Find the upper bound for the following lengths: a) 14.2 cm correct to 1 decimal place.
b) 43.18 cm correct to 2 decimal places.

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Ответ:

aly2008

11.08.2020

Mathematics

3 Teaspoon

Step-by-step explanation:

Each $\dfrac{1}{4}$ sheet of cake requires 0.75 teaspoon of baking soda.

Therefore, 1 whole cake will require x teaspoon of baking soda.

Expressing it as a ratio

$\frac{1}{4}:0.75=1:x\\\frac{1/4}{0.75}=\frac{1}{x} \\\text{Cross Multiply}\\\frac{1}{4}*x=0.75\\x=0.75*4\\x=3$

A whole cake will need 3 teaspoon of baking soda.

Since the expressions are not provided, it is hoped that you will be able to learn from the above. You can comment if you need further help.

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Find the upper bound for the following lengths: a) 14.2 cm correct to 1 decimal place. b) 43.18 cm correct to 2 decimal places.