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3 years ago

How do you solve Walt grew 10 centimeters in 1 year he is now 1.6 m tall how tall was he 1 year ago

1 answer:

5 0

If he grew 10 cm in 1 yr.....he would be 10 cm less then he is now.

1 m = 100 cm......so 1.6 m = (1.6 x 100) = 160 cm.

so he is 160 cm now......and 1 yr ago, he would be (160 - 10) = 150 cm....or 1.5 m.

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2 years ago

Read 2 more answers

A 20% apple juice drink is mixed with a 100% apple juice drink. The function f(x)=(2)(1.0)+x(0.2)2+x models the concentration of

luda_lava [24]

Answer:

17.5

Step-by-step explanation:

Given that:

20% apple juice drink is mixed with a 100% apple juice drink.

$f(x)=\dfrac{(2)(0.1)+x(0.2)}{2+x}$

represents the concentration of apple juice in the drink when $x$ gallons of 20% drink are added to 2 gallons of pure juice.

Also, given that 6 gallons of 20% drink are added to the 2 gallons of pure juice.

To find:

The concentration of apple juice in the drink = ?

Solution:

Given the function:

$f(x)=\dfrac{(2)(0.1)+x(0.2)}{2+x}$

and

$x=6\ gallons$

$f(x)=\dfrac{(2)(0.1)+6(0.2)}{2+6}\\\Rightarrow f(x)=\dfrac{0.2+1.2}{8}\\\Rightarrow f(x)=\dfrac{1.4}{8}\\\Rightarrow f(x)=\bold{0.175}$

In percentage, the concentration 17.5.

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2 years ago