Answer:
B
Step-by-step explanation:
7x-4 is two times 2.5x+4
Answer:
<h2>12 computers = 24 students</h2>
Step-by-step explanation:
<h2>3 computers = 6 students</h2><h2>X computers = 24 students</h2><h2>cross multiply</h2><h2>6x = 3 × 24</h2><h2>6x = 72</h2><h2>divide both sides by 6</h2><h2>X = 12</h2>
Answer:
Use the distributive property on each side of the equation.
Explanation:
PEMDAS
Answer:
88
Step-by-step explanation:

The mean would be the sum of all the math quiz grades divided by the number of quizzes taken.
Solve for x:



Thus, Allen needs at least an 88 to obtain a mean of at least 90.
Answer:
115mm
Step-by-step explanation:
5/x = 3/69
5/x = 1/23
5*23 = x
115 = x