Mathematics: How many liters are in 21 cups? if 1L=4.2cups i don t understand how to do it

How many liters are in 21 cups? if 1L=4.2cups i don

k3thagoat

11.02.2022

5 L

Step-by-step explanation:

As given in question,

1 L can fill 4.2 cups.

So, 1 cup can hold $\frac{1}{4.2}$ L of fluid.

Therefore,

21 cups can hold = $\frac{1}{4.2}$ × 21

= 5 L

So, there is 5 L of fluid in 21 cups.

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jakobrobinette

11.12.2022

$0 = a \times {0}^{2} + b \times 0 + c$

$1 = a \times { - 1}^{2} + b \times ( - 1) + c$

$5 = a \times {1}^{2} + b \times 1 + c$

Solve for a,b, and c.

$y = 3 {x}^{2} + 2x + 0$

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