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nordsb [41]
2 years ago
7

Which pair shows equivalent expressions? Plz help me well mark brainliest! T-T

Mathematics
1 answer:
asambeis [7]2 years ago
8 0

Answer:

Option 3

Step-by-step explanation:

The first and second option can be eliminated immediately because the first equation simplified is:

2x + 10 = -2(x - 5)

2x + 10 = -2x + 10

The second equation expanded is:

-2(x + 5) = 2x - 10

-2x - 10 = 2x - 10

The third equation expanded is:

-2x - 10 = -2(x + 5)

-2x - 10 = -2x - 10

Meaning this equation is correct.

The fourth equation expanded is:

-2(x - 5) = -2x - 10

-2x + 10 = -2x - 10

Option 3 is the only correct option.

Hope this helps!

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Plsss helppp, tysmm!!
Vinvika [58]

Answer:

It should be PT and NO

Hope this helps!

4 0
2 years ago
Steve paid 10% tax on a purchase of $40. Select the dollar amount of the tax and the total dollar amount Steve paid on the numbe
Shalnov [3]
10% of 40 =
10% × 40 =
.10 × 40 = 4.00

Tax is $4
Amount Paid is 40 + 4 = $44
6 0
3 years ago
I need help with these three
Ludmilka [50]
A. The relationship of <7 and <8 are that they are vertical angles, and are congruent.

B. Since vertical angles are congruent, you can form an equation where the two measurements equal each other. 

C. 5y-29=3y+19       then plug y into your equation: 5*24-29=91
    2y=48                   and so: <7 = 180-91=89 (and since <8 is congruent)
    y=24                     <8 also equals 89

Your second problem: 
complementary are two angles that add up to 90 degrees.
<B=x, <A=2x
2x+x=90
3x=90
x=30       so: <B=30 degrees, <A=60 degrees

Your third problem:
1. Since A and B are parallel, angle 3x+7 and angle 4x+5 are same-sided exterior angles. That means that they both add up to 180 degrees. So if you should add the two and make it equal 180
2. 3x+7+4x+5=180
    7x+12=180
    7x=168
    x=24
3. <6 is a corresponding angle with angle 3x+7, meaning that they are congruent. So plug x into 3x+7: 3*24+7=79 and since <6 is congruent to 3x+7, <6=79 degrees
6 0
3 years ago
Read 2 more answers
3. Three soccer players are scored 25 goals this season.
Varvara68 [4.7K]

The mean goals scored by the soccer players this season is 18.3 goals

<h3>What is mean? </h3>

Mean is the ratio of the sum of data to the total sample of data.

If three soccer players are scored 25 goals this season., five soccer players  scored 19 goals this season and ten soccer players scored 16 goals this season, the mean goal scored is expressed as:

Mean goal scored = 3(25)+5(19)+10(16)/3+5+10

Mean goal scored = 75 + 95+160/18

Mean goal scored = 330/18

  • Mean goal scored = 18.3 goals

Hence the mean goals scored by the soccer players this season is 18.3 goals

Learn more on mean here: brainly.com/question/20118982

3 0
2 years ago
Which number produces a rational number when added to 0.42
kenny6666 [7]
Any Whole or Rational Number, 1 can be used as an Example if you want it Simple

4 0
2 years ago
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