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3 years ago

Use the commutative property to rewrite the following expression. x+13

Mathematics

1 answer:

Wewaii [24]3 years ago

3 0

Answer:

13+x

Step-by-step explanation:

1. Since its commutative property you can switch it around and you will still get the same answer.

2. Instead of x+13 you can write it as 13+x

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3 times the difference between 5 and y

Crazy boy [7]

Answer:

3(5-y)

Step-by-step explanation:

3 0

2 years ago

Graph the system of equation on graph paper or in your calculator, y=−4/3x+4y=−2/3x−2

aleksklad [387]

Answer:

The lines intersect once at (2, −1).

A graphic solution to a system of equations is only as accurate as the scale of the paper or precision of the lines. At times the point of intersection will need to be estimated on the graph. When an exact solution is necessary, the system should be solved algebraically, either by substitution or by elimination.

Step-by-step explanation:

hope i helped

4 0

3 years ago

Kala purchased a prepaid phone card for $15. Long distance calls cost $12 a minute using this card. Kala Use her card only once

irina [24]

Kala call lasted for 0.36 minutes

<em><u>Solution:</u></em>

Given that Kala purchased a prepaid phone card for $15

Long distance calls cost $12 a minute using this card.

If the remaining credit on her card is $10.68

To find: Number of minutes her call lasted

Let "x" be the number of minutes her call lasted

Cost of 1 minute = $ 12

Total balance = $15

Remaining balance = $ 10.68

So we can frame a equation as:

Total balance = Remaining balance + Cost of 1 minute x number of minutes her call lasted

$15 = 10.68 + 12 \times x\\\\15 - 10.68 = 12x\\\\4.32 = 12x\\\\x = 0.36$

So her call lasted for 0.36 minutes

4 0

3 years ago

The first three terms of a sequence are given. Round to the nearest thousandth (if necessary). 2,6, 18,... Find the 8th term.

Andrei [34K]

Answer:

4,374

Explanation:

Given the sequence: 2, 6, 18, ...

If we study the pattern we observe that:

$\begin{gathered} \frac{6}{2}=3 \\ \frac{18}{6}=3 \end{gathered}$

This is a geometric sequence with:

• The first term, a=2

• Common Ratio, r=3

The nth term of a geometric sequence is obtained using the formula:

$U_n=ar^{n-1}$

Therefore, the 8th term will be:

$\begin{gathered} U_8=2\times3^{8-1} \\ =2\times3^7 \\ =4374 \end{gathered}$

The 8th term of the sequence is 4,374.

4 0

2 years ago

What is linear equation

11Alexandr11 [23.1K]

Answer:

hope it helps

Step-by-step explanation:

an equation between two variables that gives a straight line when plotted on a graph.

4 0

3 years ago