Answer:
The number is 2
Step-by-step explanation:
Twice a number (z) = 2*z = 2z
Twice a number (z) added to 21 = 2z + 21
9 times the number added to 7 = 9z + 7
9z + 7 = 2z + 21
Subtract 2z form both sides
9z - 2z + 7 = 21
7z + 7 = 21
Subtract 7 from both sides
7z = 21 - 7
7z = 14
Divide both sides by 7
z = 14/7
z = 2
The shape is a trapezoid and its area formula is:
A =

h
a is a base length, b is another base length and h is the height.
A =

(10.8)
A = 81
So the area of the shape is 81yd²
Answer:
2x-3
Step-by-step explanation:
f(x) = 3x-1
g(x) = x+2
Find (f-g)(x), this means we need to subtract g from x.
(3x-1) - (x+2)
Subtract the like terms:
3x -x = 2x
-1 -2 = -3
Combine them to get 2x-3
Answer:
Ok ano po ba yan answer ko yan
Trucking company charges a flat rate of $250 per truck
and $1.25 for every mile driven
The company has a budget of less than $950
Let the truck drive for x miles in that one way trip then we can write

Hence the required inequality is
