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My name is Ann [436]
3 years ago
9

Rosa earns $12 per hour. In 7.5 hours, she will earn x dollars. Which is a valid proportion that can be used to solve the proble

m?
Mathematics
2 answers:
Katarina [22]3 years ago
7 0

Answer:

\frac{\$12}{\text{1 hour}}=\frac{\$x}{\text{7.5 hour}}

x=\$90

Step-by-step explanation:

We have been given that Rosa earns $12 per hour. We can represent this information as:

\frac{\$12}{\text{1 hour}}

We are also told that in 7.5 hours, she will earn x dollars. We can represent this information as:

\frac{x}{\text{7.5 hour}}

Since proportion states that two quantities are equal, so we can set a proportion for our given quantities as:

\frac{\$12}{\text{1 hour}}=\frac{x}{\text{7.5 hour}}

Therefore, the proportion \frac{\$12}{\text{1 hour}}=\frac{\$x}{\text{7.5 hour}} can be used to solve the problem.

Let us solve for x.

\frac{\$12}{\text{1 hour}}*\text{7.5 hour}=\frac{x}{\text{7.5 hour}}*\text{7.5 hour}

\$12*7.5=x

\$90=x

Therefore, the value of x is $90.

Cerrena [4.2K]3 years ago
4 0
\bf \begin{array}{ccllll}
dollars&hours\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
12&1\\
x&7.5
\end{array}\implies \cfrac{12}{x}=\cfrac{1}{7.5}
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3 years ago
Least the containers from least to greatest capacity; 1.73, 2.061, 1.59, 2.1
RSB [31]

Answer:

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Step-by-step explanation:

Hello,

We know that 2 is higher than 1. So to pick the first ones we know it won't be the two numbers starting with a 2. We are left with two numbers : 1.73 and 1.59. <u>In this case we can multiply these two numbers by 100. We are allowed to do this only if we do it to all the numbers we are trying to figure out.</u> In this case, it is 1.73 and 1.59 (we are excluding the 2s). So we end up with : 173 and 159. This might help you. We obviously know that 173 is a larger number than 159.

So, we then proceed to the numbers starting with a 2. <u>In this case we can multiply both by 1,000 considering the fact that the number 2.061 has 3 digits after the dot.</u> This will make it easier for us. When we multiply both by 1,000 we end up with 2,061 and 2,100. We obviously know that 2,061 is smaller than 2,100.

I hope this helped

Kind regards,

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