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Hey! I really need help figuring this problem out. I have a test in a few hours and I don't know how to find the answer to questions like these, I would really appreciate it if you show your work so I can figure out how to solve these myself. Thank you!

BRAINLIEST+50 POINTSHey! I Really Need Help Figuring This Problem Out. I Have A Test In A Few Hours And

Answers

Answer 1

Answer:

(2, -1)

Step-by-step explanation:

Given system:

-3x - 2y = -49x + 3y = 15

Solving by elimination

Multiply the first equation by 3 and add up equations, then solve for y:

3(-3x) - 3(2y) + 9x + 3y = 3(-4) + 15-9x - 6y + 9x + 3y = -12 + 15-3y = 3y = 3/(-3)y = -1

Find the value of x:

-3x - 2(-1) = -4-3x + 2 = -4-3x = - 4 - 2-3x = -6x = -6/(-3)x = 2

The answer is: (2, -1)


Related Questions

Please help! 58 points for both questions and explain how to get the answer!

Answers

Answer:

number 2 is c

number 1 is d?

Step-by-step explanation:

because if it a has been 1 minute(m=1) the 35(1)=w --> w=35 for for one minute there is 35  words 35m=w

for 1 i cannot see, but if d says 3/4 and x=3/4 then d is the answer

Answer:

(For your second question.):

35w=m

Step-by-step explanation:

Why?

It states in the problem itself that miles types 35 words per minute.

"w" stands for words

'm' stands for minutes.

The constant rate relies on the clearest data after all. The equation itself is enough!

Remember: 1 min = 60 seconds.

The rectangle below has an area of 49-x^249−x 2 49, minus, x, squared square meters and a width of 7+x7+x7, plus, x meters. What expression represents the length of the rectangle?

Answers

Answer:

7-x meters

Step-by-step explanation:

Answer: (7-x)

Step-by-step explanation: khan

SOMEONE PLEASE HELP ME!!!!!! I RLLY NEED THE ANSWER TO THIS!!!


The Pythagorean Theorem states that a² + b² = c?, where a and b are legs of a
right triangle and c is the hypotenuse. Are you able to simplify the Pythagorean
Theorem further to say that a + b = c? Explain.

Answers

Answer:

yes, you can square root to entire equation to get to a+b=c, the square root cancels out the 2

Step-by-step explanation:

Harry receives a package for his birthday the package weighs 50 Oz what is the weight of the package in pounds and ounces?

Answers

Answer:

3 pounds 2 oz

Step-by-step explanation:

1 pound = 16 oz

x pounds = 50 oz

Cross Multiply

16x = 50 oz             Divide by 16

x = 50 / 16

x = 3 pounds with 2 oz left over.

Your calculator will give you 3.125

0.125 = 1/ 8

1/8 * 16 = 2

estimate a 15% tip for a $60 bill​

Answers

Answer:

the answer would be 15/100= .15 *60= 9 so the tip would be 9$

Answer the tax would be *.00 dollars if you estimate it

Step-by-step explanation:can I get marked brainlist

What’s 1/4 divided by 7 in lowest terms PLEASE HURRY AND ANSWER

Answers

Hmm I think it’s 1/28 and you can’t simplify it more then that hope this helped :)

I need help please. Also check out my other question

Answers

Answer:

8 Km.

Explanation:

I'm going to turn the fractions into decimals

2 ½: 2.5

3 ⅕: 3.2

Formula for the area of a parallelogram: A = b(h)

Base: 3.2

Height: 2.5

3.2 · 2.5 = 8

The area of the parallelogram is 8 Km.

What is included in a total monthly mortgage payment?
O A. Principal, investment, taxes, and insurance
B. Payment, interest, taxes, and insurance
O C. Principal, interest, taxes, and insurance
D. Principal, interest, title, and insurance

Answers

your answer is C. principal interest taxes and insurance

Total monthly mortgage payment includes option C. Principal, interest, taxes, and insurance.

What is Mortgage Payment?

Mortgage is defined as a type of loan which are typically used to finance or maintain a property which can be land or other kinds of rentals.

They are referred to as secured loans.

Total monthly mortgage payment consist of mainly four components.

They are :

Principal InterestTaxes Insurance

The main components are principal and interest.

Principal amount is the amount that you borrowed for your purpose.

Interest payment is the amount that the lender charges which varies.

Hence the option is C.

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Help me please I will give you brainlist!

Answers

The answer is A I believe hope I helped

Answer:

2x

Step-by-step explanation:

2x has a value of 4 because x = 0 and y = 4 so the answer would be 2x

Can somebody plz help answer these correclty (only if done this before) like show the answer /how I’m suppose to write it thx :3

WILL MARK BRAINLIEST WHOEVER ANSWERS THESE FIRST :DDD!!!

Answers

Answer:

1) 3x = 39  ; x = 39/3 = 13

2) x + 7 = 15 ; x = 15-7 = 8

3) 6x = 18  ; x = 18/6 = 3

4) x-4 = 11  ; x = 11 + 4 = 15

5) 1/7 x = 3   ;  x = 3 *7 = 21

6) 13+x = 21  ;  x = 21 - 13 = 8

I hope im right!!!

Are the following triangles similar or not similar?

Answers

No, 47 equals 47, 66 does not equal 67, hence not similar

The number of students in a chess club decreased from 27 to 11. What is
the percent decrease? Round your answer to the nearest percent.
Your answer

Answers

Answer:

59.26.

Step-by-step explanation:

I think!

Pls help for my math class!

Answers

Answer:

i think it is b but i am not 100%

sorry if i am wrong

Step-by-step explanation:

My teacher told me to do this question I will give brainliest

If you were to teach a friend how to solve the following two-step equation : 3x + 18 = 48, what would you say, step by step? You may work it out first before you start your writing.

Answers

Answer:

Step-by-step explanation:

3x + 18 = 48

Bringing like terms on one side

3x = 48 - 18

3x = 30

x = 30/10

x = 3

Answer:

x = 10

Step-by-step explanation:

Subtract 18 from both sides.

3x=48-18

Simplify  48-18 to 30.

3x=30

Divide both sides by 3.

x= 30/3

Simplify  30/3\ to 10

x=10

x=10

how would you factor 12b^4+3b^2​

Answers

Answer:

3b²(4b²+1)

Step-by-step explanation:

You can factor out a 3b²

3b²(4b²+1)

Answer:

Hey friend, need some help if you factor 3b^2 out of 12b^4+3b^2, in other words, 3b^2 (4b^2 + 1)

Show your work:

3b^2 (3b^2 / 12b^4) + (3b^2 / 3b^2)

PLZ give 5 stars, heart, and brainlyest

Which number below is a perfect square? 15 19 16 20 ​

Answers

Answer:

16

Step-by-step explanation:

4x4=16

Answer:

16

Step-by-step explanation:

4 x 4=16


question “If y =5, what is the value of the following expression

7+2y²

Answers

Answer:

57

Step-by-step explanation:

Hey there!

To find the solution, plug in 5 for y. When you do this you get, 7+2(5)². Square the 5 to get 25. And then you att 7+2(25). 25 x 2 is 50. 50 +7 is 57.

Hope this helps :)

Answer : 57

Step-by-step-explanation: I answering this for the points : )

A student has heard that spinning pennies on a table, rather than flipping them in the air, results in tails side up 65% of the time. If this is true, what is the probability that a student who spins 4 pennies will have them all land tails side up? 0.0150 0.1785 0.8215 0.9850

Answers

so I believe it is C 0.8215

The probability is 0.1785

What is probability?

The study of how likely certain events are to occur is known as probability. In its simplest form, it is concerned with the fall of a game's cards or the roll of a dice. However, probability is also essential to life and science as a whole. Probability is used, for example, in weather forecasting and figuring out how much your insurance premiums will cost.

Given probability of tail by spinning a coin is 65% = 0.65

p(t) = 0.65 and p(h) = 0.35

where h= head and t= tail

coin spins 4 time

p(t) for first time = 0.65

p(t) for second time = 0.65 x 0.65 =0.4225  

p(t) for third time = 0.65 x0.65 x 0.65 = 0.274

p(t) for fourth time = 0.65 x 0.65 x0.65 x 0.65 = 0.178

Hence probability that a student who spins 4 pennies will have them all land tails is 0.178

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write 3^n/9^(n-1) as a power of 3

Answers

Answer:

[tex]\frac{3^{n} }{3^{2(n-1)} }[/tex]

Step-by-step explanation:

3²⁻ⁿ is the simplification of  3ⁿ/9ⁿ⁻¹ in powers of 3.

What is Expression?

An expression is combination of variables, numbers and operators.

The given expression is  3ⁿ/9ⁿ⁻¹

three power n divided by nine power n minus one.

To express to the power of 2, we have few properties of exponentials.

aˣ/aⁿ=aˣ⁻ⁿ

aˣ.aⁿ=aˣ⁺ⁿ

The given expression is

3ⁿ/9ⁿ⁻¹

3ⁿ/(3²)ⁿ⁻¹

3ⁿ/3²ⁿ⁻²

3ⁿ.3⁻²ⁿ⁺²

When bases are same then we will add the powers

3ⁿ⁻²ⁿ⁺²

3²⁻ⁿ

Hence 3²⁻ⁿ is the simplification of  3ⁿ/9ⁿ⁻¹ in powers of 3.

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What is the product ([tex](7\sqrt{8} +3\sqrt{12} )(7\sqrt{8} -3\sqrt{12})[/tex]?

Answers

the product should be 284.

which point 1 on the number line?
0
1/6
A
B
C
D
Choose 1 answer
A
B
C
D

Answers

Answer:

kind of confusing to read

Step-by-step explanation:

Find the measure of the indicated angle.
a. 44°
b. 150°
c. 40°
d. 37°
dont say u cant see the pic, if u cant dont answer simple, all fake answers will be reported

Answers

Step-by-step explanation:

Opt . C) 40⁰ is the answer .....

11 1 1 point Find the circumference of the circle. Do NOT round your answer. 16.8 m​

Answers

Step-by-step explanation:

22/7*1111=3491

this is the ams

Can somebody help me please

Answers

Answer:

I believe it’s 65

Step-by-step explanation:

Not fully sure

what is 70% of 53? PLZZZ HELP ASAP

Answers

53 times 70%
53 times 0.7 is 37.1

A jar of coins has 8 pennies, 5 nickels, 1 dime, and 7 quarters. What is the probability of drawng a quarter, replacing it, and drawing another quarter.

Answers

Given:

A jar of coins has 8 pennies, 5 nickels, 1 dime, and 7 quarters.

To find:

The probability of drawing a quarter, replacing it, and drawing another quarter.

Solution:

A jar of coins has 8 pennies, 5 nickels, 1 dime, and 7 quarters.

Total number of coins = 8+5+1+7 = 21

Probability of getting a quarter is

[tex]P(Quarter)=\dfrac{\text{Number of quarters}}{\text{Total number of coins}}[/tex]

[tex]P(Quarter)=\dfrac{7}{21}[/tex]

[tex]P(Quarter)=\dfrac{1}{3}[/tex]

After drawing a quarter, we replaced it. So, the probability of getting quarter in second draw is the same and first one, .i.e., [tex]P(Quarter)=\dfrac{1}{3}[/tex].

The probability of drawing a quarter, replacing it, and drawing another quarter is

[tex]P=\dfrac{1}{3}\times \dfrac{1}{3}[/tex]

[tex]P=\dfrac{1}{9}[/tex]

Therefore, the required probability is [tex]\dfrac{1}{9}[/tex].

I need help ASAP , I don’t understand this

Answers

Answer:

can't see, the pic is too blurry

An author receives $0.75 for each hardcover book or paperback book that is sold. There were x hardcover books and 42,000 paperback books sold of her most recent book. The author received a total of $60,000 for the book sales. The equation below can be used to determine the number of hardcover books that were sold. 0.75(x + 42,000) = 60,000. How many hardcover books were sold?

Answers

0.75(42,000) = 31,500
0.75x + 31,500 = 60,000
Subtract both sides by 31,500
0.75x = 28500
Divide both sides by 0.75
Answer = 38,000

Find each missing angle
Please

Answers

Answer:

m<1=61

m<2=40

m<3=60

m<4=80

m<5=100

Step-by-step explanation:

180/3=60

180/9=20

20x2=40

20x4=80

20x3=60

59+60=119

180-119=61

180-80=100

i will give brainliest to whoever answers correctly. this is due in 10 minutes so i would appreciate if you could do it

Answers

Answer:

choice 1) 7

Step-by-step explanation:

6 + (9-1)^2 / 4 x (1/2)^4

6 + 64/4(1/16)

6+16/16

6+1 = 7

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