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3 years ago

If m=a/b, m=18, and a=7, find b

Mathematics

2 answers:

garik1379 [7]3 years ago

4 0

Answer:

Step-by-step explanation:

You will move the 7 to 18 but bc there is a equal sign you will change the positive sign to negative and just solve -7 plus 18 you will get 11 and that’s b

natta225 [31]3 years ago

3 0

Answer:

Step-by-step explanation:

18 = 7/b

18b=7

b=7/18

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Which question is a statical question

kolbaska11 [484]

Answer:

B is a statistical question

Step-by-step explanation:

A and C ask for qualitative data or categorical data

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We obviously use numerical data for statistical work, so B is the answer

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3 years ago

At the beginning of the month, Lily has $4,578. By the end of the month, she only has $947 left over. How much money did she spe

alisha [4.7K]

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3 years ago

Read 2 more answers

a person invest in 9000 in a bank. the bank pays 5% interest compounded semi annually. to the nearest tenth of a year, how long

QveST [7]

Answer:

10.1 years.

Step-by-step explanation:

It is given that,

Principal = 9000

Rate of interest = 5%

No. of times interest compounded = 2 times in an year

Amount after certain time = 14800

The formula for amount:

$A=P(1+\frac{r}{n})^{nt}$

where, P is principal, r is rate of interest, n is no. of times interest compounded in an year and t is time in years.

Substitute the given values in the above formula.

$14800=9000(1+\frac{0.05}{2})^{2t}$

$\frac{14800}{9000}=(1+0.025)^{2t}$

$1.644=(1.025)^{2t}$

Taking log both sides.

$\log(1.644)=\log(1.025)^{2t}$

$\log(1.644)=2t\log(1.025)$ $[\because \log a^b=b\log a]$

$\frac{\log(1.644)}{2\log(1.025)}=t$

$t=10.066$

$t=10.1$

Therefore, the required time is 10.1 years.

3 0

3 years ago

What name best describes a pencil a line segment or parallel lies or a point or a ray

Yuliya22 [10]

The answer would be line segment.

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3 years ago

What is 4/5×24/12 equal to and simplified

klasskru [66]

It should be 8/5 cause 4/5 times 24/12= 4/5 times 2/1. then u multiply.

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3 years ago