Answer:
a.
Step-by-step explanation:
Answer:
The numbers are 61 and 54.
Step-by-step explanation:
Let the numbers be x and y.
Their sum is 115:
x + y = 115
Their difference is 7:
x - y = 7
We have a system of two equations in two unknowns.
x + y = 115
x - y = 7
Add the equations to eliminate y, and solve for x.
2x = 122
x = 61
Now replace x in the first equation with 61 and solve for y.
x + y = 115
61 + y = 115
Subtract 61 from both sides.
y = 54
Answer: The numbers are 61 and 54.
P=710ft
Side AB=310 ft
Side DC=310 ft
Side AD=side BC
P of rectangle is AB+DC+AD+BC
710=310+310+2AD
710=620+2AD
710-620=620+2AD-620
90=2AD
90/2=2AD/2
45=AD
Both sides are parallel so they are same
So other 2 sides are 45ft each.
Answer: A
Step-by-step explanation:
Each y value is half of the x value.
Answer:
see them bellow
Step-by-step explanation: