Answer:
x = -14
Step-by-step explanation:
= -7
multiply 2 on both sides
the 2's cancel out on the fraction side, leaving x = -7(2)
multiply -7 and 2 to get -14
x = -14
You would divide 585 by 65 to find rate he's going by, than multiply. <span />
1.
g > 6.4
<h3>Answer: A. 7 > 6.4</h3>
2.
y + 2 > 8 <em>subtract 2 from both sides</em>
y > 6
<h3>Answer: D. 7 > 6</h3>
3.
6 > z(10 - z)
A. z = 0 → 6 > 0(10 - 0) → 6 > 0 CORRECT
B. z = 1 → 6 > 1(10 - 1) → 6 > 1(9) → 6 > 9 FALSE
C. z = 2 → 6 > 2(10 - 2) → 6 > 2(8) → 6 > 16 FALSE
D. z = 3 → 6 > 3(10 - 3) → 6 > 3(7) → 6 > 21 FALSE
<h3>Answer: A. 0</h3>
4.
The list of factors of 24:
1, 24, 2, 12, 3, 8, 4, 6
<h3>Answer: D. {1, 2, 3, 4, 6, 8, 12, 24}</h3>
Answer:
4 hours
Step-by-step explanation:
The general formula for distance, rate and time is:
d = rt, where distance is the product of rate multiplied by time
Given that one train is moving at a rate of 70 mph and one is moving at a rate of 62 mph in the opposite direction, the combined distance over time is equal to 528 miles. Using the variable 't' for time:
70t + 62t = 528
Combine like terms: 132t = 528
Divide both sides by 132: 132t/132 = 528/132 or t = 4 hours
