All categories

2 years ago

URGENT! PLEASE ANSWER IF YOU ACTUALLY KNOW THE ANSWER!

Mathematics

1 answer:

Zepler [3.9K]2 years ago

4 0

Answer:

C. x + y = 4

Step-by-step explanation:

hard to explain sorry T-T and im really tired lolol

You might be interested in

A laptop is sold for $1274 after a discount of 9%.

chubhunter [2.5K]

Answer:

SP = 1274

Discount 9%

Selling price = MP (100 - d) / 100

1274 = MP (100 - 9) / 100

1) MP = 1400

i) After 5% discount = 1400 x 0.95 = 1330

After 4% discount = 1330 x 0.96 = 1276.80

3 0

3 years ago

Please choose the answer that describes the scientific notation for 5,098,000. A. 5.098 × 75777 B. 5.098 × 108 C. 5.098 × 107 D.

BigorU [14]

It is D, because 5.098 times 10 to the power of 6 does equal 5098000

4 0

3 years ago

Part of the proceeds from a garage sale was $470 worth of $10 and $20 bills. If there were 14 more $10 bills than $20 bills, fin

Brums [2.3K]

There are 25 $10 bills and 11 $20 bills.

Step-by-step explanation:

Given,

Worth of proceeds from garage = $470

Let,

x be the number of $10 bills

y be the number of $20 bills.

According to given situation;

10x+20y=470 Eqn 1

x = y+14 Eqn 2

Putting value of x from Eqn 2 in Eqn 1

$10(y+14)+20y=470\\10y+140+20y=470\\30y=470-140\\30y=330$

Dividing both sides by 30

$\frac{30y}{30}=\frac{330}{30}\\y=11$

Putting y=11 in Eqn 2

$x=11+14\\x=25$

There are 25 $10 bills and 11 $20 bills.

Keywords: linear equation, substitution method

Learn more about linear equations at:

#LearnwithBrainly

5 0

3 years ago

What is the coefficient of x^3y^2 in the expansion of (2x+y)^5

Virty [35]

D. 80

If you expand the entirety of the polynomial, you get the following:

32x^5+80x^4y+80x^3y^2+40x^2y^3+10xy^4+y^5

3 0

3 years ago

Read 2 more answers

8. There are 3 people who work full-time and are to work together on a project, but their total time on the project is to be equ

Mama L [17]

Answer:

1/6 of the third workers time

Step-by-step explanation:

one of the people is budgeted for 1 /2 of his time to the project and a second person for 1/3 of her time

Let x be the third workers time

Let the completed job time = 1

Time taken for 3 workers to complete the job = 1

$\frac{1}{2}+ \frac{1}{3} + x= 1$

now we solve for x

LCD = 2*3 = 6

We multiply the whole equation by 6

$\frac{1}{2}*6+ \frac{1}{3}*6 + x*6= *6$

3 + 2 +6x = 6

5 + 6x = 6

subtract 5 on both sides

6x = 1

divide both sides by 6

$x= \frac{1}{6}$

5 0

3 years ago