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3 years ago

Math, yes I don't know if I got it right

Mathematics

2 answers:

olga nikolaevna [1]3 years ago

8 0

Answer:

4*(n)^2

Step-by-step explanation:

yaroslaw [1]3 years ago

5 0

Answer:

3 is the unknow number and the equation is 2+(4*x)=14

Step-by-step explanation:

2+(4*x)=14

2-2)+(4*x)=14 (-2) (subtract both sides)

4x=12

4x=12 (divide both sides)

4 4

x=3

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What is the domain of this function? y = 2x - 2

Furkat [3]

Answer:

The domain is (-∞,∞)

Step-by-step explanation:

Since there's no limit to this function, the values are infinity.

6 0

2 years ago

Problem Solving each problem by solving a simpler problem. solve There are two identical figures with all sides of equal length.

PolarNik [594]

Pentagon and each side is 2 units

3 0

2 years ago

Rick buys 3 CDs and 5 video games. The cost of one video game is $12.00 more than the cost of one CD. If Rick spends $164.00, wh

Dmitry [639]

Step-by-step explanation:

x = price per video game

y = price per CD

164 = 5x + 3y

and then we know

x = y + 12

now we can use this as substitute in the first equation :

164 = 5(y + 12) + 3y = 5y + 60 + 3y = 8y + 60

104 = 8y

y = $13

x = y + 12 = 13 + 12 = $25

so, each CD costs $13.

4 0

3 years ago

Mrs. Grubb bought some shirts for $4 each and some hats for $12 each. She bought 9 pieces of clothing for $100. Write a system o

Lana71 [14]

Answer:

Mrs. grub bought total number of shirts = 1

Mrs. grub bought total number of hats = 8

Step-by-step explanation:

Let Mrs. grub bought total number of shirts = x

Let Mrs. grub bought total number of hats = y

As given,

Price of 1 shirt = $4

Price of 1 hat = $12

⇒ Price of x shirts = $ 4x

Price of y hats = $ 12y

Given that,

Mrs. Grubb bought total piece of clothes = 9

⇒ x + y = 9 .......(1)

Also given,

She bought all clothing for $100

⇒ 4x + 12 y = 100 ........(2)

Divide equation (2) by 4 we get

x + 3y = 25 .......(3)

Now,

Subtract equation (1) from equation (3) , we get

x + 3y - ( x + y ) = 25 - 9

⇒ x + 3y - x - y = 16

⇒2y = 16

⇒y = $\frac{16}{2}$ = 8

⇒ y = 8

Put value of y in equation (3), we get

x + 3(8) = 25

⇒x + 24 = 25

⇒x = 25 - 24 = 1

⇒x = 1

∴ we get

Mrs. grub bought total number of shirts = x = 1

Mrs. grub bought total number of hats = y = 8

8 0

2 years ago

Sheila predicted that the Doja cat concert would have 310 people attend. Only 220 attended. Find the percent Error Show your wor

satela [25.4K]

Answer: 29%

Step-by-step explanation: 220 out of 310 attended. This mean the error percentage is 90/310. Dividing 90 by 310, we get the answer of around 29%.

Would appreciate brainly <3

4 0

2 years ago