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Mariulka [41]
3 years ago
15

Delilah does 841 jumping jacks in 4 minutes. She does her jumping jacks at a constant rate. How many jumping jacks can Delilah d

o per minute?
Mathematics
1 answer:
STatiana [176]3 years ago
4 0

841 jumping jacks per 4 minutes

\frac{841~jumping~jacks}{4~minutes}

Divide both sides by 4.

\frac{841}{4} \div \frac{4}{4} = \frac{210.25}{1}

Delilah can do 210.25 (or 210) jumping jacks per minute.

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The value of the expression 2b plus 4a minus a minus 2 plus 12b is 3a + 14b - 2.

Expression:

An expression is defined as the a combination of operators, constants and variables. And it may consist of one or more operands, and zero or more operators to produce a value.

Given,

Here we have the statement "2b plus 4a minus a minus 2 plus 12b".

Now, we have to find the simplified form of this statement.

In order to find the simplified form,

First we have to convert the statement into expression form, then we get

2b plus 4a minus a minus 2 plus 12b = 2b + 4a - a - 2 + 12b

Now, we have to combine the like terms, then we get,

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Perform the appropriate arithmetic operations, then we get the simplified form of the expression as,

=> 14b + 3a - 2

Now, we have to arrange them in order then we get,

=> 3a + 14b - 2

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Step-by-step explanation:

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