solve using elimination 10x - 9y = -8 and 2x - 8y = -14 ​

Answers

Answer 1

Answer:

x = 1, y = 2

Step-by-step explanation:

Multiply 2x - 8y = -14 ​by 5 to get 10x - 40y = -70

Subtract (10x - 40y = -70) - (10x - 9y = -8)

Solve -31y = -62 for y

y = 2

Plug in y value to get x value

x = 1


Related Questions

Help! I’m taking a test and don’t get this Solve x/4-2=2

Answers

Answer:

x is 16

Step-by-step explanation:

i need some help please :)​

Answers

ADC = DAB
CAD = BDA
Answer: DAB, BDA

what is the distance between the points?! round to the nearest tenth i need to show work

Answers

Answer:

c=[tex]\sqrt{52}[/tex]

Step-by-step explanation:

a=height=6

b=length=4

using pythagorean theorem

a^2+b^2=c^2

36+16=c^2

c=[tex]\sqrt{36+16}[/tex]

c=[tex]\sqrt{52}[/tex]

Complete the sentence about the two given relations.

Answers

Answer:

Has one to one correspondence

can someone help me with this question, ill give brainiest.

Answers

44s = the product of 44 and s.

44s = 44 × s

If we multiply a number with a variable we would get for example

22 × a would be 22a

10 × u = 10u

consider the inequality x+10 /3>2

highlight which values of x are a solution to the inequality
a. x=-2
b. x=4
c. x=-5
d. x=-20​

Answers

Answer:

a, b

Step-by-step explanation:

-2+10=8÷3=2.66

2.66>2

4+10=14÷3=4.66

4.66>2

-5+10=5÷3=1.66

1.66<2

-20+10=-10÷3=-3.33

-3.33<2

Here are the boiling points of certain elements in degrees Celsius: Argon: -185.8 Chlorine: -34 Fluorine: -188.1 Hydrogen: -252.87 Krypton: -153.2 Helium: -268.9 Select all the boiling points that are above the boiling point of Argon.

Answers

Answer:

Chlorine: -34 °C

Krypton: -153.2 °C

Step-by-step explanation:

Boiling point of elements in degree Celsius (°C)

Argon: -185.8 °C

Chlorine: -34 °C

Fluorine: -188.1 °C

Hydrogen: -252.87 °C

Krypton: -153.2 °C

Helium: -268.9 °C

Boiling points that are above the boiling point of Argon.

Chlorine: -34 °C

Krypton: -153.2 °C

can someone plz help me

Answers

9514 1404 393

Answer:

  C.  168

Step-by-step explanation:

One of the more useful approaches to multiple choice problems is eliminating the answers that don't make any sense.

You know a square has internal angles of 90 degrees, and that polygons with more sides have larger angles. No internal angle can be more than 180 degrees in a regular polygon. The only answer choice in this range is the correct one:

  C.  168

Answer: C.168

Step-by-step explanation:

I will give branliest if you answer all four questions!

Answers

Answer:

3- 0

there's 8 rows, and 48 tiles, 48/8=6, so there's no purple tiles needed

4- 240

36 students + 4 adults = 40, 40 people times 6 full buses = 240 people in total

5- 12

72 flags divided by 6 flags in each row = 12 rows

6- 10, 24, 38

composite numbers are like the opposite of prime numbers, you can divide them by more than just themselves and 1

hope this helps :)

3.) 24 (im not exactly sure)

4.) 240

5.) 12

6.) 10, 24, 38

what is the slope of the line?? help!

Answers

Answer: 1/3

Step-by-step explanation:

The answer is

y = -1/3x + 2/3

QUICK ANSWERS PLEASE!!!
Find the following

Answers

Answer:

DF = 16m

J = 41°

G = 34°

hope this helps

Please Help! A new dirt bike valued at $9000 loses 18% of its value each year. What is the initial price of the dirt bike? I don't understand how to solve this problem so if someone could show me how it would mean a lot.

Answers

Answer:

The new dirt bike should cost $9000

HELP ASAP Which equation matches the following situation: A shirt, x, is discounted 20%; what is the sale price?

y = 1.02x
y = (1 - 0.2)x
y = 1.2x
y = 0.02x

Answers

Answer:

D

Step-by-step explanation:

¿Cual es la medida del diámetro del circulo unitario? ​

Answers

Answer:

2

Step-by-step explanation:

Un círculo unitario es un círculo con un radio de 1

What is the value of x when f(x) = -6. Explain how to find it.
X
-6
у
-12
-6
-3
0
0
3
6
6
12

Answers

Answer:

The function g(x) simply takes the value x and turns it into its reciprocal value . Thus, for instance, the number 5 becomes , and  becomes 2. Note that any value of x works in this function as long as  is defined. As mentioned, fractions work as well as whole numbers, both for positive and negative values; the only value that does not work is 0, since  is undefined (how many times can 0 go into 1?). Thus, the domain of the function is all x in  where x ≠ 0. Let's look at the graph of the function also.

Step-by-step explanation:

The function f simply takes in input value x, multiplies it by 2, and then adds 3 to the result. We can therefore consider what constitutes the set of numbers that the function can accept as an input and what constitutes the set of numbers that the function can yield as an output.

Which product is greater than 3/5. Here are the choices 3/5 X 3/7 3/5 X 0 3/5 X 5/3 Or 3/5 times 1. Not a multi select question please helpppppp!!

Answers

Answer:

[tex]\dfrac{3}{5}\times \dfrac{5}{3}[/tex]

Step-by-step explanation:

The number is [tex]\dfrac{3}{5}=0.6[/tex]

The choices are

[tex]\dfrac{3}{5}\times \dfrac{3}{7}=\dfrac{9}{35}=0.257[/tex]

[tex]\dfrac{3}{5}\times 0=0[/tex]

[tex]\dfrac{3}{5}\times \dfrac{5}{3}=1[/tex]

[tex]\dfrac{3}{5}\times 1=\dfrac{3}{5}[/tex]

So, we have to check which product is greater than 0.6.

Only one of the products is greater than 0.6 which is [tex]\dfrac{3}{5}\times \dfrac{5}{3}=1[/tex].

A bag of eight apples cost $2.88 what's the cost of one apple finally unit rate by dividing $2.88 by eight

Answers

Answer:

0.36 ¢ for each apple in the bag. you can find that out bye dividing 8 by 2.88$ which will give you 0.36

Order the following rational numbers from greatest to least. 2.5, 0.3, -4.5, -2.9, 4.3, -6.2, -1.4, 5.3, -3.5, 1.8 *

Answers

Answer:

5.3, 4.3, 2.5, 1.8, 0.3, -1.4, -2.9, -3.5, -4.5, -6.2

Step-by-step explanation:

A triangle has two sides of length 12 and 13. What is the largest possible whole-number length for the third side?

Answers

Answer:

the 2 side of u have to subtract the numbers then add the numbers

Step-by-step explanation:

A heated piece of metal cools according to the function c(x) = (.5)x − 11, where x is measured in hours. A device is added that aids in cooling according to the function h(x) = −x − 3. What will be the temperature of the metal after five hours? (1 point)
−8° Celsius
26° Celsius
32° Celsius
56° CelsiusWhat is the answer?

Answers

The answer is -8 degrees Celsius

Paula wants to buy 3 shirts and 2 belts. The shirts cost $16.89 each, and the belts cost $8.97 each. Paula has $45.


Which of these amounts is the best estimate of how much more money Paula needs in order to buy the shirts and belts?


$16

$10

$24

$5

Answers

Answer:

23.61 which rounds to 24

Step-by-step explanation:

3 shirts is 16.89 x 3 which is $50.67

2 belts is 8.97 x 2 = 17.94

68.61

then she already has 45 so subtract

13.
Tiziana uses 6 inches of wire to make a necklace and 3 inches of wire to make a
bracelet. If she uses 472 inches of wire in all, how many necklace and bracelet sets can
she make?

Answers

9514 1404 393

Answer:

  52

Step-by-step explanation:

Each necklace and bracelet set will use ...

  necklace + bracelet = 6 in + 3 in = 9 in

So, the number of sets that can be made is ...

  (472 in)/(9 in/set) = 52 4/9 sets

Tiziana can make 52 complete necklace and bracelet sets.

Me ayudan porfass :))

Answers

Answer:

[tex]x=10[/tex]

Step-by-step explanation:

The given triangle is a 30°-60°-90° triangle. Use the following rule:

[tex]hypotenuse=shorter.leg*2[/tex]

We know the length of the hypotenuse, which is 20. Insert the value:

[tex]20=s*2[/tex]

Solve for s. Divide both sides by 2:

[tex]\frac{20}{2} =\frac{s*2}{2} \\\\10=s[/tex]

The length of the shorter leg is 10. Therefore, the value of x is 10.

:Done

Your local pizza store sells medium pizzas for $5.69 each, and breadsticks for $2.49 per order.
For a party, you decide to order 4 pizzas and 3 orders of breadsticks. There is a $3 delivery fee, and a 9.4%
sales tax will be added to the total. What will be the total bill after tax?

Answers

Answer:

5.69 X 4 = 22.76

2.49 X 3 = 7.47

22.76 + 7.47 + 3 = 33.23

33.23/100 X 109.4 = 36.35362

monetary unit round to 2dp

$36.35

Answer:

$36.35

Step-by-step explanation:

This recipe makes 25 cupcakes.
Deepak only wants to make 15 cupcakes.
How much of each ingredient does he need?

Recipe: Makes 25 cupcakes
10 ounces butter
12 ounces sugar
15 ounces flour
5 eggs

Answers

Answer:

6oz butter

7.2oz sugar

9oz flour

3 eggs

Step-by-step explanation:

10÷25=0.4

12÷25=0.48

15÷25=0.6

5÷25=0.2

0.4×15=6

0.48×15=7.2

0.6×15=9

0.2×15=3

mercedes got to choose 2 cupcakes, there were 3 chocolate 1 vanilla and 4 carrot cake what is the probability that she will choose vanilla followed by a carrot cupcake without the replacing?

Answers

Answer:

3/64

Step-by-step explanation:

Mercedes has to choose 2 cupcakes.

Given that;

3 : chocolate

1  : vanilla

4 :carrot cake

The probability that she will choose vanilla followed by a carrot cupcake without replacing will be;

Form a tree diagram for two picks

1/8 * 3/8  = 3/64

In trapezoid JKLM, determine LM.

Answers

Answer:

LM = 12.1

Step-by-step explanation:

Trapezoid

The midsegment (also known as the median or midline) of a trapezoid is the segment that joins the midpoints of the legs.

The midline is parallel to the bases a and b and its length m is equal to the average of the lengths of the bases of the trapezoid:

[tex]\displaystyle m = \frac{a + b}{2}[/tex]

Since JP and PM are congruent and KQ and QL are congruent, PQ is the midline of the trapezoid JKLM.

We are given the midline m=11.4 and one of the bases a=10.7. We can find the other base by solving for b:

b = 2m - a

b = 2*11.4 - 10.7

b = 12.1

LM = 12.1

find the y-intercept for the equation y=15x-3

Answers

Answer:

(0,-3)

Step-by-step explanation:

the y intercept is the last number of the expression; in this case it's negative 3. x is always 0

if you were planning a meal for 24 people, how many dozens eggs would you need to buy if each person were to have 2 eggs each

Answers

Answer:

4

Step-by-step explanation:

If each person has 2 eggs, you'd need 48, and since a dozen is 12, 12*4=48.

Answer:

4 dozen eggs

Step-by-step explanation:

12 is a dozen and 12+12=24.

So you would need 4 dozen eggs to give each person 2 eggs.

Ocsar and his little brother made up a game using coins. They flip the coin towards a cup and receive points for every one that makes it in. Oscar starts with 20 points, and his little brother starts with 18 points. Oscar gets 2 points for every successful shot, and his brother, since he is younger, gets 3 points for each successful shot. Eventually, the brother will have a tied score in the game. How many additional shots will each brother have made? How many points will they both have? mar​

Answers

Answer:

Each brother will need 2 additional shots!

Step-by-step explanation:

If you add 3 to 18 it'll eventually lead to 24, as for 2 plus 20, if you add that up it also gets you to 24 which will make the game tied. And the tied score is 24.

The brothers will have a tied score in the game if both brothers are added with two more shots each.

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

Given,

The points started by Oscar was 20.

The points started by Oscars little brother was 18.

Oscar gets 2 points for every successful shot,

his brother, since he is younger, gets 3 points for each successful shot

If Oscar done 2 more shots his points will be 24.

If Oscars little brother two shots his points will be increased by 6 and will become 24. The brother will have a tied score in the game.

Hence, Each brother will need 2 additional shots

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ2

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