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agasfer [191]
2 years ago
5

Tina babysits children in her neighborhood. When Tina is asked her rate, she tells her neighbors that she charges $15 for the fi

rst hour and $8 for each hour after. If Tina's neighbor asks Tina to babysits for 4 hours, how much will Tina earn? Write an equation to model and solve the problem. Write the answer as an ordered pair and explain the meaning of the ordered pair.
Mathematics
1 answer:
OLga [1]2 years ago
7 0

The amount charged is an illustration of a linear equation.

Tina charges $39 for 4 hours

The given parameters are:

Base = 15 --- amount charged for the first hour

Rate = 8 --- amount charged for the extra hours

If Tina babysits for 4 hours, it means that:

  • <em>She will charge $15 for the first hour</em>
  • <em>$8 for the extra 3 hours</em>

<em />

So, the total charges is:

Total = 15 + 3 \times 8

Total = 15 + 24

Total = 39

The ordered pair is (4,39)

It means that:

She charges $39 for 4 hours

Read more about linear functions at:

brainly.com/question/20286983

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Ilia_Sergeevich [38]
First you can apply the a²-b² = (a+b)(a-b) theorem, you'll get:

(p²)² - 9² = (p²+9)(p²-9), but that's not all, you can apply it again on the last factor:

(p²+9)(p²-3²) = (p²+9)(p+3)(p-3)

The first factor cannot be simplified like that, so that's the furthest factorization. So answer (3) is the right one.
5 0
3 years ago
Read 2 more answers
20 points. What is the answer to b) Please help! : )
V125BC [204]

Answer: I only see a black screen and some red lines

Step-by-step explanation: What is the question?

6 0
2 years ago
What is an expression for the area of the shaded region? Simplify your answer.
Reptile [31]

Answer:

if it is put into a equation this would be it

2(x^2+6x+9) - (1.57)(x^2+6x+9)

Step-by-step explanation:

(x+3)(2x+6) - 1/2(3.14)(x+3)(x+3)

(2x^2+6x+6x+18) - 1/2(3.14)(x^2+3x+3x+9)

(2x^2+12x+18) - 1/2(3.14)(x^2+6x+9)

2(x^2+6x+9) - (1.57)(x^2+6x+9)

2(x^2+6x+9) is the rectangle at the bottom

(1.57)(x^2+6x+9) is the semicircle that is taking out of the shaded area

5 0
3 years ago
An apple grower finds that if he plants 80 trees per acre, each tree will yield 26 bushels of fruit. He estimates that for each
hammer [34]

Answer: The maximum revenue is $7482 . To get a maximum yield , The number of trees per acre needed is 43.

Step-by-step explanation:

Solution:

Let x represent the extra tree

So for an additional tree the yield of each tree will decrease by 4 bushels.

(80 +x)(26-4x) by expanding

2080 - 320x +26x -4x^2

Using x= -b/2a

X= 294/ -8

X= - 36.75

So apparently he currently has far too many trees per acre. To get the maximum yield , she needs to reduce the number of trees per acre by 36.75

So the number of trees per acre for maximum yield is

80-36.75

=43.25

Approximately x=43

So by reducing he get extra bushel in the tune of 174.

Total revenue= 174 ×43× 1$

=$7482

3 0
3 years ago
From a well shuffled deck of 52 cards, the probability of NOT drawings a red-face card is ______.
Gnom [1K]

Answer:

Option "d" might be 11/13

Step-by-step explanation:

Red face cards=8. ( heart and Diamond)

Remove this 8 cards from 52 cards which gives

=>44

Toal cards =52

PROBABILITY = 44/52=>11/13

5 0
3 years ago
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