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4 years ago

The ratio of 1.2 to 32 is the same as the ratio of 4.8 to

Mathematics

1 answer:

sweet-ann [11.9K]4 years ago

8 0

Answer:

The ratio between 36 kg and 24 kg = (36 kg)/(24 kg)

= 36/24, [both numerator and denominator are divided by 12]

= 3/2

= 3 : 2.

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4/5 divided by 3 fraction.......

astra-53 [7]

Answer:

4/15

Step-by-step explanation:

$\frac{\frac{4}{5} }{3}=\frac{4}{5}(\frac{1}{3})=\frac{4}{15}$

5 0

3 years ago

A countries population in 1991 was 147 million. In 1998 it was 153 million. Estimate the population in 2017 using the exponentia

scoundrel [369]

Answer:

The population in 2017 is 171 million

Step-by-step explanation:

Let's assume population starts from 1991

so,

initial population is 147 million

so, $A=147$

we can use formula

$P=Ae^{kt}$

we can plug A=147

$P=147e^{kt}$

In 1998:

t=1998-1991=7

$P=153$

now, we can plug these values into formula and find k

$153=147e^{7k}$

Divide both sides by 147

$\frac{147e^{7k}}{147}=\frac{153}{147}$

$e^{7k}=\frac{51}{49}$

$\ln \left(e^{7k}\right)=\ln \left(\frac{51}{49}\right)$

$k=\frac{\ln \left(\frac{51}{49}\right)}{7}$

$k=0.00572$

now, we can plug it back

and we get

$P=147e^{0.00572t}$

In 2017:

t=2017-1991=26

we can plug it and find P

$P=147e^{0.00572\times 26}$

$P=170.57$

So,

The population in 2017 is 171 million

5 0

3 years ago

1/2 x-12=4 Whats the linear equation

dsp73

Answer:

There is no y value so I think you mean to solve for x

Here's how we do it!:

1/2(x-12) = 4

Add 12...

1/2(x) = 4

Divide by 1/2...

x = 8!

x equals 8 in this case

5 0

3 years ago

Aubrey and Charlie are driving to a city that is 120 miles from their house. They have already traveled 20 miles, and they are d

mario62 [17]

Answer:

f(1.5) = _95_

The value indicates that after_1.5 hours_

hours of driving, Aubrey and Charlie will be_95_

miles from home.

Step-by-step explanation:

8 0

3 years ago

Write D +5+ D +5+ D +5+ D +5 as an equivalent expression by grouping like terms

Hitman42 [59]

Answer:4D+20

Step-by-step explanation:

Simplified by grouping the D’s and and 5’s

8 0

3 years ago