-9(-3 1/3 - 4) how do I solve that math problem?

1 answer:

3 0

You need to use the distributive property. So you take the -9 from outside the parentheses and multiply itself by the numbers inside.

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Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.

EleoNora [17]

Answer:

The system of equation are $\left \{ {{15+1x} \atop {3+5x}} \right.$ .

In 3 weeks, the friends will each have passed 18 scales.

Step-by-step explanation:

Let number of weeks be 'x'.

Given:

Number of scale Pablo has passed = 15 scales

Number of scale Kayla has passed = 3 scales

Number of scales passing per week by Pablo = 1 scale

Number of scales passing per week by Kayla = 5 scale

We need find the number of weeks when both have same scales.

First we will find the Total number of scales Pablo will passed after 'x' weeks.

Total number of scales Pablo will passed after 'x' weeks is equal to sum of Number of scale Pablo has passed and Number of scales passing per week by Pablo multiplied by number of weeks.

framing in equation form we get;

Total number of scales Pablo will passed after 'x' weeks = $15+1x$

Now we will find Total number of scales Kayla will passed after 'x' weeks.

Total number of scales Kayla will passed after 'x' weeks is equal to sum of Number of scale Kayla has passed and Number of scales passing per week by Kayla multiplied by number of weeks.

framing in equation form we get;

Total number of scales Kayla will passed after 'x' weeks = $3+5x$