Answer:
50 ft²
Step-by-step explanation:
If W is the width and L is the length, then:
L = W + 5
2L + 2W = 30
Solve the system of equations with substitution or elimination. Using substitution:
2(W + 5) + 2W = 30
2W + 10 + 2W = 30
4W = 20
W = 5
L = 10
The area of the rectangle is:
A = LW
A = 50 ft²
Answer:
7x−3=7k,x=7k+3,k∈ℤ
Step-by-step explanation:
3x ≡ 2 (mod 7)
3 is a solution, since 3×3−2=7.
All solutions are 3+7ℤ
y=3x−2/7=3(x−3)+7/7=3(x−3)/7+1
7x−3=7k,x=7k+3,k∈ℤ
Answer: $78,260
Explanation:
is her annual salary bi annually means ever two weeks and 52 weeks in a year so u divide 52 by two and multiply that by her biweekly salary
Answer:
3x + 100 < 2x - 250
Step-by-step explanation:
The problem said that Keisha's guess was "250 less than twice the number".
It was written as 250-2x, which is actually twice the number less than 250, because we are subtracting 2x. We just need to write it like this:
2x-250
So the inequality should be:
3x + 100 < 2x - 250
