Solve the system of equations and choose the correct ordered pair 4x-2y=-2 6x+3y=27
1 answer:
Start with the given
let's focus on the top equation first, we want to get either x or y alone. y would be easier here so let's do that.
here we simply divided everything by 2, then solved for y.
now we're going to plug this y into the second equation so that we only have an x!
now that we know what x is, we can plug it back into the first equation!! and we'll get our final answers
so our answer will be with the ordered pair (2,5)
let's focus on the top equation first, we want to get either x or y alone. y would be easier here so let's do that.
here we simply divided everything by 2, then solved for y.
now we're going to plug this y into the second equation so that we only have an x!
now that we know what x is, we can plug it back into the first equation!! and we'll get our final answers
so our answer will be with the ordered pair (2,5)
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Answer:
42%
first we find the totals of each gender which was indicated that there are 29 girls in total ...making it 71 boys there to make100 students .
then it is shown that 9 girls like biology and boys ...anon
20 boys prefer physics and out of the 29 students who like chemistry ..18 are boys which now gives us 38 boys out of 71 .
to get the boys who like biology u subtract 38 from their total which is 71 to get 33.
33 + 9 = 42
42/100 = 42%
Answer:
Step-by-step explanation:
Given
Represent the volume of the cylinder with V1 and the volume of the sphere with V2
So, from the first statement: we have:
and
To solve for , we simply substitute
for
in
Hence, the volume of the sphere is