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trapecia [35]
2 years ago
8

Explain why the expression 2y-y can be written as why

Mathematics
2 answers:
Paha777 [63]2 years ago
5 0

Answer:

y

Step-by-step explanation:

2y-y=y

Kryger [21]2 years ago
3 0

Answer: 2y-y can be written as y because 2y means you have 2 y’s and 2y’s minus 1 y is just 1 y

Step-by-step explanation:

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it cost $102.50 to repair a plasma tv. if you pay $15 for new parts and $25 per hour for labour, how much time did it take to re
Nana76 [90]

Subtract the part from the total:

102.50 - 15 = 87.50

Now divide the remainder by rate:

87.50 / 25 = 3.5 hours

7 0
3 years ago
Enter the value for x that makes the equation √x-7=-4
Agata [3.3K]

Answer:

Your answer is 9

Step-by-step explanation:

√9=3

3-7=-4

4 0
3 years ago
If AB = 21 centimeters, and BC = 28 centimeters, which does AC equal?
Bad White [126]

yup the answer would be c have a nice day :)

7 0
3 years ago
Read 2 more answers
en una balansa de platillos esta equilibrada, en uno de los platillos hay una piedra, una pesa de un noveno kilogramos y la otra
Komok [63]

Se escribe una equacion y se resolve.

Vamos a usar x para representar el peso de la piedra.

En en platillo que tiene la piedra, el peso total es: x + 1/9 + 2/3

En el otro platillo: 1/2 + 1/3

La balanza esta equilibrada por eso los pesos en los platillos son iguales.

x + 1/9 + 2/3 = 1/2 + 1/3

x + 2/18 + 12/18 = 9/18 + 6/18

x + 14/18 = 15/18

x = 1/18

Respuesta: La piedra pesa un octavo de kilogramo.

3 0
3 years ago
Read 2 more answers
Hilda draws a card from a deck of cards and it is a seven. The probability that it is the 7 of spades is Select one: O a. 1/3 O
Schach [20]

Answer:b

Step-by-step explanation:

Given

Hilda draws a card from a deck of cards and it is seven.

It is certain that card is 7 so there a 4 cards which can be 7

i.e. 7 of hearts,7 of spades,7 of club,7 of diamond

So probability that it is the 7 of spades is

\frac{1}{4}=0.25

8 0
3 years ago
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