Which system of equations has one solution?

Answers

Answer 1

Answer:

2y = x + 7

3x + 7y = 240

Step-by-step explanation:

Please mark as Brainliest!!!

Related Questions

On Thursday, a local hamburger shop sold a combined total of 348 hamburgers and cheeseburgers. The number of cheeseburgers sold was two times the number of hamburgers sold. How many hamburgers were sold on Thursday?

Answers

Answer:

116 hamburgers

Step-by-step explanation:

divide 348 by 3. since cheese burgers were sold two times more than hamburgers, the answer would be 116.

Find the quotient. 7,398 ÷ 6 *

Answers

Answer:1,230.5

Reason: just learn how to divide
7398/6
= 1233

Checking answer:
1233 times 6
= 7398

Factor: 42c²+24c
pls help

Answers

Answer:

6c out of 42c^2 + 24c

6c(7c+4)

Step-by-step explanation:

[tex]x=10[/tex]
[tex]x^2 − 2(x+5)[/tex]

Answers

Step-by-step explanation:

If x=10

[tex]\tt{ x^2-2(x+5) }[/tex] ⠀

[tex]\tt{ (10)^2-2×(10+5) }[/tex] ⠀

[tex]\tt{100-2×15 }[/tex] ⠀

[tex]\tt{ 100-30 }[/tex] ⠀

[tex]\bold{ 70 }[/tex] ⠀

If two angles are supplementary then they add to 180...Whats the converse inverse and contrapositive

Answers

Answer:

Converse: If two angles are supplementary then they add up to 180 degrees.

Inverse: If two angles are not supplementary then they do not add up to 180 degrees.

Contrapositive: If angles do not add up to 180 degrees, then the two angles are not supplementary.

Step-by-step explanation:

In logic the converse of an implication is obtained by reversing its two constituent statements. That is, for  P → Q, then the converse is Q → P.

The inverse of a conditional statement involves the negation of both the hypothesis and conclusion. That is, for p → q, the Inverse is  ~p → ~q note that ~ stands for NOT in the negation of the statement.

For a  contrapositive of any conditional statement, we interchange the hypothesis and the conclusion of the inverse statement as shown in statement III in the answer above.

Determine the value of x.
4x + 20% 2x + 60%
(A) X= 10°
(B) x = 20°
(C) X= 30°
(D) x = 40°

Answers

I think is (B) x= 2…

Wang Yong owes the bank \$8500$8500dollar sign, 8500. To repay the debt, he paid a fixed amount back to the bank each month. After 121212 months, his remaining debt was \$6460$6460dollar sign, 6460.

Answers

Complete question :

Wang Yong owes the bank $8500. To repay the debt, he paid a fixed amount back to the bank each month. After 12 months, his remaining debt was $6460. How much did Wang Yong pay each month?

Answer:

$170

Step-by-step explanation:

Given that:

Amount owed = $8500

Fixed amount replayed per month :

Amount left after 12 months = $6460

Amount paid per month :

Total amount paid over 12 months :

$(8500 - 6460) = $2040

Amount paid per month :

$2040 / 12

= $170

Answer:

Part A. Yong payed $170 dollars every month.

Part B. He took 50 months to pay his debt.

Step-by-step explanation:

Look at attachment:

Hope this helps! :)

Hisako sells dolls at her doll store. If she sells a doll for $55, and there is a 7% sales tax, what is the total cost of the doll? Round your answer to the nearest cent.

A. $3.85

B. $51.15

C. $62.90

D. $58.85

Answers

D is the correct answer
D. 58.85 is the correct answer

multiply : (8)(-5)

honestly, if this question was easy to answer ima cry-

Answers

Answer:

-40

Step-by-step explanation:

please do not cry

-40 DONT cry ms gurl

Plz plz help me out pllllllzzz it’s all most due

Answers

Answer:

1. D. 150%

2. C. 37.19

Step-by-step explanation:

hope this helps!

The first question would be D, 150. I don’t know what the second question is though.

A bird in the sky flies down.
It starts 700 feet above the ground.
Each second it gets 15 feet lower.

Answers

Answer:

Step-by-step explanation:

What is the rest of the equation? I will edit/fix the answer after you finish the equation.

Solve (4x - 5) (x + 3) = 0.
Please need help

Answers

Answer:

x= 5,-3

Step-by-step explanation:

(4x - 5) (x + 3) = 0.

[tex]4 {x}^{2} + 3x - 5x - 15 = 0 \\ 4{x}^{2} - 2x - 15 = 0 [/tex]

[tex]the \: roots \: are \:[/tex]

5 and -3

Solve simultaneously
3x + 4y = 2 and 4x - y = 9

Answers

Answer:

x=2

y= -1

Step-by-step explanation:

a dragster accelerates from rest to 135 mph in 9 seconds. calculate the dragsters rate of acceleration​

Answers

The answer: the amount of the dragsters rate of acceleration is 15

The table shows the colors of Ms. Beal’s pens and how many of each she has.
What is the ratio of black to blue pens?

Answers

Answer:

2:1

Step-by-step explanation:

12 divided by 6 = 2

6 divided by 6 = 1

2:1

what is 4 increased by the product of 5 and 3

Answers

the answer is 4+(5x3)

Answer:

12

Step-by-step explanation:

5+3=8

8+4=12

Combine this Polynomial:
(19x^2+12x+12)+(7x^2+10x+13)

A)26x^4 + 22x^2 + 25
B)26x^2 + 22x + 25
C)73x
D)73x^6

Answers

Answer: C) 26^2 + 22 + 25

Step-by-step explanation:

Eliminate the parentheses

Add the numbers

19^2+12+25+7^2+10

Combine Like Terms

26^2+12+25+10

Answer:

26^2+22+25

your answer is C) 73x

Find the volume of the rectangular prism.
The volume of the rectangular prism is

centimeters cubed.fill in the blank

Answers

I think it 9/512 cm sq

Solve for a. a +(-5) = -12 O a = -17 O a = -7 O a = 7 a = 17​

Answers

Answer:

a = -7

Step-by-step explanation:

-7 + (-5)=-12

Answer:

-7

Step-by-step explanation:

Hope this helps :)

Look at de pic pls :)

Answers

The correct answer is C
yes it’s C it’s the only answer that makes sense

help me please i’m failing lol

Answers

16) k=176 hope you get to a point were your not failing

16) K= 176
18) X= 12
20) M= - 52
22) X = -13
24) A= -90
Hope that helps :)

write th fraction 12/15 in its simpliest form​

Answers

Answer:

4/5

Step-by-step explanation:

Common factor is 3 so,

if you divide 12/15 by 3, then it will equal to 4/5

Answer:

4/5

Step-by-step explanation:

3 because thats what they have in common so devide both by 3 to get the answer

10. Un átomo de potasio tiene 19 protones en el núcleo y 20 neutrones. A partir de estos datos, a) ¿Cuál será su número atómico? 7YGº

Answers

Answer:

translate this to English and I'll help!(:

Then,fill in the blank to add these numbers below

Answers

Answer:

the 1st number line and 29

Step-by-step explanation:

The second one starts at 21 and takes away which gives 13. which isnt the answer. When adding numbers, you go forward

Help meeeeeeeeeeplease

Answers

20111193857248668228

Answer:

The answer is 8/5. Hope you do great!:)

Step-by-step explanation:

Mr. Roboto has bought a can of paint can you use 3/8 of it to paint a bookshelf in use 1/4 of its pink leg and he used some of it to paint a birdhouse and he has one-eighth of it left how much paint do you use for the birdhouse?

Answers

Answer: Fraction of paint used for bird  house = [tex]\dfrac14[/tex]

Step-by-step explanation:

Let quantity of the total paint be 1.

Given:  Fraction of paint to book shelf = [tex]\dfrac38[/tex]

Fraction of Paint to leg = [tex]\dfrac14[/tex]

Fraction of Paint left = [tex]\dfrac18[/tex]

Let x= fraction of paint used for bird house.

Total paint = [tex]\dfrac38 +\dfrac 14+\dfrac18+x=1[/tex]

[tex]\Rightarrow\ \dfrac{3+2+1}{8}+x=1\\\\\Rightarrow\ \dfrac{6}{8}+x=1\\\\\Rightarrow\ x=1-\dfrac68\\\\\Rightarrow\ x=\dfrac{2}{8}=\dfrac14[/tex]

So, Fraction of paint used for bird  house = [tex]\dfrac14[/tex]

20 points ! Help please

Answers

Answer:

The answer is true.

7/8 - 1/4=
Explain how you got your answer

Answers

Answer:5/8

Step-by-step explanation: transform the expression 8 so 7-2/8 =5/8

Answer:

5/8.

Step-by-step explanation:

What is the boundedness

Answers

Answer:

Boundedness requires that there is only a bounded number of different kinds of parts

Step-by-step explanation:

which if the following are characteristics of the graph of the quadratic parent function

Answers

Answer:

A, C, D

Step-by-step explanation:

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