
Step-by-step explanation:
<h2><em>Factor the </em><em>expression</em></h2>
<em>
</em>
<h2><em>Separate into possible cases</em></h2>
<em>
</em>
<h2><em>Solve the equation</em></h2>
<em>
</em>
<h2><em>Find the union</em></h2>
<em>
</em>
<h2><em>there </em><em>for </em></h2>
<em>
</em>
<em>hope </em><em>it</em><em> help</em>
<em>#</em><em>c</em><em>a</em><em>r</em><em>r</em><em>y</em><em> </em><em>on</em><em> learning</em>
Answer:
21
Step-by-step explanation:
He will guess correctly 25% of the time.
He has 84 questions
25% of 84
.25 * 84
21
We should expect that he will get 21 questions correct
He can use:
a quarter and a dime (difference: 15)
a quarter and two nickels (difference: 20)
a dime and three nickels (difference: 5)
two dimes and a nickel (difference: 5)
Answer:
Step-by-step explanation:
5x + 9y = -11
3x + 9y = -3
5x + 9y = -11
-3x - 9y = 3
2x = -8
x = -4
-12 + 9y = -3
9y = 9
y = 1
(-4, 1)
Answer is C
Answer: B (104.50)
explanation: 5.5*3=16.5
5.5*9=49.5
5.5*7=38.5
16.5, 49.5, and 38.5 added all together is 104.5 or $104.50