- How can you write a system of equations to model this situation?
Let y = <span>your pay </span>
<span> x = deliveries
</span>
Your equations would be written as:
<span>y=9.50*4 </span>
<span>y=2*4+3x </span>
- Which method should you sue to solve the system?
Substitution method
- How can you interpret the solution in the context of the problem
Substituting y for 9.50*4:
<span>9.50*4 = 2*4 + 3x </span>
<span>Simplifying: </span>
<span>38=8+3x </span>
<span>Solving: </span>
<span>30=3x </span>
<span>x=10
</span>
<span>Therefore, you need 10 deliveries to get the same pay as the competitor.</span>
Answer:
x = -6 and y = 9
Step-by-step explanation:
It is given that,
0.12x - 0.07y = -1.35 -----(1)
0.4x + 0.8y = 4.8 -----(2)
<u>To find the value of x and y</u>
eq(1) * 100 ⇒
12x + 7y = -135 -----(3)
eq(2) /0.4 ⇒
x + 2y = 12 -----(4)
eq(4) * 12 ⇒
12x + 24y = 144 ---(5)
eq(5) - eq(3) ⇒
12x + 24y = 144 ---(5)
<u>12x - 7y = -135 </u> -----(3)
0 + 31y = 279
y = 279/31 = 9
Substitute the value of y in eq(4)
x + 2y = 12 -----(4)
x + 2*9 = 12
x = 12 - 18 = -6
Therefore x = -6 and y = 9
Answer:
b) 48
Step-by-step explanation:
25% is Quartile 1, which can be found on the outer left line on the rectangle. Since Q1 is hovering over 50, it would be safe to assume the answer is 48.
37.5 + 37.5 = 75 ; also, 37.5 x 2 = 75
Answer:
no solution
Step-by-step explanation:
2(x+2)=-6+2x
distribute the 2 in the parentheses: 2x+4=-6+2x
add the -6 to the other side to get rid of it on the side that it is on: 2x+10=2x
then subtract the 2x: 10=0x or 10=0
the equation is not solvable
