Answer:
x=35
y=72.5
Step-by-step explanation:
y=(180-35)/2
y=145/2
y=72.5
Answer:
Step-by-step explanation:
We can solve this in either of two ways. I'll do both.
<u>Mathematically</u>
3x + 2y = 8
5x + 2y = 12
Rewrite either equation to isolate y. I'll use
3x + 2y = 8
2y = 8 - 3x
y = (8-3x)/2
Now use this value of y in the other equation:
5x + 2y = 12
5x + 2((8-3x)/2) = 12
5x + (8 - 3x) = 12
2x = 4
x = 2
Use x=2 to find y:
y = (8-3x)/2
y = (8-3*(2))/2
y = (8-6)/2
y = 1
The point is (2,1)
<u>Graphically</u>
Graph the two equations and find the point they intersect. See attachment.
We obtain the same answer: (2,1)
Answer:
A decimal in the wrong place can change the value of a number COMPLETELY!
Step-by-step explanation:
for example
0.4 can be converted to 40 cents or 2/5, but if you change the decimal 0.04 converts to 4% or 1/25.
hope this helps!
Answer:
50
Step-by-step explanation:
8 x 4 + 9 -9 + 18
PEMDAS says multiply first
32 + 9 -9 + 18
Then add and subtract from left to right
41-9+18
32+18
50
P=2(W + L)
p= 2W + 2L
98=2W + 2(6W)
98=2W + 12W
98=W
98/14=14W/14
W=7
L= 6W
L = 6(7)
L= 42
CHECK
p=2(7 +42)
p=2(49)
p= 98
Area of a rectangle = W X L
Area of a rectangle = 7 X 42
Area of a rectangle = 294