Step 1: 12x – 15 – 12x = 7x + 20
Step 2: 12x – 12x – 15 = 7x + 20
Step 3: -15 = 7x + 20
Step 4: -35 = 7x
Step 5: -5 = 3
Drag and drop the correct justification for each step.

Answers

Answer 1

Step-by-step explanation:

step 1. 12x - 15 - 12x = 7x + 20

step 2. 12x - 12x - 15 = 7x + 20 (grouping of terms)

step 3. -15 = 7x + 20 (adding like terms)

step 4. -35 = 7x (subtract 20 from both sides)

step 5. this step is incorrect.

step 6. -5 = x ( divide both sides by 7)

step 7. x = -5 (put the variable first).


Related Questions

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Answers

Answer of question 1:

x = 4

m = 2

n = 5

Answer of question 2:

x = 81

m = 4

n = 3

Hope it helps you. Do mark me as brainly. Thanks

Answer:

0.25

Step-by-step explanation:

HELP ME PLEASE, GONNA GIVE 25 POINTS!!

Answers

9(2b-5) is the answer

Answer:

(330) -4 (-45) (390)

Step-by-step explanation:

4x-2=14 i already know this just wanted to ask something

Answers

Answer:

4x-2=14

4x=14+2

x=16/4=4

what equation represents a line whose slope is 1/2 and whose y-intercept is 3

Answers

Answer:

y = 1/2x + 3

Step-by-step explanation:

anUm, y = mx + b format. M would be the slope, b is the y intercept. and obviosuly x and y are the x and y components :D

y=mx+b where m is the slope and b is the y intercept, m=1/2 and b=3

y=x/2+3 or more neatly

y=(x+6)/2

The math team went to lunch to celebrate Ms. Renft's birthday on February 11th. The
cost of the meal with tax was $148. 60. The math team left a 15% tip. What was the
total cost of the meal including tip?

Answers

Answer:

$171.12

Step-by-step explanation:

Including the tip and cost, it is 171.12. Multiply 148.6 by 1.15, which includes the total cost plus another 15% for the tip.

144 like exponent and with 12 like base

Answers

Answer:

That is not a question, Brainly is an educational app and I suggest you use it that way.

Tomas buys a bag of 5 peaches for $3.55.
Write and solve an equation to find how
much money, m, Tomas paid for each peach-

Answers

Answer: 3.55÷5=m  3.55÷5=0.71 so Tomas paid $0.71 per peach

Step-by-step explanation:

The volume of a cylinder is 54 cm. If the radius is 3 cm, what is the height
of the cylinder?
3 cm
O A. 18 cm
B. 9 cm
C. 6 cm
D. 3 cm

Answers

A is the answer if im wrong sorry

Answer:

The answer is C. 6

Step-by-step explanation:

My explanation is i got u bro u can trust me frfr but if you need all the work lmk

Can someone please solve this, thankyou <3

Answers

Step-by-step explanation:

[(4³)² × 5⁶] ÷ 6⁶

(4⁶ × 5⁶) ÷ 6⁶

(4 × 5)⁶/6⁶

20⁶/6⁶

=

[tex]( \frac{20}{6} )^{6} [/tex]

=

[tex] (\frac{10}{3} ) ^{6} [/tex]

Correct answer below :

please help i am really struggling . i really dont get it thanks :)

Answers

Answer:

I=P-A          

___________________________

What is the volume of this cone?
Use a ~ 3.14 and round your answer to the nearest hundredth.
7 in
5 in
cubic inches

Answers

Answer:

Volume = 183.26 cubic inches

Step-by-step explanation:

Volume of cone = ⅓πr²h

Where,

r = 5 in.

h = 7 in.

Plug in the values into the formula

Volume = ⅓*π*5²*7

Volume = 183.26 cubic inches (nearest hundredth)

It takes me 20 minutes to grade a students quit. how long in hours does it take me to grade 20

Answers

Answer:

400

Step-by-step explanation:

20 times 20

400 as explained above

how many quarts are in a gallon ​

Answers

Answer:

4

Step-by-step explanation:

1 US liquid gallon = 4 US liquid quarts

Answer:

1 gallon = 4 quarts

Step-by-step explanation:

WILL GIVE BRAINLIEST GIVE EXPLANATION

Answers

Answer:

5z+30

Step-by-step explanation:

5(z+6)

^ multiply each term in the parentheses by 5

5z+5x6

then,

5z+5x6 (multiply the numbers)

the answer will be 5z+30

Paul's
house
5 miles
Clara's
house
12 miles
What is the shortest possible distance between the houses?

O A. 8.5 miles
B. 13 miles
C. 14.5 miles
OD. 17 miles

Answers

I’m geussing it would be A because it’s the smallest therefore probably the lowest distance

Simplify 2/4 please and thank you

Answers

Answer:

1/2

Step-by-step explanation:

2/4 is equal to 1/2, because if you divide 4 by 2 you get 2, and if you divide 2 by 2 you get one.

Basically, the simplification process would look something like this...

2/4 ÷ 2/2 = 1/2

What is the midpoint of the segment with endpoints (4,1) and (-1,6)

Answers

Answer:

( 1.5 , 3.5 )

Step-by-step explanation:

Answer:

(3/2, 7/2)

Step-by-step explanation:

We find the mean (average) of 4 and -1, obtaining 3/2 by combining 4 and -1 and then dividing the result by 2.  Thus, the x-coordinate of the midpoint is xm = 3/2.

Similarly, we find the mean of 1 and 6, obtaining ym = 7/2.

Thus, the midpoint is (3/2, 7/2).

According to the Centers for Disease Control, about 18% of adolescents age 12-19 are obese. Suppose we take a random sample of 30 adolescents and find the proportion in our sample who are obese. We record this value. Now, repeat this many more times so that we have a great many sample proportions drawn from this population. Suppose we make a dotplot of the sample proportions. Would the dotplot be a visualization of the population distribution, the distribution of a sample, or the sampling distribution of proportions?

Answers

Answer:

the sampling distribution of proportions

Step-by-step explanation:

A sample is a small group of observations which is a subset of a larger population containing the entire set of observations. The proportion of success or measure of a certain statistic from the sample, (in the scenario above, the proportion of obese observations on our sample) gives us the sample proportion. Repeated measurement of the sample proportion of this sample whose size is large enough (usually greater Than 30) in other to obtain a range of different proportions for the sample is called the sampling distribution of proportion. Hence, creating a visual plot such as a dot plot of these repeated measurement of the proportion of obese observations gives the sampling distribution of proportions

The distance from the ground to where the ladder is touching the wall is 7
feet. The distance from the wall to the base of the ladder is 4 feet. What is
the length of the ladder?
wall
ladder

Answers

Answer:

L=8.062 feet

Step-by-step explanation:

wall=7

distance=4

Pythagorean theorem

7^2+4^2=L^2

49+16=L^2

65=L^2

L=8.062 feet

The required length of the ladder is given as 8.06 feet.

What are Pythagorean triplets?  

In a right-angled triangle, its sides, such as hypotenuse, perpendicular, and base are Pythagorean triplets.

here,
As mentioned in the question,
perpendicular length = 7, base length = 4 feet,
Let the length of the ladder be x,
Following the Pythagoras theorem,
x² = 7 ² + 4²
x ² = 49 + 16
x² = 65
x = √65
x = 8.06

Thus, the required length of the ladder is given as 8.06 feet.

Learn  more about Pythagorean triplets here:

brainly.com/question/22160915

#SPJ2

1. Is the number 5 prime, composite,
or neither?

Answers

1. Is the number 5 prime, composite,or neither?The number 5 is prime since it can only be divided by itself and 1.Hope I helped. :)

Answer:

5 is a prime that's the answer

The enrollment of students in evening classes at a local university decreased by 6% between two recent years. If the total number of students attending evening classes in both years was 13,925 , find how many students enrolled in evening classes in each of the years.

Answers

Answer:

First year: 13925; Second year: 13090

1. You can buy six cans of root beer for $2.50. How many cans of root beer
can you buy for $10? What proportions will work to solve this problem?

Answers

Answer

24 cans

Step by Step explanation

10$ / 2.5$ = 4

6 * 4  = 24

Which shape never has four congruent sides?
A square
B rhombus
C parallelogram
D isosceles trapezoid

Answers

Answer:

D

Step-by-step explanation:

its not a parallelogram, so that is not possible

the rest are

i hope this helps!

I need help! This is due in 30 minutes!!!

Answers

Answer:

It's supplementary

Step-by-step explanation:

They both create 180 degrees when added together because they ar both on a single line.

Answer:

Supplementary angle

Step-by-step explanation:

Y intercept (3,1) and (-4,-6)?​

Answers

Answer:

y-intercept:  (0, -2)

Step-by-step explanation:

Determine by how much x (the run) and y (the rise) change as you go from (-4, -6) to (3, 1):  The change in x is 7 and that in y is also 7.  Thus, the slope is

m = 7/7, or m = 1.

Using the point-slope form and the point (3, 1), we get:

y - 1 = 1(x - 3), or y = 1 + x - 3, or y = x - 2

Comparing this to y = mx + b, we see that the y-intercept is -2.

I will give brainliest!!!

Answers

Answer:

In between 4 and 6

Step-by-step explanation:

Since there are 2 negative signs it automatically goes to positive so u would go to positive 5, which is in-between 4 and 6!

Hope this helps!! :D

calcule:(-2)⁰+(-2)¹+(-2)²+(-2)³

por favor​

Answers

Answer:

-5

Step-by-step explanation:

Find the 59th term of the arithmetic sequence -8, -13, -18

Answers

Step-by-step explanation:

first term = a = -8

common difference = d = -13+8 = -5

59 th term = a + (59-1) d

= -8 + 58 (-5)

= -8 -290= -298

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hi hi this was a great day i you had to go out for the

Which graph is the answer

Answers

Answer:

D

is the answer

Step-by-step explanation:

5 + 8x < 6x + 12

8x - 6x < 12 - 5

2x < 7

x < 3.5

mark me as brainlist

Need help with math points and brainlest

Answers

answer: 10 ft (now i’m just typing to make it 20 letters long lol)

Answer: 10 because if they have the same shape then it must be 10.

I'm not sure if they want the same area or the same length. But if you want the volume then it would be 2. Because 2 x 75 = 150 and 15 x 10 = 150. Wait for more responses if needed.

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