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zhuklara [117]
3 years ago
12

First right=brainliest:)))

Mathematics
1 answer:
Sophie [7]3 years ago
3 0

Answer:

-4,7

Step-by-step explanation:

add both to get y=7

then sub y in 2 to get 8x+42=10

8x=-32

x=-4

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Serjik [45]
I wrote ones but I hope it’s right and helps

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3 years ago
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Can someone simplify these expressions (c)
creativ13 [48]

Answer:

c)

(10x+5)-(-23-2x)=

10x+5+23+2x

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8 0
3 years ago
Maria bought 5 tickets for $20 each. Each ticket had a $2 fee. Write an expression that shows how much Maria paid for the ticket
Tanya [424]

The algebraic expression which shows how much Maria paid for the tickets including the additional fee is y = 20(5) + 2(5)

<h3>Algebraic expression to show how much Maria paid for the tickets</h3><h3 />
  • Number of tickets Maria bought = 5
  • Cost of each tickets = $20
  • Additional fee per tickets = $2

let

  • Total amount Maria paid for the tickets = y

Total amount Maria paid for the tickets = Cost of each tickets(Number of tickets Maria bought) + Additional fee per tickets(Number of tickets Maria bought)

y = 20(5) + 2(5)

y = 100 + 10

y = $110

Therefore, the algebraic expression which shows how much Maria paid for the tickets including the additional fee is y = 20(5) + 2(5)

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7 0
1 year ago
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pentagon [3]

Answer:

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Step-by-step explanation:

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3 years ago
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1.
Evgen [1.6K]

Answer:

Null hypothesis H_0; \mu=5

Alternative hypothesis H_a; \mu\neq 5

Step-by-step explanation:

Consider the provided information.

The shower by an adult is 5 minutes.

The mean amount of time that college students spend in the shower is significantly different from 5 minutes. In a sample of 15 students, he found the average time was 4.29 minutes and the standard deviation was 0.75 minutes.

We need to determine the appropriate null and alternative hypotheses.

A null hypothesis is there is no statistical significance between the two variables.

An alternative hypothesis is there is a statistically significant relationship between two variables.

Therefore the required null and alternative hypothesis are:

Null hypothesis H_0; \mu=5

Alternative hypothesis H_a; \mu\neq 5

3 0
2 years ago
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