Mathematics High School

can you tell me how to solve this problem using substitution step by step?

y = -2x - 9 and 6x - 5y = - 19

Answers

Answer 1

Answer:

x = -4

Step-by-step explanation:

The first equation tells us what y is equal to. We then substitute wherever there is a y with what y equals.

y = -2x - 9

6x - 5y = -19

6x - 5(-2x-9) = -19

6x + 10x + 45 = -19

16x + 45 = -19

16x = -64

x = -4

Related Questions

Solve for X:
WILL GIVE BRAINLIEST!

Answers

The whole thing all together is 120 and the total woulde be 190 for that shape so your answet is 70 :D

Brainliest if correct please help

Answers

Answer:

3/10

Step-by-step explanation:

so 1/5 probability

3 is the frequency so

10 times spun

3/10 is the answer

2x + 3y = -10
5y = 4x - 2

Answers

Answer:

(-2, -2)

Step-by-step explanation:

Answer:

(-2,-2)

Step-by-step explanation:

M a t h w a y

Write the equation of a line in point-slope form
that has a slope of -2 and passes through the point
(-5,9).
A. y - 9 = -2(x + 5)
B. y - 9 = -2(x – 5)
C. y - 5 = -2(x – 9)
D. y -5 -2(x + 9)

Answers

Format: y-y1 = m(x-x1)
y1 = 9, x1 = -5, m = -2
Solution: A. y-9 = -2(x+5)

The graph shows the number of items sold by category at a yard sale.
Items Sold
28
24
Frequency
20-
16
12
8
4
0
Toys
Books
Décor
Clothing Electronics
Categories
What was the total number of items sold at the yard sale?
A. 60
B. 62
O c. 64
D. 66​

Answers

Answer: 62

Step-by-step explanation: items sold is 28 and 24 so add them which is 72subtact 20

I might be wrong sorry

i really need help asap

Answers

answer is d (-3,1) hope i helped:)

Answer:

D (-3, 1)

Step-by-step explanation:

12. What is the length of the radius of a circle whose area is 100x?
A. 5
B. 10
C. 20
D. 25

Answers

Answer:

A.5

Step-by-step explanation:

d=2 sqare root Area÷pi

d=11.2 ÷2

radius = 5

Find the rule, and type the missing number in the sequence. 920, 855, 790, ____

Answers

It’s “725”, just subtract it by 65..
It’s 725,just by subtracting it by 65...

Please hurry!! Steven and Dan like to play a lot of video games. On Sunday, Dan played 4 fewer than twice the number of hours that Steven played. They played a total of 17 hours on Sunday. Which system of equations models this situation if Steven played s hours and Dan played d hours?

A) d=4-2s s+d=17

B) s=2d-4 s=17-d

C)d=2s-4 s+d=17

D)s=4-2d d=17-s

Answers

Answer

Step-by-step explanation:

Answer:i think A or C

Step-by-step explanation:

i'm not sure about my answer but i chose C and i don't know if i got it wrong or right but its either both of them i hope this helps.

Which Angles are Congruent?

Angle A and Angle B


Angle C and Angle B


Angle A and Angle C

Answers

Answer:

Angle b

Step-by-step explanation:

Angles A and B.  

Explanation: x and 9 are congruent because of isosceles triangle

3/4 x 5/6 plssssssssssss help

Answers

the answer is 5/8 :)

3/4*5/6

cross out 3 and 6 and divide by 3

3/3=1

6/3=2

1/4*5/2

multiply the numerator together

1*5=5

multiply the denominator together

4*2=8

1/4*5/2=5/8

answer:

5/8

Which expression is equivalent to (3a + 7) (2a - 5)?
OA. 5a2 - a - 35
B. 5a2 - 29a - 35
O
OC. 6a2 - a - 35
O D. 6a2 - 29a - 35

Answers

Cross multiply
(3a+7)(2a-5)
5a2-15a+14a-35
5a2-a-35
ANSWER:A

please help me out ​

Answers

Answer:

C

Step-by-step explanation:

BRAINLIEST PLEASE

Answer: A

Step-by-step explanation:

12 and 16

Somebody can help me with this ,, I’m going to really appreciate Is function,,, Algebra

Answers

Answer: b

Step-by-step explanation:

itssssssss b :)))))))))(

A circle is graphed on a coordinate grid. It’s center is at (3,4), and the circle passes through point (3,1). What is the approximate area, in square units, of the circle?

Answers

Answer:

254.3 sq.units

Step-by-step explanation:

radius of circle

(3,1)-(3,4)= (0,-3)

r= 9 units

Area= πr^2

Area= 254.3 square units

Find the smallest possible integer value of k for which 264k is a perfect square.

Answers

Step-by-step explanation:

264k

= 2³ * 3 * 11 * k

Hence, k = 2 * 3 * 11 = 66.

Answer:

k = 66.

Step-by-step explanation:

Find the prime factors of 264

264  =  2 * 2 * 2 * 3 * 11

The nearest perfect square will contain  one more 2, one more 3 and one more 11

=  264 * 2 * 3 * 11

= 17424.

Use the table to find the ratio. Enter the ratio as a fraction in simplest form.


Color of socks
Numberof socks


white
black
blue
brown
3
8
6
3

The ratio of white socks to brown socks is

Answers

The answer is 1/1 or 1

2 2/3 divided by 1 1/6

Answers

Answer:

2.28

Step-by-step explanation:

Answer:

2/9

Step-by-step explanation:

calculated

Mai is flying a plane at an altitude of 1600 ft. She sights a stadium at an angle of
depression of 35°. What is mai’s approximate direct distance to the stadium?

Answers

Answer:

2,789ft

Step-by-step explanation:

The set up will give a right angled triangle.

The altitude will be the opposite side = 1600 ft

The angle of depression = 35°

approximate direct distance to the stadium is the hypotenuse of the trisngle= x

Using the SOH trig identity to get the distance

sin 35 = opp/hyp

sin 35 = 1600/x

x = 1600/sin35

x = 1600/0.5736

x = 2,789.4ft

Hence mai’s approximate direct distance to the stadium is 2,789ft

Someone please help me!!

Answers

Sorry the question isn’t loading on my screen

4 + 3x = 3х + 5
4 = 5

Answers

Answer:

4≠5

There is no solution

Step-by-step explanation:

Help plsss and Idk if you can see the questions or not but if u can't lmk

Answers

A:

y=(oranges, x, for example)/4

B:

1: 1.25

2: 24

Help !!! I need help With this question!

Answers

Answer:

135°

Step-by-step explanation:

I don't know exactly but iv done the math and I think it's C 135°

Urgent!!!!

If you were 6' 6 1/2" tall, about how many meters tall would you be? Hint: "There are 3.28 feet in a meter."

6.4 meters
2 meters
1.8 meters
7 meters
3.5 meters

Answers

Step-by-step explanation:

2 meters is the answer

please give me brainliest

Samantha is on the basketball team. At her game, she scored 19 out of 25 baskets. What percentage of shots did Samantha make?

Answers

Answer:

SAMANTHA IS ON A BASKETbALL TEAM I  NEVER KNEw

Step-by-step explanation:

She made 76% of the shots she took

PLEASE HELPPP!!!!
what value(s) of x will make x^2 = 100 true?

A. 50 and -50

B. 10 and -10

C. 10

D. )10

Answers

Answer:

C

Step-by-step explanation:

I choose C because when you have an exponent whatever number u have over the c you multiply whatever number is chosen and when divide 100 by 10 you get 10. Hope I helped❤✌

Answer: 10

Step-by-step explanation:

10 x 10 = 100

50 x 50 = 2,500 which is wrong

-10 x 10 = -100 false

A group of friends went fishing. They each caught 20 fish but not all of them were keepers. Which person was able to keep 3/5 of the fish that he or she caught?

Answers

Answer:

Those who were able to keep 12 fishes

Step-by-step explanation:

Given

Total = 20 (each)

Required

Which was able to keep 3/5

First, we need to calculate 3/5 of the total number of fishes

Fish = 3/5 * 20

Fish = (3 * 20)/5

Fish = 60/5

Fish = 12

From the calculation above, only those who keep 12 of the 20 fishes were able to keep 3/5 of their fishes

Which equation is an increasing linear relationship?
y=-100x+150
y=100x-150
y= -10x

Answers

The answer is 5x because it’s added

Plsss help I’ll give u brainlest and 10 points

Answers

The answer would be B I hope this helps.

which list shows the area ordered from greatest to least​

Answers

Answer:

C

Step-by-step explanation:

i think

The correct answer is C
Other Questions
Body cell organ of production What kind of mood is created by the dialogue in the selection? Anne Frank What is the answer here? Which climate conditions best describe the Fertile Crescent?hot and drymild in winterwarm and damprainy in summer When people are hungry they can become a bit erratic how have you experienced this in your own life ? What was the importance of the Harlem Hellfighters regimental band?Select the best answer from the choices provided.A. It was composed of the bravest soldiers in the unit.B. It helped make jazz music popular in France.C. All of its members won the Medal of Honor.D. The band was disbanded by racist superior officers. What does x = answer choices4169 Would this following sentence be imperfect or preterite in spanish?Este semestre, antes de tener el primer examen, yo... What is the answer to this question number 2? Read the sentences from the text.He took a soft, silvery metal called pewter, which he had in his workshop, and made a tiny model of a famous building in Austria. Perzy placed the little structure into the globe and watched the snow fall on it.Which words from the sentence help to define structure? Choose two answers. A. metal B. pewter C. workshop D. model E. building F. snow Can you find the solution Im so confused Find the equivalent equation that does not contain fractions 2/3 x 7=1/2 The one term below that best describes how an individual can either test, design, or develop is: Group of answer choices Self-organizing T-shaped skills Musketeer attitude High bandwidth communications Help meeeeeeeeePleaseeee Whats a good summary for pseudoscience? how can we unlock the 90% of our brain that we never us??? Union City Bakery uses a chocolate chip muffin recipe that yields 1/2 cup of milk for every batch of 12 chocolate chip muffins. Based on the recipe: How much milk is needed to make each muffin? How much milk in needed to make 24 chocolate chip muffins? Help! - Answer = Brainliest!Thanks! Write down the inequality described by "half of x is no more than three", and solve for x. How does president Kennedys use of metaphor support the purpose of his speech