.1x+.2y=-1
.5x-.9y=6.4
×-5 equation .1x+.2y=-1
-.5x-y=5
.5x-.9y=6.4
solve by elimination
-1.9y=11.4
÷-1.9 both sides
y=-6
solve for X
.1x+.2 (-6)=-1
.1x-1.2=-1
+1.2 both sides
.1x=.2
÷ 1 both sides
x=2
plug into 2nd equation to see if it's true
x=2
y=-6
0.5(2)-0.9(-6)=6.4
1+5.4=6.4
6.4=6.4 answers hold true
Answer:
Which sum or difference is equivalent to the following expression?
5 minus 3 x over 5
A. 1 + three-fifths
B. 1 + 3 x over 5
C. 1 – 3 x over 5 *My answer
D. 25 – 15x
I took the test and I got it right
For question 1, the formula for that is m1= 1/2(a-b). 106 being A and 62 being B. You should get m1=.5*(106-62) which equals B.22
Answer:
-24
Step-by-step explanation:
You are just counting by two's.
Answer:
is there anymore to the question?
Step-by-step explanation:
