Answer:
b
Step-by-step explanation: since i helped can i have brainlist please :D
Answer:
x = 3
Step-by-step explanation:
A parallelogram must have two pairs of parallel sides.
For this to be true, the alternate exterior angles of the diagonal must be congruent.
Hence the equation,
<u>10x + 4 = 13x - 5</u>
Simplify.
<u>9 = 3x</u>
<u>x = 3</u>
Step 1:<span>Simplify both sides of the equation.</span><span><span>2<span>(<span><span>3x</span>+1</span>)</span></span>=<span>3<span>(<span>2−x</span>)</span></span></span><span><span><span><span>(2)</span><span>(<span>3x</span>)</span></span>+<span><span>(2)</span><span>(1)</span></span></span>=<span><span><span>(3)</span><span>(2)</span></span>+<span><span>(3)</span><span>(<span>−x</span>)</span></span></span></span>(Distribute)<span><span><span>6x</span>+2</span>=<span><span>6+</span>−<span>3x</span></span></span><span><span><span>6x</span>+2</span>=<span><span>−<span>3x</span></span>+6</span></span>
Step 2: Add 3x to both sides.<span><span><span><span>6x</span>+2</span>+<span>3x</span></span>=<span><span><span>−<span>3x</span></span>+6</span>+<span>3x</span></span></span><span><span><span>9x</span>+2</span>=6</span>
Step 3:Subtract 2 from both sides.<span><span><span><span>9x</span>+2</span>−2</span>=<span>6−2</span></span><span><span>9x</span>=4</span>
Step 4:Divide both sides by 9.<span><span><span>9x</span>9</span>=49
hope it helps :)
</span>
to prove that 6720. Sin 40. Sin 60. 80 equals 3 you'd have to divide 16 by 20 multiply subtract both sides by 3 which is 24x + 6x + 8x + -14 equals 40 40 + 20 equals 16 - -40 equals 80 which equals to 3
In order to at least earn $90, Katie can work exercising horses for 6 hours and cleaning stalls for 6 hours.
Step-by-step explanation:
Let hours of exercising horses be x --> $5 per hour = 5x
Let hours of cleaning stalls be y --> $10 per hour = 10y
Total earning = 
Total hours = 12
<u>Equation 1:</u>
5x + 10y =
<u>Equation 2:</u>
x + y 
<em>1. Multiply equation 2 by -5</em>
x + y (*-5)
5x + 10y =
-5x - 5y 
5x + 10y =
<em>2. Solve</em>
-5x + 5x -5y + 10y = -60 + 90
5y = 30
y = 6
x + y = 12
x + 6 = 12
x = 6
Therefore, in order to at least earn $90, Katie can work exercising horses for 6 hours and cleaning stalls for 6 hours.
Keywords: Simultaneous, hours, equations
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