Finds how much is needed for 1 costume by dividing 6 3/4 by 3
6 3/4 /3 = 2 1/4 yards per costume.
Multiply yards per costume by 7:
2 1/4 x 7 = 15 3/4 yards total needed.
Answer:
32y
Step-by-step explanation:
0xy=0
If you change x or y on any number, you will get 0: 5*0=0, 100*0=0
So, 0+32y = 32 y
Let's solve your equation step-by-step.
<span><span><span>−<span>x^2</span></span>−<span>2x</span></span>=5
</span>Step 1: Subtract 5 from both sides.
<span><span><span><span>−<span>x^2</span></span>−<span>2x</span></span>−5</span>=<span>5−5
</span></span><span><span><span><span>−<span>x^2</span></span>−<span>2x</span></span>−5</span>=0
</span>Step 2: Use quadratic formula with a=-1, b=-2, c=-5.
<span><span><span><span>
</span></span></span></span><span>x=(<span><span>2±<span>√<span>−16)/</span></span></span><span>−<span>2</span></span></span></span>