3 years ago

12. Uche bought two books at A125 each. She was

Mathematics

1 answer:

liraira [26]3 years ago

4 0

The answer is D N750

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craige rose is an over-road truck driver. if he is paid 0.54 per mile, what is craig's total pay for the amount of miles

cricket20 [7]

if x = amount of miles driven

pay = .54*x

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4 years ago

If 8,a,b,27 are in geometric sequence, find the value of a and b.

wel

Answer:

a = 12 and b = 18

Step-by-step explanation:

Given that,

8,a,b,27 are in geometric sequence.

For a GP, the nth term is given by :

$a_n=ar^{n-1}$

Put n = 4

$a_4=ar^{4-1}\\\\a_4=ar^3\\\\27=8\times r^3\\\\r^3=\dfrac{27}{8}\\\\r=\dfrac{3}{2}=1.5$

Put n = 2,

$a_2=ar^{2-1}\\\\a=ar\\\\a=8\times 1.5\\\\a=12$

Put n = 3

$a_3=ar^2\\\\=8\times 1.5^2\\\\b =18$

So, the values of a and b is 12 and 18 respectively.

3 0

3 years ago

Lena [83]

2 x 2 = 1 the interception of it

4 0

3 years ago

1/10n-3/10=4/10 please help

BARSIC [14]

Answer:

n=7

Step-by-step explanation:

1/10n-3/10=4/10

1/10n-3/10+310=4/10+310

1/10n=7/10

10x1/10n=7x10/10

n=7

I hope this helps!

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3 years ago

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Setler [38]

Answer:

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Step-by-step explanation:

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3 years ago