Use elimination to solve each system of equations. Explain your steps in complete sentences. Use the textbox to type your paragraph(s).


x + y = 9

x - y = -3

SOMEONE PLS HELP ASAP!! I WILL GIVE YOU BRAINLIEST! PLS USE COMPLETE SENTENCES AND YOUR OWN WORDS!

Answers

Answer 1
x + y = 9

x - y = -3

so because +y-y= 0 , you can cut it.
x+x=2x 9+(-3)=6
2x=6
x= 3 so you substitute x’s value in any one eq to get y
x+y=9
3+y=9
y=9-3
y=6

Related Questions

find the two smallest consecutive even intiger whose sum is at least 51 .​

Answers

Answer:

26 + 28 = 54

Step-by-step explanation:

These are the smallest two even consecutive numbers that sum up to atleast 51

What is the result of converting 6160 yards to miles? (Remember that 1 mile =
1760 yards.)
A. 2.5 miles
B. 4 miles
C. 3.5 miles
D. 3 miles

Answers

Answer:

C. 3.5 miles

Step-by-step explanation:

1 mile =1760 yards

Using the conversion factor

6160 yds  * 1 mile/ 1760 yds = 6160/1760 miles = 3.5 miles

Why are these two triangles are congruent and prove reason

Answers

Answer:

SAS

Step-by-step explanation:

UN || A?

SN || D?

m< N ≅ m<?

Side angle side.

SUN ≅ DA?

? Is the angle that is not marked or cropped off

Find the value of x.
B
х
6
2
A
D
3
С

Answers

it would be 6. if it’s wrong i’m sorry

Answer:

the answer is 4

Step-by-step explanation:

A triangle has side lengths of 21 cm and 17 cm. What is the range of values possible for the 3rd side?

Answers

Answer:

[tex]4 < x < 38[/tex]

Step-by-step explanation:

[tex]21 - 17 = 4[/tex]

[tex]21 + 17 = 38[/tex]

The range of 3rd side is in between 4 to 38.

[tex]4 < side 3 < 38[/tex]

A triangle has side lengths of 21 cm and 17 cm

side 1 = 21 cm

side 2 = 17 cm

What is the relation between side of triangle?

The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

Therefore,

length of side 3

[tex]21-17 < side 3 < 21+17[/tex]

[tex]4 < side 3 < 38[/tex]

Therefore the range of 3rd side is in between 4 to 38.

[tex]4 < side 3 < 38[/tex]

To learn more about the side of triangle visit:

https://brainly.com/question/20734777

The price of a washing machine is reduced by 20% for a sale.
Afterwards, the sale price is increased by 30%.

Joachim says

The washing machine is now 10% more expensive than before the sale.

Explain Joachim’s error and work out the correct percentage change in the price of the washing machine from before the sale to after the sale

Answers

Answer:

1) Joachim's error is in applying the 30% increase to the initial price of the washing machine, 'x', rather than the reduced price of the washing machine for the sale, which is 0.8·x

2) The correct percentage change in price is 4%

Step-by-step explanation:

The price of the washing machine has the following parameters;

The percentage reduction of the price of the washing machine for a sale = 20%

The percentage by which the price is increased afterwards = 30%

Let 'x' represent the initial selling price of the washing machine before the price decrease, and let 'P' represent the sale price after the price increase, we have;

The price after the 20% reduction = x - 20% × x = x - (20/100) × x = 0.8·x

The price after the 30% increase after the sale = 0.8·x + 30% × 0.8·x = 0.8·x + 30/100 × 0.8×x = 0.8·x + 0.3 × 0.8·x = 1.04·x = x + 0.04·x = x + (4/100) × x = x + 4% × x

Therefore, Joachim's error is in applying the 30% increase to the initial price of the washing machine, 'x', rather than the reduced price of the washing machine for the sale, which is 0.8·x

2) The percentage change in the price after the sale is given as follows;

Price of the washing machine after the sale, P = 1.04·x = (104/100) × x = 104% × x

∴ P = 100%x + 4%x = (100/100)·x + 4%x = x + 4%

The percentage change in price = P - x = x + 4% - x = 4%

The correct percentage change in price = 4%

You just bought a used car and are determining your monthly costs. Your monthly
car payment will be $252. Your car insurance costs $684 every 6 months.
15. Write a verbal model for the monthly
car expenses.

Answers

Answer:

366$ per month

Step-by-step explanation:

To get the answer you know that you are paying 252 evey month for the car payment and 684 every 6 month so yo take the 684 and divide it by 6 to get how much you pay each month and add it to the 252 and that's your answer of 366$

5(-2k-3)+2k5(−2k−3)+2k5, left parenthesis, minus, 2, k, minus, 3, right parenthesis, plus, 2, k equals

Answers

Answer:

[tex]5(-2k-3)+2k= -8k - 15[/tex]

Step-by-step explanation:

Given

[tex]5(-2k-3)+2k[/tex]

Required

Determine equivalent expression

[tex]5(-2k-3)+2k[/tex]

Start by opening the bracket

[tex]-5*2k-5*3+2k[/tex]

[tex]-10k-15+2k[/tex]

Collect Like Terms

[tex]2k-10k-15[/tex]

Evaluate like terms

[tex]-8k - 15[/tex]

Hence:

[tex]5(-2k-3)+2k= -8k - 15[/tex]

Find the height x of the triangle? 90 100

Answers

Is it 190? I’m not sure

Help pleaseeee IM TIMEDDDDD

Answers

Answer:

D.

Step-by-step explanation:

Line D. shows the numbers less than 4. Trust me on this.

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(„• ֊ •„)♡

┏━∪∪━━━━┓

♡ good luck 。 ♡

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A rectangular football field is 64 meters wide and 100meters long. A player runs from one corner of the field in a diagonal line to the opposite corner.


How far did the player run?
Round your answer to the nearest meter

Answers

Answer:

In this case a=64,b=100,a=64,b=100,a, equals, 64, comma, b, equals, 100, comma and c=xc=xc, equals, x. The player ran approximately 119119119 meters.

Step-by-step explanation:

Please help me with this!!!

Answers

Answer:

a-12

d-16

Step-by-step explanation:

sorry gawa gawa kolang yan ehh

i’m thinking it would be 6 i’m not 100% sure but i tried

Pls answer both parts clearly and fast thxs❤️

Answers

Answer:

part 1 is $27.72

part 2 is $33.88

Step-by-step explanation:

part 1

8% + 25%= 33%

                     -----

                       100

33x84 divided by 100= $27.72

part 2

11x56 divided by 100x5.50=33.88

hope this helps!

A rectangle is 40 yards long and 30 yards wide. What is the length of the diagonal that cuts through the center?

Answers

Answer:

it should be 50

Step-by-step explanation:

Using the pythagorean theorem c = [tex]\sqrt{a^{2} +b^{2} }[/tex] we get 50

✨✨Please help✨✨ will mark brainliest

Answers

Answer:

2/3, 62%, 61, 0.6.

Step-by-step explanation:

62% stays 62%

0.6 is 60%

61 is 61%

2/3 is around 66.67%

so the order from greatest to least would be

2/3, 62%, 61, 0.6.

Please help?..........

Answers

C thank me later

:))

what is the volume of the sphere?

Answers

2304π is the answer and if you don’t want pi it’s 7238.2294738709 feet

Sarah rolled two 6-sided number cubes. Find the probability that the sum of the numbers is equal to 12.

Answers

Answer:

1/36

Step-by-step explanation:

trust me I took the practice test with the same question and got it incorrect, I look over the practice test and learned the correct answer was 1/36

basically 6x6 (two dice)= 36

What is the slope of the line shown below?

Answers

shld be either c or d I don't rlly know

The graph shows the relationship between time and the number of soda bottles a machine can make. Use the points (5,80) and (8128) to find the number of soda bottles the machine can make each minute

Answers

Answer:

16

Step-by-step explanation:

not sure if you still need the answer since its been two weeks but 80 divide 5 you get 16 and 128 divide 8 you get 16.

Find the area of a trapezoidal tabletop, if its parallel sides are 2 m and 3 m long and the perpendicular distance
between them is l m.

Answers

Answer:

The area of the trapezoidal table top is 2.5 m²

Step-by-step explanation:

The area, A, of a trapezoid is given as half times the sum of the parallel side multiplied by the perpendicular distance between them

Therefore, we have;

[tex]A = \dfrac{a + b}{2} \times h[/tex]

The given parameters of the trapezoidal table top are;

The length of the parallel sides = 2 m and 3 m

The length of the perpendicular distance between the parallel sides = 1 m

Where, for the rectangular table top, we have;

'a', and 'b' = The lengths of the parallel sides = 2 m and 3 m respectively

h = The perpendicular distance between the parallel sides = 1 m

By substituting in the values, we have;

[tex]A = \dfrac{2 \ m + 3 \ m}{2} \times 1 \ m = 2.5 \ m^2[/tex]

The area of the trapezoidal table top, A = 2.5 m².

Dana and her husband wanted to take the youth group to a pizza park. It costs each child $7 to ride all the rides and double that amount for adults. They took 13 children with them.

How much did they spend at the pizza park?

Answers

119$ (91$ for the 13 kids and 28$ for the 2 adults)

A group of 150 dancers are auditioning for a dance show. 62% of the dancers trying out did not get on the show. How many dancers got on the show?

Answers

Answer:

57

Step-by-step explanation:

you can. go with the.answer

A bottle contains 1.6 litres of water.
750 millilitres of the water is poured into a jug.
How much water is left in the bottle

Answers

Answer:

850 millilitres or 0.85 litre

Step-by-step explanation:

1 litre = 1000 ml1.6 litre = 1000 ×1.61.6 litre = 1600 ml

left water = 1600ml - 750ml = 850ml

MARK ME BRAINLIST

After 14 years, I shall be three times as old as I was 4 years ago. What is my present age?

Answers

Answer:

Present age = 13 years

Step-by-step explanation:

Let the present age be x years.

14 years after age = (x + 14) years

4 years ago age = (x - 4)

According to the given information:

14 years after age = 3 times 4 years ago age

x + 14 = 3(x - 4)

x + 14 = 3x - 12

14 + 12 = 3x - x

26 = 2x

x = 26/2

x = 13 years

Thus, the present age is 13 years

answer this and ill give brainliest

Answers

Answer:

-4.65< -4 and 2/5

Step-by-step explanation:

To solve, this we can convert the fraction -4 and 2/5 into a decimal so that the values can be more easily compared. When we do this, we get the result that -4 and 2/5 equals -4.4. Now we can clearly see which value is greater because they are written in the same form:

-4.65<-4.4

-4.65<-4 2/5

Answer:

<

Step-by-step explanation:

You have to convert the mixed number by multiplying the whole number by the denominator, adding the numerator, and dividing the sum by the denominator.

4x5=20

20+2=22

22÷5=4.4

-4.65 < -4.40

I HAVE BEEN STUCK ON THIS FOR DAYS HEEEELP THANK YOU STRAGERS =D

Answers

I think you can just divide 11 by 4 and you will get the answer to z.


Equation: z = 11/4

z = 2.75


7,650÷_________=7.65​

Answers

Answer:

The answer is 58,522.5

Step-by-step explanation:

You multiply 7.65 by 7,650 and get 58,522.5. And when you plug it back in it’s correct.

7,650 divided by 10=765
7,650 divided by 100=76.5
7,650 divided by 1000=7.65 so the answer is 7,650 divided be 1000=7.65

There are 2 rectangles. One was 1.2 cm by 3.4 cm. The other was measured 2.1 cm by 1.7 cm. How much is the perimeter?

Answers

Answer: See explanation

Step-by-step explanation:

Perimeter of a rectangle is given as:

= 2(length + breadth)

First rectangle measures 1.2 cm by 3.4 cm. The perimeter will be:

= 2(1.2+ 3.4)

= 2(4.6)

= 2 × 4.6

= 9.2cm

Second rectangle measured 2.1 cm by 1.7 cm. The perimeter will be:

= 2(2.1 + 1.7)

= 2 × 3.8

= 7.6cm

Total perimeter = 9.2cm + 7.6cm = 16.8cm

PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!
Which of the following is a solution to the equation x3=149 ?

A
x=723

B
x=732

C
x=7−23


23



D
x=7−32

E
This equation has no solution

Answers

Answer:

x=5.301459

You have to find the cube root of 149 to isolate the variable.

Answer:

E

Step-by-step explanation:

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