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natka813 [3]
3 years ago
6

Tiara earns $33 washing 3 cars. At this rate, how much does Tiara earn washing 9 cars?​

Mathematics
2 answers:
blondinia [14]3 years ago
6 0

Answer:

<h2>$99 (Verified Answer) ✅</h2>

Step-by-step explanation:

The best way to solve this is to use a proportion. However, since this is a rate, we could also find the unit rate and multiply it by the number of cars Tiara is washing.

<h3><u>Method 1: Proportion</u></h3>

\frac{33}{3}  = \frac{x}{9}

3x = 33 x 9

3x = 297

Now, we simply divide by 3 to get $99.

We can check this by substituting the value of x in the original proportion.

3(99) = 33 x 9

297 = 297 ✅

<h3><u>Method 2: Unit Rate</u></h3>

The other way to solve this is to divide the whole expression by the number of cars to find the unit rate. In other words, how much money does she get for washing 1 car. We can then multiply this by the number of cars to get the answer.

$33/3 for 3/3 cars

$11 for 1 car

Now, we will multiply by the number of cars she washes in this question, which is 9

$11 x 9 = 99 for 1 x 9 cars

$99 for 9 cars

Again, we have the correct answer, which we have already verified by the process above. As you can see, both methods work. However, the top method is easier and since it uses algebra, is  almost foolproof, so long as the algebraic processess are followed.

<h2>Hope this answer has helped, please mark it brainliest if it did :)</h2>
kupik [55]3 years ago
5 0

Answer:

$99

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Lo que debemos hacer en este caso es dividir la cantidad total de panchos primero por la cantidad de unidades de salchichas que vienen en su paquete y segundo por la cantidad de unidades de panes para panchos que vienen en su paquete, si el resultado nos da un numero entero podemos decir que usa una cantidad completa de paquetes de salchichas y de panes:

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