Answer:
The first number is −13 and the second number is −6
Step-by-step explanation:
The first number is −13 and the second number is −6
<u>Explanation:</u>
<u>Let's let the first number be n and the second number be called m.</u>
<u>Then, from the first sentence we can write:</u>
n = m − 7
<u>and from the second sentence we can write:</u>
2n = 6m + 10
<u>Substitute m − 7 for n in the second equation and solve for m:</u>
2(m − 7) = 6m + 10
2m − 14 = 6m + 10
2m − 14 − 2m − 10 = 6m + 10 − 2m − 10
−14 −10 = 6m −2m
−24 = 4m
-24/4 = 4m/4
m= −6
<u>Now substitute −6 for m in the first equation and calculate n:</u>
n = −6 −7
n = -13
Answer:
x =10
Step-by-step explanation:
7(3x-1)-(x+5)
21x-7-x+5
20x-2=-52
x=20÷2
Answer:
9 sections
Step-by-step explanation:
6÷2/3
6/1×3/2
18/2
9
Answer:
x = ±√10i (i outside the radical), or approximately ±3.62i, or no solution depending on your class.
Step-by-step explanation:
x^2 + 10 = 0
x^2 = -10
x = ±√-10
x = ±√10i (i outside the radical), or approximately ±3.62i.
The solution is not real.
If you meant x^2 - 10 = 0 then x = ±√10 or approximately ±3.62. This solution is real.
Answer:
2.25
Step-by-step explanation:
1.5 x 1.5 = 2.25