49=-7k is equivalent to D because when you simplify both of them, you get -7=k
Answer:
13 1/2 hours
Step-by-step explanation:
4/6=9/x then find the rate and solve
Steps:
A=bh/2
A= (18ft)(6ft)
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2
A = 108
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2
A= 54ft^2
Answer: The first number is 4
Explanation: Since the sum of the two numbers is ten, x + y = 10
Also, since the difference of the two numbers is two, then x - y = 2
Since x - y = 2, another way to write that is x = y + 2 and since x is exactly the same as y + 2, we can plug in "y + 2" in place of x in the first equation (x + y = 10) to get (y + 2) + y = 10. Then we solve this equation by combining like-terms.
2y + 2 = 10
2y = 8
y = 4
Since x = y + 2, x = 4 + 2 or x = 6
I hope this helped you!
