Solve the system of equations 3x – 3y = 30 and 2x + y = 11 by
combining the equations.

Answers

Answer 1
Times bottom equation by 3 and top by 2 to get the same coefficient of x
6x-6y=60
6x+3y=33
Minus the bottom by the top
-9y=27
y=-3
substitute this in to one of the equations
2x -3 = 11
add 3 to both sides
2x=14
x=7

Related Questions

Can someone pleaseeee help and if you’re correct I’ll give u brainlist!

Answers

Answer:

Rotations, Reflections

Step-by-step explanation:

This is going to be our answer because we know that a figure has some kind of rotation.

A rotation is when a shape can be rotated in some way. A reflection is a transformation representing a flip of a figure. Figures may be reflected in a point, a line, or a plane. When reflecting a figure in a line or in a point, the image is congruent to the preimage. A reflection map every point of a figure to an image across a fixed-line.

So our answer would be Rotations, Reflections!

Hope this helps!

If it is correct please mark as Brainllest!

Have a good Day!

Which simplified equation is equivalent to the equation shown below?
9+6x + 2x - 1 = 24
O A. 3x+3 = 24
B. 15x + 1 = 24
O C. 10+8x = 24
O D. 8+8x = 24

Answers

the answer is D. 8+8x=24

3(x-10)+7=10 then x is?​

Answers

Answer:

x = 11

Step-by-step explanation:

3(11 - 10) + 7 =

3 + 7 = 10

hope this helped

what's the value of x with 125° and 31°​

Answers

24.8% because 31 is the percentage of 125

Hong Wu means what?

great ruler
leader of peasants
father of dynasties
vast military power

Answers

Answer:

Hong Wu means...

Step-by-step explanation:

The last one

Answer:

Its D

Step-by-step explanation:

si juan tiene 7 manzanas y le da 5 a jose ¿cuantas manzanas le quedan a juan?​

Answers

Answer:

2

Step-by-step explanation:

por que el le dio 5 manzanas a jose y le quedaron 2

Solve the system by substitution.
y = -3x +4
y = 2

Answers

Answer:

(2/3,2)

Step-by-step explanation:

3*2/3+4

simplify  2=2

Which graph represents the solution for the equation 1/2 x - 1 = -x + 2?

Answers

Answer:

b

Step-by-step explanation:

x=2

Answer:

b

Step-by-step explanation:

The binomial (x+2) is a factor of ?

1). 2x^{2} -5+3
2). x^{2} +5x+18
3). x^{3} +5x^{2} + 18
4). x^{3} +5x+18

Answers

Answer:

4). [tex] x^{3} +5x+18 [/tex]

Step-by-step explanation:

The binomial (x+2) is a factor of [tex] x^{3} +5x+18. [/tex]

Since, (x + 2) is a factor.

So, x = - 2 is a root

Plug x = - 2 in [tex] x^{3} +5x+18 [/tex]

We find:

[tex] x^{3} +5x+18 [/tex]

[tex] =(-2)^{3} +5(-2)+18 [/tex]

[tex] =-8 - 10+18 [/tex]

[tex] = - 18+18 [/tex]

[tex] = 0 [/tex]

Since, at x = - 2 the value of the expression [tex] x^{3} +5x+18 [/tex] becomes zero.

Therefore, (x + 2) is a factor of [tex] x^{3} +5x+18 [/tex]

What is "five thousand, six" in standard form?

Answers

Answer:

5,006 :)

Step-by-step explanation:

Which expression shows the result of applying the distributive property to 7(x + 11)?

Answers

Answer:

7x+77

Step-by-step explanation:

7(x+11)

=(7)(x+11)

=(7)(x)+(7)(11)

=7x+77

The equivalent expression from the distributive property is 7x+77.


What is an expression?

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that the expression is 7(x + 11). From the distributive property, the expression will be calculated as:-

E = 7(x+11)

E=(7)(x+11)

E=(7)(x)+(7)(11)

E=7x+77

Therefore, the equivalent expression from the distributive property is 7x+77.

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add 3 to h, then subtract 9 from the result

Answers

Answer:

3h-9

Step-by-step explanation:

you can't fit it into an equation because 1, i dont  a image of it and 2, you can't subtract a number from a coefficient/variable

Work out the ratio of 40 centimetres to 2 metres give your ratio in its simplest form

Answers

Given:

Ratio of 40 centimeters to 2 metre.

To find:

The ratio in its simplest form.

Solution:

We know that,

1 m = 100 cm

2 m = 200 cm

We have, ratio of 40 centimeters to 2 metre.

[tex]Ratio=\dfrac{40\ cm}{2\ m}[/tex]

[tex]Ratio=\dfrac{40\ cm}{200\ cm}[/tex]

[tex]Ratio=\dfrac{40}{200}[/tex]

[tex]Ratio=\dfrac{1}{5}[/tex]

[tex]Ratio=1:5[/tex]

Therefore, the required ratio in the simplified form is 1:5.

Hi!!! CLICK HERE!!! please answer this question well :)) i'll try to give brainliest when i can! thanks guys.

Answers

Step-by-step explanation:

its too blurry I can't see the numbers

Can you please take an image that is more clear than this? I barely see the numbers and I don’t want to answer you question wrongly

The vertex of the graph of g(x) = 3|x| + 4 is

Answers

The answer is (0,4).....

first to answer gets brainleist! and 15-20 points ! ! i only need answers no step by step

Answers

Use a fraction calculator 16/32

PLEASE HELP!!! 7TH GRADE PRE ALGEBRA!!
WILL MARK BRAINLIEST IF CORRECT!

The areas of the squares adjacent to two sides of a right triangle are shown below.

35
units
2
35 units
2

50
units
2
50 units
2

?
units
2
? units
2

What is the area of the square adjacent to the third side of the triangle?

units
2
2
squared

Answers

Answer:

50 units.

Step-by-step explanation:

Solve for x 6 = 2( x + 0)

Answers

Answer:

x = 3

Step-by-step explanation:

Answer: x = 3

Step-by-step explanation:

Decide if each expression is equivalent to 2^6 or 4^4

Answers

[tex]\huge\text{Hey there!}[/tex]

[tex]\mathsf{2^6 = 2\times2\times2\times2\times2\times2}\\\mathsf{2\times2\times2\times2\times2\times2}\\\mathsf{2\times2=4}\\\mathsf{4\times4\times4}\\\mathsf{4\times4=16}\\\large\mathsf{16\times4=64}\\\mathsf{2^6 = \bf{64}}[/tex]

[tex]\mathsf{4^4=4\times4\times4\times4}\\\mathsf{4\times4\times4\times4}\\\mathsf{4\times4=16}\\\mathsf{16\times16}\\\mathsf{16\times16=256}\\\mathsf{4^4=\bf{256}}[/tex]

[tex]\boxed{\boxed{\mathsf{Answer: 64\neq 256}}}\huge\checkmark[/tex]

[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

easy:
what is the surface area of the rectangular prism?
L times W times H= 3 cm times 2 cm times 4 cm

Answers

Answer:

l x w do the the math

Step-by-step explanation:

there

Answer:

u said free poinstt on that persons answer so Hi

Step-by-step explanation:

the hypotenuse of a triangle is 17 yds long and leg one is 8yds long what is the length of leg two

Answers

Answer:

15

Step-by-step explanation:

8^2 + b^2 = 17^2

64 + b^2 = 289

289 - 64 = 225

square root of 225 = 15

Jillian has a doctor appointment at 10:20 a.M. If she takes 1 hour and 25 minutes to shower and dress, 25 minutes to eat breakfast and 30 minutes to drive to the doctor's office, what time should she wake up?

Answers

Answer:

she wake up at 8:00 AM

Step-by-step explanation:

The time she should wake up is

If she takes 1 hour and 25 minutes for shower & dress

25 minutes for breakfast

30 minutes to drive

So total time she takes 140 minutes i.e. 2 hours 20 minutes

So she wake up at 8:00 AM

The same would be considered

Answer: 8:00 am

Step-by-step explanation: first you take 10:20 am, then you subtract 30min. then 25min. then an 1:25 you get 8:00am.

In a bag of marbles, 1/2 are red, 1/4 are blue, 1/6 are green and 1/12 are yellow. You pick a marble without looking. What color marble are MOST likely to be choose?

Answers

Answer:

Its red becasue 1/2 is greater than all of them

The most likely color of the marble that will be chosen is red.

What is the probability?

Probability refers to a possibility that deals with the occurrence of random events.

The probability of all the events occurring need to be 1.

The formula of probability is defined as the ratio of a number of favorable outcomes to the total number of outcomes.

P(E) = Number of favorable outcomes / total number of outcomes

We are given that;

Number of red marbles in the bag=1/2

Number of blue marbles in the bag=1/4

Number of green marbles in the bag=1/6

Number of yellow marbles in the bag=1/12

Now,

To determine the most likely color of the marble that will be chosen, we need to calculate the probability of selecting each color. The probability of selecting a red marble is 1/2, the probability of selecting a blue marble is 1/4, the probability of selecting a green marble is 1/6, and the probability of selecting a yellow marble is 1/12.

To compare the probabilities, we need to find a common denominator. The common denominator for 2, 4, 6, and 12 is 12. So, we can rewrite the probabilities as:

Probability of selecting a red marble = 6/12

Probability of selecting a blue marble = 3/12

Probability of selecting a green marble = 2/12

Probability of selecting a yellow marble = 1/12

Since the probability of selecting a red marble is the highest among all the colors, it is the most likely color to be chosen.

Therefore, by probability the answer will be red marble.

Learn more about probability here;

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24y-32 pls help ill give you 10 points

Answers

Answer:

8(3y-4)

hope this help :)

Please someone help me !!! Thanks

Answers

Answer:

hard to read, can you take another picture please?

Step-by-step explanation:

The heights of the three tallest boys in a fifth–grade class are 1.575 m, 1.526 m, and 1.474 m. Which is one of the three boys' heights rounded to the nearest hundredth of a meter?
answers
1.57 m
1.48 m
1.52 m
1.47 m

Answers

Answer:

D. 1.47

Step-by-step explanation:

Answer:

1.47

Step-by-step explanation:

Need a little with this math Question

Answers

Answer:

it would be the third one ( 0,3)

need help on this question please help

Answers

Answer:

52

Step-by-step explanation:

Give Brainlest

Becca solved the division problem 1.8 ÷ 0.3. Her work is shown below. Long division problem showing one and eight-tenths divided by three-tenths equals six-tenths Part A Use the drop-down menus to explain the mistake Becca made. Becca should have the dividend and the divisor by and moved the decimal point in the quotient to the .

Answers

Answer and Step-by-step explanation:

The complete options to choose from in order to explain her mistake are not shown, therefore I'll solve the problem generally.

To solve 1.8/0.3 easily we multiply but numerator and denominator by 10

(1.8*10)/(0.3*10) = 18/3 = 6

The dividend and the divisor should have been multiplied by 10 and the decimal point in the quotient should have been shifted to the right by Becca.

Both the dividend and the divisor must be changed such that there are no decimal places in the divisor before dividing decimals. Becca made a mistake by not taking this change into account.

Becca needed to multiply both the dividend (1.8) and the divisor (0.3) by 10 to get rid of the decimal places in order to divide 1.8 by 0.3 correctly. As a result, the issue would change to 18 3.

When the division is done properly, we see that 18 3 equals 6, leaving no residual.

Therefore, Becca made a mistake by failing to multiply both the dividend and the divisor by 10.

For similar questions on division

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Helpppppppp plssssssssssssss

Answers

Answer:

its the first one

Step-by-step explanation:

if the fractions have the same denominator, all you have to do is add the numerators across.

Answer:

A

Step-by-step explanation:

Slow down, take a breath.

All of the fractions have the denominator of 12 so you dont need to worry about finding a common denominator.

this is simple addition:

1+5+5=11, simple as that

i hope this helps u!

remember to stop and think,

pls give thx and brainliest

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