Answer:
Step-by-step explanation:
we have

we know that
The sum of a quadratic equation and a linear equation will be a quadratic equation
so
Combine like terms

The percentage value of the decimals are 475%, 99% and 1040% respectively.
Data;
<h3>Conversion of Decimals to Percentage</h3>
a) 4.75
To convert a decimal value to percentage, all we simply need to do is multiply that number by 100.

b) 0.99
To convert this decimal value to percentage, we just need to multiply this number by 100.

c) 10.4
To convert this decimal value to percentage, we just need to multiply this number by 100.

Learn more on conversion of decimal value to percentage here;
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An equvilent equation
remember you can do anything to an equation as long asyou do it to both sides
assuming yo have
x+y=1 and
x-3y=9
mulitply both by 2
2x+2y=2
2x-6y=18
those are equvilent
ok, solve initial
x+y=1
x-3y=9
multiply first equation by -1 and add to 2nd equation
-x-y=-1
<u>x-3y=9 +</u>
0x-4y=8
-4y=8
divide both sides by -4
y=-2
sub back
x+y=1
x-2=1
add 2
x=3
x=3
y=-2
(3,-2)
if we test it in other one
2x+2y=2
2(3)+2(-2)=2
6-4=2
2=2
yep
2x-6y=18
2(3)-6(-2)=18
6+12=18
18=18
yep
solution is (3,-2)
Answer:
It's 8 the answer is 8
Step-by-step explanation: