Mathematics: 2pairs of goggles and 3 swimming caps cost $60.30.3 pairs of goggles and 5 swimming caps cost $95.20.find the cost of a swimming cap.

2pairs of goggles and 3 swimming caps cost $60.30.3

Ответ:

guest42201

12.03.2022

If you look at the first formula we could write it as
$g = \frac{60.3}{2} - \frac{3s}{2}$
And if you write this instead of the g in the second equation you get
$3(\frac{60.3}{2} - \frac{3s}{2} ) + 5s = 95.2$
$\frac{180.9}{2} - \frac{9s}{2} + 5s = 95.2$
5s - 4.5s = 95.2 - 90.45

$s = \frac{4.75}{0.5}$
s = 9.5

Swimming cap costs $9.5

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Ответ:

jonesmegan526

22.01.2022

Mathematics

3/4 teaspoon of almond extract

Step-by-step explanation:

In order to solve this problem, you need to convert the decimal measurement to a fraction measurement.

To do so, we need to convert the number 0.75 to a fraction. We can do this by writing it as 0.75 over 1.

Next we multiply both the numerator and denominator in 0.75/1 by 100. (We do this because the last digit in the decimal is in the hundredths place)

0.75 x 100 = 75 1 x 100 = 100

So now we have the fraction 75/100. From here all we have to do is simplify the fraction.

75/100 simplified is 3/4.

So using your tools, you would measure 3/4 teaspoon of almond extract.

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2pairs of goggles and 3 swimming caps cost $60.30.3 pairs of goggles and 5 swimming caps cost $95.20.find the cost of a swimming cap.

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