If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to x from the
second equation is substituted into the first equation

3x + 2y = -21
x - 3y = 4

3(3y + 4) + 2y = -21
3(-3y + 4) + 2y = -21
3x + 2(3y + 4) = -21
3x + 2(-3y + 4) = -21

Answers

Answer 1

Answer:

answer is

3(3y+4) + 2y = -21 .


Related Questions

fred has 15000 in his savings account with an interest rate of 1.8%. assuming he doesn't add or subtract from this amount, find the estimated account balance after 22 years

Answers

Answer:

A = $20,940

Step-by-step explanation:

Interest = Principal x Rate x Time

I = prt

I = 15000(.018)(22)

I = 5940

Interest = $5,940

Total Amount = Principal + Interest

A = P + I

A = 15000 + 5940

A = 20940

Marking brainliest!

Don’t use the internet pls!

Answers

I would say based on Lincoln's success and that Lincoln helped inspire Martin. Lincoln won the Civil War which helped open the minds of other people who were pro-slavery so that's what I mean about the success.

if the probability of rain tomorrow is 0.15 what is the probability that it will not rain​

Answers

Answer:

85% or 99.85%

Step-by-step explanation:

If you mean 15% by 0.15 then the probability that it will not rain is 85% because, 100-15=85.

If you mean 0.15% by 0.15 then the probability that it will not rain is 99.85% because, 100-0.15 is 99.85.

Find the values of x and y

Answers

Answer:

x = 54, y = 63

Step-by-step explanation:

117° and the left base angle are adjacent and sum to 180°

base + 117° = 180° ( subtract 117° from both sides )

base = 63°

Since the triangle is isosceles ( congruent legs ) then the 2 base angles are congruent , so y = 63

and x = 180 - (63 + 63) ← sum of angles in a triangle

x = 180 - 126 = 54

Marking brainliest

Please help!

Answers

Answer:

The equation for the speed of the train is: 162 = 3x

I think the speed of the train is 54 miles per hour

Step-by-step explanation:

We know that:

y = distance in miles

x = speed of train (miles/hour)

t = time traveled from the departing station (hours)

The equation: y = xt is given, we can therefore substitute the give values:

y = xt or tx

162 = 3x (This would be the equation)

Now we can find x by diving 3 on both sides of "="

162/3 = x

54 = x (This would be the speed of train)

Hope this helps!

X=y/t or 162/3
Speed is 54mph

Which of these expressions represents the product of t and 13
A. 13- t
B. 13t
C. 13+ t
D. 13 divided by t

Answers

Answer:

B is your answer for your math problem

How many ways can you arrange the letters in the word Vacuum?

Answers

Answer:

The answer is 360 ways

Step-by-step explanation:

Answer:

720 arrangements

So the six letters can be a combination of 6×5×4×3×2×1 letters or 720 arrangements.

Step-by-step explanation:

Somebody help me with this

Answers

Answer:

D s>350000

Step-by-step explanation:

The difference in base salary is 7,000 (45,000-38,000). To earn an additional 7,000, sales must be at least 350,000.

350000 x.02 (2% commission) is 7,000

Can someone help me out with the last three, will mark as brainliest if correct!

Answers

Answer:

x = 65

y = 71

z = 44

Step-by-step explanation:

y = 71 because If two parallel lines are cut by a transversal, then the alternate interior angles formed are congruent

What is the length of each segment?
Segment AB: from A(-2,1) to B(-2, 5)

Answers

Answer:

[tex]length = \sqrt{ {( - 2 - ( - 2))}^{2} + {(5 - 1)}^{2} } \\ = \sqrt{16} \\ = 4 \: units[/tex]

Answer:

4 units

Step-by-step explanation:

In the diagram below, 'AB is parallel to cd. What is the value of y?

Answers

60 jdfjbdjdjdjd ah inebauwkwhiwiwnais

Answer:

60

Step-by-step explanation:

What is the mean of 53,13,34,41 26,61,34,13,69?

Answers

the mean is 38.2
the 2 is repeating

Find the measure of the exterior angle.

Answers

Answer:

33+x+18=2x+3

51+x=2x+3

51-3=2x-x

48=x

Step-by-step explanation:

2x+3

2*48+3

96+3

99

The triangle is actually a right triangle. In step 2, Chelsea incorrectly substituted the values into the Pythagorean theorem. The triangle is not a right triangle, but in step 2 Chelsea incorrectly substituted the values into the Pythagorean theorem. The triangle is actually a right triangle. In step 3, Chelsea incorrectly rewrote the expression on the left side of the equation. The triangle is not a right triangle, but in step 3, Chelsea incorrectly rewrote the expression on the left side of the equation.

Answers

Answer:

????

What's the question here? I would love to help!

which expressions are equivalent to 4-3 over 4-1

Answers

Answer:

B

cause when dividing you are subtracting the exponents

so it 4^-3+1 = 4^-2

you shouldnt have negative exponents

so you flip it, which become 1/4^2

Hope that answers your question

Don't hesitate to comment if you are confused about something

Step-by-step explanation:

A company rents out 18 food booths and 27 game booths at the county fair. The fee for a food booth is $50 plus $6 per day. The fee for a game booth is $65 plus $8 per day. The fair lasts for d days, and all the booths are rented for the entire time. Enter a simplified expression for the amount, in dollars, that the company is paid.

Answers

Answer:

$2655 + $324d

Step-by-step explanation:

total cost of a booth = fixed cost + (variable cost x number of days)

Fixed costs are costs that do not vary with output

Variable costs are costs that vary with production

cost of 18 food booths = 18(50 + 6d) = 900 + 108d

cost of 27 game booths = 27(65 + 8d) = 1755 + 216d

Add the total cost of the food and game booths together 900 + 1755 = 2655

108d + 216d = 324d

solve for X. Assume that lines which appear tangent are tangent

Answers

Answer:

C

Step-by-step explanation:

On a coordinate plane, triangle A B C has points (negative 1, 2), (negative 1, negative 1), (2, negative 1). Given △ABC, use a dilation with the center at the origin to make a similar triangle with side lengths three times as large. What are the coordinates of C' of the image? (–6, 3) (–3, 6) (3, –6) (6, –3)

Answers

Answer:

D

Step-by-step explanation:

Answer: (6, -3)

Step-by-step explanation: just did the assignment on edge

5. A number or symbol multiplied with a variable

Answers

Answer:

Coefficient

Step-by-step explanation:

What is the mode of this data set?
12, 12, 13, 14, 17, 16

Answers

Answer:

Mode = 12

Step-by-step explanation:

If you need--

Median-13.5

Mean-14

Answer:

12

Step-by-step explanation:

the mode is the number that is the most in fashion

here 12 appears the most

Write an exponential function in the form y=ab^xy=ab
x
that goes through points (0, 12)(0,12) and (3, 6144)(3,6144).

Answers

Answer:

y1 = abx1 and y2 = abx2

Step-by-step explanation:

HELP ME WITHS THIS PLEASE, I TRIED DOING IT BUT I can’t

Answers

Answer:

are you sure

Step-by-step explanation:

Answer:

Put an X on D, C, and F

G= 256

A=20

B=560 ( I'm not too sure)

H= 6

E= (I'm sorry I cant do E I have to go)

Step-by-step explanation:

calculate the surface area of the rectangular prism to the tenth of a square centimetre

Answers

Answer:

A=152.32 cm^2

Step-by-step explanation:

A=2(wl+hl+hw)

A=2(6.8*3.4+5.2*3.4+5.2*6.8)

A=2(23.12+17.68+35.36)

A=2(76.16)

A=152.32

What is the slope of the line? PLEASE PLEASE HELP FAST!

Answers

Answer:

slope = 2

Step-by-step explanation:

Calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (0, 0 ) and (x₂, y₂ ) = (1, 2) ← 2 points on the line

m = [tex]\frac{2-0}{1-0}[/tex] = [tex]\frac{2}{1}[/tex] = 2

HELP ASAP! Find the area of the shaded region.

Answers

Answer:

73.4

Step-by-step explanation:

the answer is 73.3966

How can I find the area of the shaded area?​

Answers

I don’t know I thought I did

Find the surface area of the cone. h = 12 ft, r = 5ft, l = 13 ft

Answers

Answer:

total surface area is 267.14

Answer:

90π ft^2.

Step-by-step explanation:

SA = πr(r + l)

= 5π(5 + 13)

= 90π

I need help on this

Answers

Answer:

1200

Step-by-step explanation:

Step 1 convert pounds to ounces

1 pound = 16 ounces

So to convert pounds to ounces we multiply by 16

1500 * 16 = 24000

So there are 24000 ounces in 1500 pounds

Step 2 Find how many 20 ounce containers he can fill.

To find out how many 20 ounce containers he can fill we divide the total amount of ounces of butter that he has by 20

So answer = 24000/20

24000 / 20 = 1200

Therefore he can fill 1200 20 - ounce containers

What's the answer to

"find the value of
√121 + 3√125" "? ​

Answers

Answer:

11+15√5

Step-by-step explanation:

mat.hway

Si a una persona le deben 7/9 de $450000 y sólo le cancelan 3/5 de esa deuda. ¿Cuánto dinero le quedan debiendo?

Answers

Answer:

$140,000

Step-by-step explanation:

Paso 1

Si a una persona le deben 7/9 de $ 450,000

La cantidad que se le debe a la persona se calcula como:

7/9 × $ 450,000

= $ 350,000

Paso 2

Solo se cancela 3/5 de esa deuda.

El monto de la deuda que se cancela se calcula como:

3/5 × $ 350,000

= $ 210,000

Paso 3

Por lo tanto, la cantidad de dinero que debe se calcula como:

$ 350,000 - $ 210,000

= $ 140,000

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