Answer:
17
Step-by-step explanation:
The two values are equal, so just solve for x using
2x+32=4x-2
D economic growth was threatened
Answer:
<u>x = 16</u>
Step-by-step explanation:
<em>if we want the value of x so</em>
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<em>(4x + 1 ) = 65 (vertically opposite angles are same)</em>
<em>4x = 65 - 1</em>
<em>4x = 64</em>
<em>x= 64/4</em>
<em>x = 16</em>
The slope would be (3-1)/(6-4) or 1
Let a and b be the respective rates in bricks per minute for Alex and Bob separately.
Alex lays 4 bricks per minute more than Bob
a = b + 4
Working together, their rates scale by 3/4 and they achieve 15 bricks per minutes.
(3/4)(a + b) = 15
Two equations, two unknowns, we solve:
b = a - 4
(3/4)(a + a - 4) = 15
2a - 4 = (4/3) 15 = 20
2a = 24
a = 12
b = a - 4 = 8
Answer: Alex alone does 12 bricks per minute, Bob alone 8 bricks per minute
Check: a=b+4, good
(3/4)(12 +8)=(3/4)(20)=15, good