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3 years ago

What property is shown?

Mathematics

1 answer:

Gemiola [76]3 years ago

6 0

Answer A.
commutative property

---------
a+b = b+a

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ANSWER PLS PLS PLS Solve the proportion! <img src="https://tex.z-dn.net/?f=-%5Cfrac%7B6%7D%7B7%7D%3D%5Cfrac%7Bn%

aliya0001 [1]

To solve this, you need to isolate/get the variable "n" by itself in the equation:

$-\frac{6}{7} =\frac{n}{21}$ Multiply 21 on both sides to get "n" by itself

$(21)(-\frac{6}{7} )=(21)\frac{n}{21}$

$-\frac{126}{7} =n$ Simplify the fraction

-18 = n

8 0

4 years ago

a certain atore has a fax machine available for use by its customers. the store charges $2.30 to send the first page and $0.40 f

VikaD [51]

2.30 + 0.40(x - 1) < = 5.10
2.30 + 0.40x - 0.40 < = 5.10
1.90 + 0.40x < = 5.10
0.40x < = 5.10 - 1.90
0.40x < = 3.20
x < = 3.20 / 0.40
x < = 8 <=== 8 pages, at the most, can be faxed

3 0

4 years ago

Leon has 4 times as much money as Andrew, and Bryanna has $250 more than Leon. If Bryanna has $300, how much does Andrew have? L

erik [133]

Answer:

$12.5

Step-by-step explanation:

Bryanna has : $300

Since she has $250 more than Leon.

To get the amount that Leon has, Subtract $250 from $300. $300-$250=$50

So Leon has : $50

Leon has 4 times as much money as Andrew

To get the amount that Andrew has, Divide $50 by 4. $50÷4=$12.5

8 0

3 years ago

Can someone help me plz

alexandr1967 [171]

Answer:

B. & E.

Step-by-step explanation:

First, to find your slope, put your line into slope-intercept form.

$y=mx+b\\$

$3x-4y=7\\-4y=-3x+7\\y=\frac{3}{4} x-\frac{7}{4}$

Your slope is $\frac{3}{4}$ .

Now, you can find the y-intercept of your parallel line by plugging your given point and your slope into point-slope form.

$y-y1=m(x-x1)\\y-(-2)=\frac{3}{4} (x-(-4))\\y+2=\frac{3}{4} (x+4)\\y+2=\frac{3}{4} x+3\\y=\frac{3}{4} x+1$

Your y-intercept is 1.

If you notice, answer choice E is equivalent to one of our steps in converting it to point-slope form. Therefore, E is one of your answers.

The equation of your parallel line is:

$y=\frac{3}{4} x+1$

B is also a correct answer.

If you put B into slope-intercept form, you get the following:

$3x-4y=-4\\-4y=-3x-4\\y=\frac{3}{4} x+1$

This, of course, is equivalent to the parallel line which we already found, so we know it is parallel.

7 0

4 years ago

Read 2 more answers

Last week, Kip went to the fair. It costs $4.59 to enter the fair and $1.25 per ticket. In the equation below, x represents the

Ainat [17]

Answer:

B.) 15

Step-by-step explanation:

Fist you want to plug in 23.34 as your Y. Next you want to subtract 4.59 from 23.34. Finally, to get the variable alone, divide the answer you got from subtracting by 1.25.

3 0

2 years ago