Mathematics High School

Kam is trying to find the solution to the system below. Her steps are below as well.

What did kam do wrong?

Kam Is Trying To Find The Solution To The System Below. Her Steps Are Below As Well.What Did Kam Do Wrong?

Answers

Answer 1

Answer:

Step 4

Step-by-step explanation:

In step 4, instead of adding 22 to both sides of the equation to combine like terms, Kam got rid of it completely. Starting from step 3, here is the correct way of solving it:

[tex]7x-22=18[/tex]

Add 22 to both sides

[tex]7x-22+22=18+22\\7x=40[/tex]

Divide both sides by 7 to isolate x

[tex]\frac{7x}{7}=\frac{40}{7} \\x=\frac{40}{7}[/tex]

I hope this helps!

Answer 2

Answer:

In step 4, she forgot to add 22 to 18

Step-by-step explanation:

In step 4, she forgot to add 22 to 18

It should've been:

7x = 40

x = 40/7

3 (40/7) + 2y = 18

120/7 + 2y = 18

2y = 18 - 120/7

2y = 6/7

y = 3/7

Related Questions

A car traveling at 72 kilometers per hour. Find the car’s speed in one meter per second?

Answers

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How many 5-card hands can be dealt from a standard deck of 52 cards?

Answers

Answer:

2,598,960

Step-by-step explanation:

Answer:

The  2598960 cards can be dealt from a standard deck of 52

cards if 5-card selected.

What is permutation and combination?

A permutation is the number of different ways a set can be organized; order matters in permutations, but not in combinations.

We have a standard deck of 52 cards.

5 cards selected.

Total combination:

= C(52, 5)

= 2598960

Thus, the  2598960 cards can be dealt from a standard deck of 52

cards if 5-card selected.

Find the missing angle or find X?

Answers

x = 60°
Because the square in the corner tells you that it is 90° (right angle)
So your equation to solve for x would be...
x + 30 = 90
Now you need to isolate the x.

Subtract both sides by 30.
x + 0 = 90 - 30
x = 60

What is the area of the figure?

Answers

Answer:

64.26 cm².

Explanation is given in the above photo.

Answer:

64.26

Step-by-step explanation:

6 times 6 is 36 and 28.26 is the area of of the 1/4 circle

Which expression is equivalent to 2x ^ 2 - 2x + 77 ? (4x + 1.2) + (2x ^ 2 - 6x + 5) (x ^ 2 - 5x + 13) + (x ^ 2 + 3x - 6) (4x ^ 2 - 6x + 11) + (2x ^ 2 - 4x + 4) (5x ^ 2 - 8x + 120) + (- 3x ^ 2 + 10x - 13)

Answers

Answer:

None of the answers provided are equivalent

Step-by-step explanation:

To solve it would be best to simplify each of the expressions you have listed by combining like terms all the x^2 terms have been bolded, the x terms italicized, and the constant terms are underlined

(4x + 1.2) + (2x ^ 2 - 6x + 5) = 2x ^ 2 - 6x + 6.2

(x ^ 2 - 5x + 13) + (x ^ 2 + 3x - 6) = 2x^2 -2x +7

(4x ^ 2 - 6x + 11) + (2x ^ 2 - 4x + 4) = 6x^2 -10x +15

(5x ^ 2 - 8x + 120) + (- 3x ^ 2 + 10x - 13) = 2x^2 + 2x + 107

pls help will give brainliest

Answers

answer: area=b18ft×h13ft

Step-by-step explanation:

area=base×height

Please help!!!!!!!!!!

Answers

The answer is c x=3

Is 12/20 greater than 1

Answers

no, this is false. 1 is greater than 12/20.

Answer:

No. Its not cause 20/20 is what makes ita whole 1 so if ita 12 than its not equal to 1

A tree casts a shadow 31 feet long when the angle of
elevation of the sun is 58º. Find the height of the tree.

Answers

Answer:

x=24.2198542

ROUND IF NEEDED

Step-by-step explanation:

We are trying to find the height of the tree or the vertical side

We are given

The angle of elevation or the angle at the ground ,38The horizontal length, 31.

Since we have a side that is adjacent to that angle and we are trying find backside that us opposite of that angle

we are going to use tangent

[tex] \tan(x) = \frac{opp}{adj} [/tex]

plug 38 in for x or theta, x for opp side and 31 for adjacent side

[tex] \tan(38) = \frac{x}{31} [/tex]

Multiply 31 by both sides to find x

x=24.2198542

ROUND IF NEEDED.

8x-29 + 6x-11 + 3x-1 solve for x

Answers

Answer:

Step-by-step explanation:

I need help on this too.

Answer:

8x-29 + 6x-11 + 3x-1=180

Answer: 180

Step-by-step explanation:

What is 2500+28566+23x2= -----

Answers

Answer: 31112

Step-by-step explanation:

Answer: It's 31,112.

Which is the slowest reading rate? *

2 points

4 pages in 10 minutes

5 pages in 13 minutes

3 pages in 9 minutes

7 pages in 20 minutes

​

Answers

answer: 4 pages in 10 minutes
explanation: 2.5min/page

medium of 8,9, 10, 10, 11, 11, 11, 12, 13​

Answers

Answer: 10.5

Step-by-step explanation:

Hope it's right!

Help pls I need it now

Answers

Answer and Step-by-step explanation:

So, the format you should choose is the second one.

This is what goes in each box:

[4] (p - [6]) = [12]

The 4 is multiplying the price for 1 of the items (and it is 4 because there are 4 items), the 6 is taking away 6 dollars (because coupons take away money from amount) and 12 is the total amount of money.

Now, we solve for p.

Divide each side by 4.

p - 6 = 3

Now, add 6 to each side.

p = 9.

Each item cost 9 dollars.

#teamtrees #PAW (Plant And Water)

what is 6 divided by 1,932

Answers

Step-by-step explanation:

do u mean 1,932 divided by six?

Answer:

1932 divided by 6 in decimal = 322

1932 divided by 6 in fraction = 1932/6

1932 divided by 6 in percentage = 32200%

Step-by-step explanation:

The number 1932 is called the numerator or dividend, and the number 6 is called the denominator or divisor.

The quotient of 1932 and 6, the ratio of 1932 and 6, as well as the fraction of 1932 and 6 all mean (almost) the same:

1932 divided by 6, often written as 1932/6. 1932 divided by 6 = 322

The result of 1932/6 is an integer, which is a number that can be written without decimal places.

1932 divided by 6 in decimal = 322

1932 divided by 6 in fraction = 1932/6

1932 divided by 6 in percentage = 32200%

AH HELP PLEASE !!!!!!!!!

Answers

a: is -10 B: is 200 c: is -3

Which ordered pair is a solution. There can be more than one.

Answers

Answer:

c (-2, -4)  & d(-1 , 1)

Step-by-step explanation:

The ordered pair that are lying inside the shaded region will be the solution.

Select all expressions that are equivalent to — 3x – 9

A. -3(x+3)

B. 3(x+3)

C. 3(-x - 3)

D. -3(x-3)

E. 3(x-3)

Answers

Answer:

A and C

Step-by-step explanation:

6 need help asap will give brainly

Answers

Answer:

12x= 180

Step-by-step explanation:

The sum of a triangle always adds up to 180 so,

(4x-1)+ (2x-1) +6 = 180

12x=180

x=15

Answer:

The equation you could use is the 3rd solution. You need to add all of the nubers that have an x after it because you can't add a number that doesn't have x and a number that does have x.  So once you add all of those,  you add the 10, and keep the subtrction symbol instead of the addition symbol. And like I said before, all triangles are equal to 180.

Step-by-step explanation:


Given: 2x^2+ 32x + 16 = 0
Step 1: x^2+ 16x +8=0
Step x^2+ 16x = -8
Write numbers in each box to correctly complete the square In Step 3.
Step 3: x^2+ 16x +

Answers

Answer:

Step 3: x² + 6x + 64 = -8 + 64

Step-by-step explanation:

At step 3 add 64 on both sides to complete the square.

so x² + 6x = -8

becomes x² + 6x + 64 = -8 + 64 when 64 is added both sides giving us step 3.

continuing from there, we get

x² + 6x + 64 = 56

we then use a² + 2ab + b² = (a + b)² on the left side to get

(x + 8)² = 56 (solve the equation for x)

by taking the root on both sides

√(x + 8)² = √56

x + 8 = +- 2√14 (separate the equations

x + 8 = 2√14

x + 8 = -2√14

Solving for x

x = 2√14 - 8 or x = -2√14 - 8

a basketball player made 62 out of 100 attempted free throws. what percent of free throws was made?

Answers

Answer:

62%

Step-by-step explanation:

This is bc a percent is out of every 100, so an equation we can make is 62/100 = x/100, therefore bby solving this equation:

you get x = 62%

Hope this helps

Answer:

345

Step-by-step explanation:

320 is what percent of 138?​

Answers

Answer:

43.13

Step-by-step explanation:

The scale used on a map of Alaska indicates that a length of 3 inches represents a distance of 75 miles. What distance is represented by a length of 6 inch on the map?

A. 25 miles
B. 37.5 miles
C. 150 miles
D. 470 miles​

Answers

Answer:

s

Step-by-step explanation:

s

Answer:

C

Step-by-step explanation:

3 inches= 75miles

6 inches would be 75+75= 150 miles

The school provides parking passes that include a letter and a number between 1 and 20. What is the probability that Mr. Welton will be given the parking pass with "W-17" on it?

Answers

26 letters in the alphabet.

1-20 = 20 numbers.

The probability of getting w = 1/26

The probability of getting 17 = 1/20

The probability of both: 1/26 x 1/20 = 1/520

The liquid outer core of the earth is 2300 km thick. A scale model of the layers of the earth has a scale of 1 inch: 500km. How thick is the liquid outer core of the model?

Answers

Answer:

Earth's outer core is a fluid layer about 2,400 km (1,500 mi) thick and composed of mostly iron and nickel that lies above Earth's solid inner core and below its mantle. Its outer boundary lies 2,890 km (1,800 mi) beneath Earth's surface.

about 2,400 km

Step-by-step explanation:

im sorry i  try  

I am so confused please help

Answers

Answer:

-10

Step-by-step explanation:

F(-1)=-6

g(-6)=-10

Solve: 4 ¹/₄ ÷ 8 (Answer as a whole number)

Answers

Answer:

0.53

Step-by-step explanation:

Make decimal then divide.

Hope i helped you.

A day at the spa costs $125. You leave a 20% tip. How much tip did you leave?

Answers

Answer: $25

Step-by-step explanation:

20% = 0.20

125 x 0.20 = 25

$125 + $25 = $150 (the entire bill)

Answer:

20%/100 × 125 = 25

$125+25=50

hope it helps

YO SOMEBODY HELP IM STUCK

Answers

Step-by-step explanation:

Here it is given that 0 is less than equal to X so answer will be you should point the mark on 0

A line passes through the point (-6,2) and has a slope of -4/3

Write an equation in point-slope form for this line.

Answers

Answer:

Step-by-step explanation:

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