b. 1/3
c. 2/3
d. 1
(PLEASE HELP AND PLEASE EXPLAIN)!!!
6a+b = 4
5a + 2b = 1
The value of the unknown variables a and b in given equations are 1 and -2 respectively.
An equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
Given are two equations,
6a+b = 4......(i)
5a + 2b = 1.......(ii)
Solving them by using substitution method,
6a+b = 4
b = 4-6a......(iii)
Using equation (iii) in equation (ii)
5a + 2(4-6a) = 1
5a+8-12a = 1
-7a = -7
a = 1
Put a = 1 n eq(iii)
b = 4-6·1
b = 4-6
b = -2
Hence, The value of the unknown variables a and b in given equations are 1 and -2 respectively.
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Answer:
X = 1
Y = -2
Step-by-step explanation:
Use simultaneous equations to work out.
Answer:
1/0.04 = 25
Step-by-step explanation:
Answer:
Step-by-step explanation:
well 1/4% wouldnt be 25% because they are 25% = 0.25 = 1/4
the percentage sign changes everything
since it is 1/4% rather than 1/4 by itself
1/4% = 0.25%
if you want to know the percent as a decimal you move the "." to the left twice
(or divide by 100)
so that means that the decimal of 0.25% would be 0.0025
B) Parallel lines
C) Horizontal lines
D) Intersecting lines
Answer:
B) Parallel lines
Step-by-step explanation:
the lines are parallel because the lines don't cross each other and are straight up and down.
skew line- a line on a shape that is not parallel and does not intersect.
parallel- when lines are straight up and down and don't cross each other. example ||
horizontal- when lines are straight left to right and don't cross each other. example =
intersecting- when lines cross each other.