you could use this equation to help you solve it;
x + (x + 42) = 138
the first step is to combine like terms;
2x = 138 -42
2x = 96
X = 96/2
X = 48
we already solved for x now substitute it in the equation I gave you.
48 + (48 + 42) = 138
48 + 90 = 138
hope it helped...if you have any concerns just let me know:)
Answer:
x = -14
Step-by-step explanation:
x/2 = -7
Multiply each side by 2 to get the x by itself
x = -7 * 2
x = -14
For this case the real step will be given by:
(9.75) * (2.25) * (10) = $ 219,375
Therefore, the best approximation is given by:
(10) * (2) * (10) = $ 200
The difference is:
219,375 - 200 = $ 19,375
Answer:
the best estimate of how many dollars Irina earns each month is:
10 × 10 × 2 = 200
∠1 and ∠2 are complementary.
∠1 + ∠2 = 90°
Question a:
∠1 = 23°
∠2 = 90 - 23 = 67°
Ans: 67°
Question b:
∠1 = x
∠2 = 2x + 3
x + 2x + 3 = 90
3x + 3 = 90
3x = 90 - 3
3x = 87
x = 29
∠1 = 29°
∠2 = 2(29) + 3 = 61°
Ans: ∠1 = 29°, ∠2 = 61°