Solve the system using the linear combination method:
x + 5y= -3
2x + 7y=3

Answers

Answer 1

Answer:

3x+12y=0

Step-by-step explanation:

x+2x=3x

5y+7y=12y

-3+3=0


Related Questions

am I right? please only answer if you are positive that you’re correct. thank you!

Answers

Answer:

yes you are correct :)))

An 8-sided solid is labeled with faces 1, 2, 3, skip, 4, 5, 6, skip. What is the sample space for the number solid, and what is the probability of rolling a 1?

A.
{1,2,3,4,5,6,skip,skip}; P(1)=0.125

B.
{1,2,3,skip,4,5,6}; P(1)=0.14

C.
{1,2,3,4,5,6, skip}; P(1)=0.125

D.
{1,2,3,4,5,6}; P(1)=0.17

Answers

Using it's concepts, it is found that the sample space and the desired probability are given by:

C. {1,2,3,4,5,6,skip}; P(1)=0.125

What is the sample space of an experiment?

The sample space is the set that contains all possible outcomes for an experiment.

If an outcome happens more than once, as is the case for the "skip" in this problem, it is shown only once on the sample space, hence for this problem it is given by:

{1,2,3,4,5,6, skip}

What is a probability?

A probability is given by the number of desired outcomes divided by the number of total outcomes.

In this problem, one out of eight outcomes result in a one, hence:

P(1) = 1/8 = 0.125.

Which means that option C is correct.

More can be learned about probabilities at https://brainly.com/question/14398287

The perimeters of two similar right triangles have a ratio of 3 to 5. If the height of the larger triangle is 12 meters, what is the height of the
smaller triangle?

Answers

Answer:

  7.2 meters

Step-by-step explanation:

Similar triangles have linear dimensions that are proportional. The ratio of heights will be the same as the ratio of permeters:

  h/(12 m) = 3/5 . . . . . . . small/large

  h = (3/5)(12 m) = 7.2 m . . . . . . multiply by 12 m

The height of the smaller triangle is 7.2 meters.

What is the value of x?

Answers

[tex]\sin 30^{\circ} = \dfrac{LJ}{8\sqrt 2}\\\\\implies LJ = 8\sqrt 2 \sin 30^{\circ} =8\sqrt 2 \cdot \dfrac 12 = 4\sqrt 2\\\\ \text{Now,}\\\sin 45^{\circ} = \dfrac{LM}{LJ} \\\\\implies LM = \sin 45^{\circ} LJ\\\\\implies x = \dfrac 1{\sqrt 2} \cdot 4\sqrt 2 = 4 ~~ units.[/tex]

Answer:

x = 4

Explanation:

[tex]\sf sin(x)= \dfrac{opposite}{hypotensue}[/tex]

Solve for LJ:

[tex]\hookrightarrow \sf sin(30) = \dfrac{LJ}{8\sqrt{2} }[/tex]

[tex]\hookrightarrow \sf sin(30)*8\sqrt{2} ={LJ}[/tex]

[tex]\hookrightarrow \sf {LJ} = 4\sqrt{2}[/tex]

Solve for LM:

[tex]\hookrightarrow \sf \sf sin(45)= \dfrac{LM}{4\sqrt{2} }[/tex]

[tex]\hookrightarrow \sf \sf sin(45)*4\sqrt{2} = {LM}[/tex]

[tex]\hookrightarrow \sf {LM} = 4[/tex]

Complete the sentence.
If a section of a cicle graph needs to represent 15%, then its angle measure will be _____ degrees. ​

Answers

Answer:

54

Step-by-step explanation:

We know that a circle is 360 degrees. Therefore, ↓

360° -----------> 100%

x°-----------> 15%

[tex]x = \frac{15}{100} \times 360 \\ = 54[/tex]

Hope this helps =)

help, Surface area of cubes and prisms

Answers

Answer:

2382

Step-by-step explanation:

You can use rectangle surface area= l × b

2×(27×21)+2×(27×13)+2×(21×13)

=2382

A person who can afford a monthly payment of __________ and signed a mortgage with a monthly payment of __________ was most likely the victim of predatory lending.

A. $900; $1000
B. $900; $800
C. $900; $900
D. $900; $700

Answers

Answer:

A . 900-1000

Step-by-step explanation:

James found a pair of shoes he wanted at two different stores. At store A they were $35 and he had a 20% off coupon. At store B they were $40 and he had a 30% off coupon. Both stores had 7% sales tax. Which would be the better deal, and by how much?

Answers

Answer: you gotta add

35+20 and that =55

55+30 and that =85

85+40 and that =125 the next step is

125+7 =132

Step-by-step explanation: hope this helps:)

A spinner with 10 equally sized slices has 2 blue slices, 4 yellow slices, and 4 red slices. The dial is spun and stops on a slice at random. What is the probability that the dial stops on a blue slice? Write your answer as a fraction in simplest form.

Answers

Answer:

1/5

Step-by-step explanation:

the number of all slices is 10.. and you got 2 blue ones

so you get 2/10 and if you simplify it you get 1/5

is this correct?

A.yes

B. No

C. Maybe

D. I DUNNO???!!!

Answers

Answer:

its yes

Step-by-step explanation:

because it's x 2  I hope this helps      

 

help plsssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss

Answers

Answer:

G. Between 6 and 7

Step-by-step explanation:

As 41 lies between the square of 6 and 7

$
6
4
No
2+
of
black
tan
gray white
Color
green
orange
O green
O orange
(a) Which color had the fewest T-shirts sold?
black
o tan
O gray O white
How many T-shirts of that color were sold?
T-shirt(s)
(b) How many more gray T-shirts were sold than tan T-shirts?
more T-shirt(s) sold
(C) For how many colors were there fewer than 10 T-shirts sold?
color(s)
Explanation
Check
© 2022 McGraw HIN

Answers

Answer:

a. tan

3 T-shirts

b. 7 - 3 = 4 T-shirts

20 characters just for you brainly

Answers

Answer:

first and last option

Step-by-step explanation:

the first and the last are increasing from left to right since the slope is positive.

Figure 1
Figure 2
B
D
E
С
Z
128 cm
2
am
Area of Figure 1 =
Area of Figure 2 =
Perimeter of Figure 1 = 24 cm
Perimeter of Figure 2 = 21 cm
BC=
DE = 7 cm

Answers

Tip: Go to the internet and put the topic you are focused more on that you posted in Brainly

Step-by-step explanation:

Try it to give you some help

6. Freddy gets an allowance of £50 each month.
His parents increase is by 35%. How much does
Freddy now receive for his allowance?

Answers

Answer:

$67.5

Step-by-step explanation:

New value =

50 + Percentage increase =

50 + (35% × 50) =

50 + 35% × 50 =

(1 + 35%) × 50 =

(100% + 35%) × 50 =

135% × 50 =

135 ÷ 100 × 50 =

135 × 50 ÷ 100 =

6,750 ÷ 100 =

67.5

can someone please help me solve this? thank you!

Answers

Find the circumference:

Circumference = pi x radius x 2 = 138.16 feet


Linear travel = circumference x rotations


linear travel = 138.16 x 20 = 2.763.2 feet.
Round off to 2,763 feet

100 pts what is 2X2+6X5+8

Answers

Answer:

It's 42.

Step-by-step explanation:

Order of operations:

4+6*5+8

4+30+8

34+8

= 42

Therefore, the answer is 42.

Answer:

42

Step-by-step explanation:

I WILL GIVE BRAINLEST
find the area of the composite figure (round to the nearest hundredth) A) 35.26. B) 41.70. C) 41.86. D) 48.46

Answers

Answer:

41.86 is the right answer

Step-by-step explanation:

HURRY!!!!
What is the volume, in cubic inches, of the right rectangular prism with a length of 5 inches, a width of 8 inches, and a height of 20 inches?

Answers

V= length x width x height

So 5 x 8 x 20

5 x 8 = 40

40 x 20 = 800

solve for x ~
[tex]4x - 96 = 0[/tex]


thankyou ~​

Answers

Step-by-step explanation:

4x - 96 = 0

transferring 96 to Right side

4x = 96

x = 96/4

x = 24

Hope it helps you :)

4x-96=0
4x=96
X=96/4
X=24

Hope this helps:)

(c) 111 IT IIISH (Find the value of):
6
E (4n -2)
1 =2

Answers

Answer: 70

Step-by-step explanation:

. Carlee surveyed customers as they left a convenience store. She asked them, “How many items did you
purchase?” The results are shown in the line plot.
(a) How many customers were surveyed?
(b) What was the greatest number of items purchased by a customer?
(c) How many customers purchased 9 items?
(d) How many customers purchased at least 5 items?
(e) What was the median number of items purchased?

Answers

Answer:

We need the picture of the line plot in order to answer the question

Step-by-step explanation:

If 12% of a number is 30, find 4% of that number.

Answers

4% of 30 would be 10

12%= 30

-> 100%= 30÷12×100

-> 100%= 250

4% of 250

-> 4%=250÷100×4

-> 4%= 10

What is 594 minus 236?

Answers

Answer:

358

Step-by-step explanation:

the answer is 358 because

Explain why 0.323232 is greater than 0.32

Answers

Answer:

0.323232 is the greater number

Step-by-step explanation:

This is because if you write the numbers the same way, there is a difference between the first 0 and the 3.

Look here: 0.323232       0.320000

You can see that there is a 3 after the first 2, therefore that shall deem the greater number.

One side of a rectangle is twelve feet longer than three times another side of the rectangle . Find the sides we also know that the area of the rectangle is 231f * t ^ 2

Answers

Answer:

Length: 33 ft

Width or side: 7 ft

Step-by-step explanation:

Check the attachment.

For the polynomial f(X)=2x^3-9x^2+11x-20
As
X -> -♾️,f(X) -> ♾️

A. True
B. False

Answers

Answer:

False

Step-by-step explanation:

I'm assuming its because x isn't negative infinity because the leading coefficient is positive

Consider this graph of a standard normal curve.





What percentage of data is represented by the shaded area?

Enter your answer as a number, like this: 42%

Answers

34% since it falls between -1 to 1 which is the 68 percentile. Therefore 68/2 = 34%

Find the median of the set of numbers below.
15, 16, 15, 7, 21, 18, 19, 20, 11

Answers

Answer :

16

Explanation :

You arrange the numbers from least to greatest. 7,11,15,15,16,18,19,20,21 After you do that you will find the numbers that are in the center and that will be your median.

What is the equation
of the line that passes through the point (-2, -3) and has a
slope of -1?

Answers

Answer:

Step-by-step explanation:

Hello:

an equation   for the line is : y =mx +b    (m: is a slope )

given : m = -1

the equation is : y = -x+b

through the point (-2,-3) :-3 =-(-2)+b....... b=-5

the equation is : y = -x-5

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