Solve the simultaneous equations 2x + 3 = 13 4x +- y = -2
1 answer:
Answer:
x=5 and y=22
Step-by-step explanation:
2x+3=13
2x+3+−3=13+−3(Add -3 to both sides)
2x=10
=
(Divide both sides by 2)
x = 5
Substitute5forxin4x−y=−2:
4x−y=−2
(4)(5)−y=−2
−y+20=−2(Simplify both sides of the equation)
−y+20+−20=−2+−20(Add -20 to both sides)
−y=−22
=
(Divide both sides by -1)
y=22
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Answer:
1)
<em>Name two fractions that are closer to 1 than 1/2?</em>
We are asked to find two fractions that are closer to 1 than 1/2.
We know that the equivalent fraction to 1/2 is 5/10
and 1 can be written as 10/10.
Hence,
the fraction between 5/10 and 10/10 are:
6/10, 7/10, 8/10, 9/10
The fractions that are close to 1( i.e. 10/10) than to 1/2( i.e. 5/10) are:
8/10 and 9/10.
2)
<em>Name two fractions that are closer to 1 than to 0?</em>
We know that the equivalent fraction to 1 is 5/5.
also to 0 is 0/5
The fractions that lie between 0(i.e. 0/5) and 1( i.e. 5/5) are:
1/5, 2/5, 3/5 , 4/5
Hence the fractions closer to 1 than to 0 are:
3/5 and 4/5.
3)
<em>Name two other fractions that are closer to 0 than to 1/2?</em>
We know that the equivalent fraction to 0 is 0/10
and to 1/2 is 5/10
The fractions that lie between 0(i.e. 0/10) and 1/2(i.e. 5/10) are:
1/10, 2/10 , 3/10 , 4/10
Hence the fraction closer to 0 than to 1/2 are:
1/10 , 2/10.
4)
<em> Find two of your fractions that have a sum of about 1 1/2?</em>
We know that 1 1/2 can also be written as: 3/2
The two fractions such that they sum upto 3/2 are:
1/2 and 2/2 i.e.
Hence the two fractions are:
1/2 and 2/2
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