11       <---- Substitute this equation into the                                            

                                                                     equation 8x+2y=13

8x+2(-4x+11)=13

8x-8x+22=13

22=13 (not true)

No Solution          

                     

4 0
3 years ago
Lisa earns $2.50 a week and lives in a state that taxes and come at 5%. How much does Lisa pay in state tax each week?
vaieri [72.5K]

Answer:

Step-by-step explanation:

Weekly tax that Lisa pay is 5% of her weekly earning at $2.50

= 5/100× $2.50=$0.125

7 0
3 years ago
2x + 4 - 3x + 2 + 3x
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Answer:

factor the expression:2(x+3

simply the expression:2x+6

Step-by-step explanation:

tell me if you don't get it

7 0
3 years ago
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