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3 years ago

What ratio is equal to 7/8

Mathematics

1 answer:

Aneli [31]3 years ago

3 0

21:28 is equal to 7:8

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Mark said he can decompose the fraction 5/6 into three numerator.Is this possible? Explain.

OlgaM077 [116]

Ni because if you divide or mulriply the denominator you have to multiply or divide the numerator by the same amount. It is not possible dince you can divide the denominator by 2 to get 3 but you cant divude 5 by 2 and get an evn number

4 0

3 years ago

What's -96= -6 (8 - k)

Zanzabum

Divide both sides with -6 to then get 16=8-k. Then subtract 8 to both sides. to get 8=-k. Finally, divide both sides by -1 to get your answer, -8=k.

7 0

3 years ago

PLEASE HELP ASAP PLEASE HELP IM ON A TEST!!!!

qaws [65]

Answer:

2,520 meters

Step-by-step explanation:

Just multiply :)

6 0

2 years ago

Depreciation

hammer [34]

Answer:

a) $y=-3950\cdot{x}+21500$

b) f(x) $=21500\cdot{(0.7953)^x}$

c) Year 1: Linear $17550, exponential $17099

Year 4: Linear $5700, exponential $8601

d) Exponential model

e) The linear model depreciates the value quicker than exponential model long term around 4 years

Step-by-step explanation:

a) At year 0 the price is 21500 and at year 2 the price is 13600

WE can use points (0,21500) and (2,13600)

We can determine the gradient

$m=(13600-21500)/(2-0)=-3950$

We can use the point slow formula:

$y-y_1=m\cdot{(x-x_1)}$

$y-21500=-3950\cdot{(x-0)}$

$y=-3950\cdot{x}+21500$

b) We can use the following equation:

f(x) $=a\cdot{(1+r)^x}$

f(x) is the depreciation value after amount of time t, a is the new value, r is the rate of depreciation and x is the time.

$13600=21500\cdot{(1+r)^2}$

$r=-0.2047$

The depreciation rate is 20.47% and is negative because it decreases the new value of the car

c) Year 1:

$y=-3950\cdot{1}+21500=17550$

f(x) $=21500\cdot{(0.7953)^1}=17099$

Year 4:

$y=-3950\cdot{4}+21500=5700$

f(x) $=21500\cdot{(0.7953)^4}=8601$

d) Year 2

$y=-3950\cdot{2}+21500=13600$

f(x) $=21500\cdot{(0.7953)^2}=13598$

3 0

2 years ago

3 $15.60 to $11.70X ХFind each percent change. (Increase or Decrease?). Round to thenearest whole percent.Example: 25% increase

Ksivusya [100]

The percentage change from $15.60 to $11.70 is computed as follows:

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6 0

1 year ago