10x = 5 Answer: x = 1/2
−5 = x + 6 Answer: x = -11
22 = 22x Answer: x = 1
0 = −7x Answer: x = 0
−x = 7 Answer: x = -7
x/4 = 1/2 Answer: x = 2
x/5 = 20 Answer: x = 100
x/-2 = -5 Answer: x = 10
5x = 55 Answer: x = 11
−3x = 18 Answer: x = -6
12 = x -6 Answer: x = 18
A. $14.99 .. do $49.98/2 = $24.99 and then subtract $10.
B. $19.99 .. do $49.98-19 = $39.98 and then divide it by 2.
Answer:
-4,3.5
Step-by-step explanation:
1st one
x-2x-20 = 12
-x = 32
x=-4
2nd one
-15=15q-50 - 5q
35= 10q
q = 3.5
Answer:
ΔV = 0.36π in³
Step-by-step explanation:
Given that:
The radius of a sphere = 3.0
If the measurement is correct within 0.01 inches
i.e the change in the radius Δr = 0.01
The objective is to use differentials to estimate the error in the volume of sphere.
We all know that the volume of a sphere

The differential of V with respect to r is:

dV = 4 πr² dr
which can be re-written as:
ΔV = 4 πr² Δr
ΔV = 4 × π × (3)² × 0.01
ΔV = 0.36π in³
Answer:
0
Step-by-step explanation:
product is another word for +
decreased is another word for -
____________________________
(7 + 8) - x
so
(7+8) - 15
15 - 15
= 0