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3 years ago

If Y = 6x + 4 and 6x + 8 = 44, then Y=

2 answers:

8 0

Assuming second equation is 6x+8y=44

so first divide 2nd eqation by 2 to make it eqaier
3x+4y=22

sub 6x+4 for y

3x+4(6x+4)=22
3x+24x+16=22
minus 16 both sides
27x=6
divide both sides by 27
x=2/9

sub back

y=6x+4
y=6(2/9)+4
y=12/9+4 (4=36/4)
y=48/9

Andru [333]3 years ago

3 0

Y=40 and x= 6
Good luck

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Find the amount in an account if 7,650 is invested at 9.15 percent compounded quarterly for 8 years and 6 months

storchak [24]

We have been given that in an account an amount of 7,650 is invested at 9.15 percent compounded quarterly for 8 years and 6 months.

We will use compound interest formula to find our answer.

$A=Pcdot(1+\frac{r}{n}) ^{nT}$ ,

Where, P= principle amount, A= amount after T years, n= period of compounding and r = interest rate (decimal).

Let us substitute our given values in our formula.

$A=7650(1+\frac{0.0915}{4} )^{(8.5\times4)}$

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2 years ago

How to do this question??

dusya [7]

I'm going to suppose that this is asking for the volume.
The formula to find volume for a cylinder is V= pi r 2(squared) h
The radius is 10cm and the height is 14cm
Then plug the numbers in
So you should get V=3.14 x 10(squared) x 14
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