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Lesechka [4]
3 years ago
5

Solve 9y-4x-9=0 steps and answer please

Mathematics
2 answers:
abruzzese [7]3 years ago
6 0
-4x + 9y - 9y + -9y = 0 + -9y
-4x - 9 = -9y
-4x - 9 + 9 = -9y + 9
-4x/-4 = -9y + 9/-4
x = 9/4y + -9/4
luda_lava [24]3 years ago
3 0
Step 1: Add 9 to both sides.<span><span><span><span><span>−<span>4x</span></span>+<span>9y</span></span>−9</span>+9</span>=<span>0+9</span></span><span><span><span>−<span>4x</span></span>+<span>9y</span></span>=9</span>Step 2: Add -9y to both sides.<span><span><span><span>−<span>4x</span></span>+<span>9y</span></span>+<span>−<span>9y</span></span></span>=<span>9+<span>−<span>9y</span></span></span></span><span><span>−<span>4x</span></span>=<span><span>−<span>9y</span></span>+9</span></span>Step 3: Divide both sides by -4.<span><span><span>−<span>4x</span></span><span>−4</span></span>=<span><span><span>−<span>9y</span></span>+9</span><span>−4</span></span></span><span>x=<span><span><span>94</span>y</span>+<span><span>−9</span>4</span></span></span>Answer:<span>x=<span><span><span>94</span>y</span>+<span><span>−9</span><span>4</span></span></span></span>
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Answer:

36 points each day.

Step-by-step explanation:

We have been given that we must accumulate 790 points to achieve our goal this month.            

To find the number of points earned each day, on average, we will divide total number of points achieved in a month by number of business days we worked.

\text{ Points earned each day on average}=\frac{790}{22}

\text{ Points earned each day on average}=35.9090909\approx 35.91    

If we need an integer answer, we can round 35.91 to 36. Therefore, we must  earn 36 points each day, on average to meet our goal.  


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$0.61

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1. Find the sales price of each store by multiplying the regular price by the % off to find the discount - then subtract.

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