to find the area of a rectangle is LxW=A
plug in the given numbers you have
L = 7
W = x-8
A = 42
7 * x-8 = 42
7x-56= 42
solve for X
Answer:
D) -10
Step-by-step explanation:
We will assign g(x) to be equal to 25, and then solve for x:
25 = -3x-5
30 = -3x
10 = -x
-10 = x
So D is correct
The number of cuts from a 20% length is 2 and the number of 20' angle are needed in order to have the 100 pieces is 5
<h3>How to determine the number</h3>
From the information given;
The bricklayer needs = 100 pieces of angle
The number of cuts = 54
Length of cuts = 3/ 16'' Inches
a. To determine the number of cuts form a 20% length, we have to multiply the length by the percentage and by the initial number of cuts
= 20/ 100 × 3/ 16 × 54
= 0. 2 × 0. 1875 × 54
= 2. 0
The number of cuts would be 2
b. To determine the number of pieces of 20' angle to have 100 pieces we would divide the initial number of pieces by the angle
= 100/ 20
= 5 pieces
The number of pieces of 20' angle is 5
Thus, the number of cuts from a 20% length is 2 and the number of 20' angle are needed in order to have the 100 pieces is 5
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The equation that represents the scenario is:
Option 1: n + (n + 1) + (n + 2) = 9
Step-by-step explanation:
We have to convert the given statement in an equation. As the variable used in the choices is n, so we will also use n.
Let n be an integer
then
The next integer will be n+1
and next integer to n+1 will be n+1+1 = n+2
So,
putting it in equation form
Hence,
The equation that represents the scenario is:
Option 1: n + (n + 1) + (n + 2) = 9
Keywords: Variables, equations
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