Symbolab has a calculator that solves problems like that and works it out for you, to help understand it better :)
A.) Parallel lines has equal slopes, hence slope of required equation = slope of y = 2x - 4 = 2
required equation is y - y1 = m(x - x1)
y - 7 = 2(x - 4)
y - 7 = 2x - 8
y = 2x - 8 + 7
y = 2x - 1
Answer: = 11.88
This is a 3 step / 4 show workings.
10.7 + Percentage increase = 11%
10.7 + (11% × 10.7) = 10.7 + 11% × 10.7
(1 + 11%) × 10.7 = (100% + 11%) × 10.7
111% × 10.7 = 111 ÷ 100 × 10.7
111 × 10.7 ÷ 100 = 1,187.7 ÷ 100
11.877 ≈ 11.88
Answer: I choose B and A.
Step-by-step explanation:
B because it shows how to divide and then multiplies x by 15 to get the answer. A because it divides 9 by 100 and then it shows x and 15 percent plus One more.
Answer:
$12.5
Step-by-step explanation:
Bryanna has : $300
Since she has $250 more than Leon.
To get the amount that Leon has, Subtract $250 from $300. $300-$250=$50
So Leon has : $50
Leon has 4 times as much money as Andrew
To get the amount that Andrew has, Divide $50 by 4. $50÷4=$12.5
