Solve the following set of equations by Cramer's Rule
3x + 2y = 12
x + 5y = 17​

Answers

Answer 1

Answer:

please check the pdf the solution for your answer is in it. hope it helps :)

Step-by-step explanation:


Related Questions

HELP PLEASE IM ON A TIMER!!!
To buy a PS5 bundle, Amir borrowed $850 for 2 years at a simple interest rate of 2.5%. How much did he have to pay back in all? A.$42.50 B.85.00 C.$850 D.$892.50

Answers

Answer:

d.

Step-by-step explanation:

Answer:

D. $892.50

Step-by-step explanation:

First we find out the interest:

850 * 2.5% = 21.25

Since this is 2 years we multiply the interest by 2.

21.25 * 2 = 42.50

Now we add the interest with the amount borrowed.

850 + 42.50 = $892.50

So, the answer is $892.50 in total.

Hope this helps! :)

A university law school accepts 7 out of every 12 applicants. If the school accepted 686 students, find how many applications they received.
The school had applicants

Answers

Answer:

1176 applications

Step-by-step explanation:

7:12 accepted:applied

686 = 7

686 / 7 = 98

98 x 12 = 1176

Some candy bars are on a plate. Each candy bar is the same size. Nine friends are going to share the candy bars equally. Each friend gets one-half a candy bar. How many candy bars are on the plate? Between what two whole numbers does the amount of candy bars shared lie? Show all your mathematical thinking.

Answers

Step-by-step explanation:

How many candy bars are on the plate?

1 and a half multiplied by 9 = 13 and a half

There are 13 and a half/13.5 candy bars are on the plate.

Between what two whole numbers does the amount of candy bars shared lie?

13.5 lies between 13 and 14.

Hope it helps!!!!

can someone help me asap​

Answers

Answer:

a) hundreds

b) tens

c) hundreds

d) hundreds

Answer:

This is easy!!

Step-by-step explanation:

1. hundreds

2. tens

3. hundreds

4. hundreds

Hope this Helps!!

A man was 62 years old 18 years ago.what Will be his age in 6 years time​

Answers

Answer:

Step-by-step explanation:

As the man was 62 years old 18 years ols so first we have to add 18 to 62

=80

So, now we have to find his age after 6 years so we should just simply add 6 to 80

=86

He will be 86 years old.

Hope this helps you :-) :-)

Diego predicts that his basketball team has a 23 probability of winning each of their next 7 games. Select two ways Diego could accurately simulate the number of games his team will win.

Answers

Answer:

(c) and (e)

Step-by-step explanation:

Given

[tex]Pr = \frac{2}{3}[/tex]

Required

Which 2 options can be used to simulate the given probability.

The two options are (c) and (e)

The proof is as follows;

Option (c)

We have:

[tex]Rolls = 7[/tex]

A cube has 6 faces. So:

[tex]S = \{1,2,3,4,5,6\}[/tex]

[tex]n(S)=6[/tex]

The probability of getting ones, twos, threes, and fours is:

[tex]Pr = \frac{n(1,2,3,4)}{n(S)}[/tex]

In: [tex]S = \{1,2,3,4,5,6\}[/tex]

[tex]n(1,2,3,4) = 4[/tex]

So:

[tex]Pr = \frac{4}{6}[/tex]

Simplify

[tex]Pr = \frac{2}{3}[/tex]

Option (e)

We have:

[tex]White = 10[/tex]

[tex]Red = 5[/tex]

[tex]Count = 7[/tex]

Record the probability of white.

This is calculated as:

[tex]Pr = \frac{White}{Total}[/tex]

[tex]Pr = \frac{White}{White + Red}[/tex]

[tex]Pr = \frac{10}{10+5}[/tex]

[tex]Pr = \frac{10}{15}[/tex]

Simplify

[tex]Pr = \frac{2}{3}[/tex]

Khan academy again, please help

Answers

I think the answer is 30

Answer:

32

Step-by-step explanation:

lol what it's the same exact question again

6 x 10 = 60

60 - 2 - 6 - 20 = 32

Four friends are told that the average (mean) of their grades for their favorite class is 84.5%.



Anthony got 86%, Jasmine got 92%, and Kaitlyn got 70%.

Jonathan's grade was not revealed.
What grade did Jonathan get?
PLEASE HELP SOON

Answers

Multiply the average by number of people:

84.5 x 4 = 338

This means the total of the 4 grades need to equal 338

To find Jonathan’s grade subtract the other 3 grades from 338:

338 - 86 - 92 -70 = 90

Jonathan’s grade was 90

PLEASE HURRY I WILL GIVE BRAINLIEST!!!!!!
Jessie borrowed $15,000 for 15 years to make some improvements to his house. If he repaid a total of 20,625 at what simple interest rate does Jessie borrow the money? A.1.5% B.1.75% C.2.25% D.2.5%

Answers

Answer:

C

Step-by-step explanation:

Answer:

The answer is C, 2.25%

Step-by-step explanation:

Hope it helps!!:)

I need help I’m kind of stuck on this question

Answers

Answer:

10ft^2

Step-by-step explanation:

16in/4in =4ft for the length

10in/4in= 2.5ft for the width

so 4ft x 2.5ft =10ft^2

so 10ft^2

Each week, Darin's Lawn Service mows 90 lawns in 45 hours at a housing c
The lawns in the complex are the same size.
At this rate, how many hours will it take Darin to mow 12 lawns?
Complete the table.

Answers

9514 1404 393

Answer:

  6 h

Step-by-step explanation:

The bottom number in the table is half the top number. The missing value is 6 (hours).

__

I like to put the variable in the numerator of a proportion. Here, we can write it as ...

  t/12 = 45/90

Multiplying by 12 gives ...

  t = 12(45/90) = 12(1/2) = 6

It will take Darin 6 hours to mow 12 lawns.

Answer: 6 is going to be the answer!

Step-by-step explanation: hope this helps

ANSWER FOR BRAINLIEST:
The mean of Tom’s scores on 5 tests was 77.4%. The scores on his first four tests were 88, 77, 70, and 72. What was Tom’s score on his fifth test?

Answers

Tom got 80 on the fifth test

Answer:

Tom got 80% on his fifth test

what is question a????

Answers

Answer:

0=3 1=5 3=9

Step-by-step explanation:

10 POINTS!!! NO LINKS!! I WILL REPORT BUT PLEASE SOMEONE HELP ME The table below shows the number of students in four schools with grade
point averages in various ranges. The grade point averages of the students in
which school represent a U-shaped distribution?

Answers

Answer:

School C.

Step-by-step explanation:

The answer is school C. A u-shaped distribution would have to have values that when plotted, make a "u". In this case, the first and last values have to be the highest, the second and fourth values have to be in the "middle" and the third value has to be at the bottom. This is the case for school C.

Answer:

B. School C

Step-by-step explanation:

Having a U-shaped distribution means that the school would have the least number in the middle value/values and the most at the ends.

School C exhibits this trend because it has the most on the outermost ranges (82 for between 1.5 and 2, and 78 for between 3.5 and 4.0), as well as the least number for the middle value (26 for 2.5-3.0

The numbers inbetween also follow the trend, as you can see if you read down the column of school C, the numbers decrease as you get to 2.5-3.0 and increase again to 4.0

Hope this helped!

What is the slope of the line through (–5,2) and (6,7) in the standard (x,y) coordinate plane?

9
9

5
5

-5
-5

5
11
5 over 11


5
11

Answers

Step-by-step explanation:

[tex]slope = \frac{\triangle \: y}{\triangle \: x} \\ = \frac{(7 - 2)}{(6 - ( - 5))} \\ = \frac{5}{11} \\ slope = (5 ,11)[/tex]

Help help help help help help help

Answers

Answer:

Negative

Positive

Negative

Positive

Step-by-step explanation:

AnswerNegative ,Positive, Negative, Positive

Step-by-step explanation:

Will mark brainliest

Answers

Answer: A) multiply the input by 6.

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

12÷2=6

36÷6=6

48÷8=6

54÷9=6

72÷12=6

so that means you have to multiply the input by 6.

Someone help me please-

Answers

Answer:

Rectangle 11.59 sqft

Rectangle 36 sqft

Polygon 47.59 sqft

Step-by-step explanation:

Help!! I’ll give brainliest!

Answers

Answer:

d

Step-by-step explanation:

stat edit but just use the formula y2-y1/x2-x1

(15 point) Which set of ordered pairs are solutions to the equation y = 10x?

Answers

Answer:

Blue, yellow and green.

Step-by-step explanation:

Graph points A(-1, -1), B(-1, 3) and C(3, 2) on the coordinate plane. What is the area of triangle ABC? A) 7 square units B) 8 square units C) 14 square units D) 16 square units

Answers

Answer:

8 square units is the answer

SOMEONE PLZ HELP ME

Answers

(0, infinity)

                                   I hope it helps

91 is 10% of what number?
would i get the answer of : 91 already rounded to the nearest hundredths??? these formulas are confusing me help (using proportions to solve percent)

Answers

91 is 10 percent of 910

0.1 divided by 7 pls answer I need this by tomorrow

Answers

Answer:

0.014286

Step-by-step explanation:

Last year Tyler used 60 feet of fencing to enclose a rectangular garden with an area of 200 ft². This year Tyler plans to use 120 feet of fencing to enclose a garden similar in shape. What will be the area of the garden?

Answers

Answer:

Area of new garden = 800 ft²

Step-by-step explanation:

Given:

Old fencing = Parameter of old garden = 60 ft

Area of old garden = 200 ft

Find:

Area of new garden if Parameter of new garden is 120 ft

Computation:

Assume;

Length of old garden = l

Width of old garden = b

So,

2[l + b] = 60

l + b = 30

l = 30 - b

Area of old garden = 200 ft

l x b = 200

So,

(30 - b)b = 200

b² - 30b + 200 = 0

b² - 20b - 10b + 200

b(b-20) - 10(b-20)

(b-20)(b-10)

So,

Width of old garden = 10 ft

Length of old garden = 20 ft

New parameter is double

So,

Width of new garden = 10 x 2 = 20 feet

Length of old garden = 20 x 2 = 40 feet

Area of new garden = l x b

Area of new garden = 20 x 40

Area of new garden = 800 ft²

HELP.
Which equation is represented by the graph below?
Y=In x-3
Y=In x-4
Y=e^x-3
Y=e^x-4

Answers

Not able to see the graph

1. A baseball coach graphs some data and finds the line of
best fit. The equation for the line of best fit is
y = 0.32x - 20.51, where x is the number of times at bat and
y is the number of hits.
How many hits should he expect from a player who is at bat
175 times?
A) 35 hits
B) 49 hits
C) 609 hits
D) 62 hits

Answers

Answer:

It's answer B, 49 hits. I got it right

its 49 hits because of the graph

7/9+5/9 as a fraction in simplest form

Answers

Step 1

Write all numerators above the common denominator
7+5/9

Step 2

Add the numbers
12/9

Step 3

Reduce the fraction with 3

4/3

Your answer should be 4/3

Or 1 1/3 , 1.3

1 3/9 is da answerrr

please help ive been stuck on this all day math help pls

Answers

Answer:

d ... or c

Step-by-step explanation:

bestieeee- please help


:)

Answers

Answer:

94 cups

Step-by-step explanation:

5 gals = 80 cups; 14 cups + 80 cups = 94 cups

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