All categories

2 years ago

Use the commutative property of addition to write an expression equivalent to the following.

Mathematics

1 answer:

defon2 years ago

7 0

<h3>Answer: b+5a</h3>

Explanation:

The commutative property of addition is where we can add two numbers in any order.

The general equation is x+y = y+x

A more concrete example would be something like 2+3 = 3+2 since both sides simplify to 5.

For 5a+b, it is the same as b+5a. We swap the two terms.

You might be interested in

Subtract 16 L 18 CL 9 ml from 85 L

harkovskaia [24]

Answer:

(1) 68.811 L

Step-by-step explanation:

The amount being subtracted is ...

16 + 0.18 + 0.009 = 16.189 . . . . liters

The difference is ...

85.000 -16.189 = 68.111 . . . liters

<em>Additional comment</em>

cL is the SI unit "centiliters." The prefix "centi-" mean 1/100 or 0.01 units. Then 18 cL = 18 × 0.01 L = 0.18 L.

mL is the SI unit "milliliters." The prefix "milli-" means 1/1000 or 0.001 units. Then 9 mL = 9 × 0.001 L = 0.009 L.

8 0

2 years ago

Use the drop-down menus to complete the statements to match the information shown by the graph. A graph has weight (pounds) on t

NISA [10]

Answer:

Your drop down menus have the following choices:

First box: faster than, slower than, at the same rate as.

Second box: greatest x-value, line, y-intercept, slope.

Third box: greater than, less than, equal to.

Fourth box: greatest x-value, x-intercept, y-intercept, slope, origin.

Fifth box: minutes per gallon, gallons per minute.

Pool A is filling up slower than Pool B because the slope of the graph of Pool A is less than that of the graph for Pool B.

The slope of the graph tells you the unit rate in gallons per minute.

Step-by-step explanation:

6 0

2 years ago

If 3x is one factor of 3x^2-9x, what is the other factor?

Rudik [331]

The answer is: " (x² − 3) " .
_________________________________
Explanation:
_________________________________

Given: 3x² <span>− 9x ; factor out a "3x" ;
_________________________________

</span>→ 3x (x² − 3) ;
_________________________________
The answer is: " (x² − 3) " .
_________________________________

7 0

3 years ago

Paul plans to buy a movie that has a regular price of $19.99. It is on sale for 25% off, but Paul will have to pay 6% sales tax.

d1i1m1o1n [39]

Answer:

16.00

Step-by-step explanation:

19.99 - 25% + 6% = 15.89 =16.00

8 0

3 years ago

The table below shows the scores of a group of students on a 10-point quiz.Test ScoreFrequency3 54 15 16 27 28 49 310 1The mean

Katarina [22]

Explanation

Part A

We can use the formula below to find the mean.

$\text{Mean}=\sum ^{}_{}(\frac{fx}{f})$

We will then have;

$\begin{gathered} \text{Mean = }\frac{5\times3+4\times1+5\times1+6\times2+7\times2+8\times4+9\times3+10\times1}{19}=\frac{15+4+5+12+14+32+27+10}{19} \\ =\frac{119}{19}=6.2632 \end{gathered}$

Mean = 6.2632

Part B

Since the data set is odd.

$\begin{gathered} \text{Median}=\frac{(n+1)}{2}^{th}\text{observation} \\ =\text{Value of }\frac{\text{(19+1)}}{2}^{th}\text{observation} \\ =\text{value of 10th observation} \end{gathered}$

Answer: From the column of cumulative frequency cf, the median is 7

5 0

1 year ago