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Semmy [17]
3 years ago
10

Solve question in photo. Mathematics help. last one

Mathematics
1 answer:
Alona [7]3 years ago
3 0
Easeier than last
y=2x+6
sub 2x+6 for y
3x-(2x+6)=6
3x-2x-6=6
x-6=6
add 6
x=12
sub
y=2x+6
y=2(12)+6
y=24+6
y=30

x=12
y=30
(x,y)
(12,30)



soltion is (12,30)
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Marizza181 [45]

Answer: 1215 miles

Step-by-step explanation:

405 miles in 5 hours is 81 mph so you multiply that mph by the amount of hours you want (15)  so 81 x 15 = 1215

3 0
3 years ago
Find the solution set of the inequality<br>4x - 1&lt;11.<br>​
Nikitich [7]

Answer:

x<3

Step-by-step explanation:

4x-1<11

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7 0
3 years ago
Read 2 more answers
0.5x -2 = 1.5x + 0.15
frutty [35]

Answer: x=−2.15

Step-by-step explanation : Alright Let's solve your equation step-by-step.

0.5x−2=1.5x+0.15

Step 1: Subtract 1.5x from both sides.

0.5x−2−1.5x=1.5x+0.15−1.5x

−x−2=0.15

Step 2: Add 2 to both sides.

−x−2+2=0.15+2

−x=2.15

Step 3: Divide both sides by -1.

−x

−1

=

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−1

x=−2.15<em>        hope this helped!- Alex</em><u> </u>

8 0
3 years ago
Did I do this correct???
kondor19780726 [428]
The answer is actually D. Since 2.5 is a side of each tiny block, there is 3 sides that you are going to multiply together. There is 5,2 and 4 because we are multiplying the length,width and side. So the length is 2.5*5=12.5 which was correct. The width is 2.5*4=10 which you had but you crossed it out. Then lastly you are looking for the side of the shape. 2.5*2=5. Now that I have everything I just need to multiply everything together. 12.5*10*5=625 in³. I hope this helped you! 
6 0
3 years ago
If y varies directly as x and y = 36 when x = 4,what is the constant of variation?​
Inessa05 [86]

Answer:

9

Step-by-step explanation:

Y ~ X

Y = KX

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7 0
3 years ago
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