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Assoli18 [71]
3 years ago
11

Sandy does babysitting in her spare time. She gets $100 advance pay and $10 per hour for babysitting. She wants to earn enough t

o buy a new Iphone for $450. How many hours she needs to babysit to earn enough money to buy the Iphone?
Mathematics
2 answers:
hoa [83]3 years ago
8 0

Answer: 35 hours

Step-by-step explanation: 450-100 because of the advanced pay, then you dived 350 by ten so you get 35 hours

Ilya [14]3 years ago
7 0

Answer:

Sandy needs to babysit for 35 hours to earn enough money to buy an Iphone.

Explanation:

Sandy gets $100 advance pay and $10 per hour for babysitting.

Let x denotes the number of hours then  

10x + 100

Sandy wants to buy an Iphone for $450

10x + 100 = 450

Solving the above equation

10x = 450 - 100

10x = 350

x = 350/10

x = 35 hours

Therefore, Sandy needs to babysit for 35 hours to earn enough money to buy an Iphone.

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I'd really appreciate it if anyone could help! :)
Ahat [919]

Answer:

The given table represents a function f(x) = y = 2x+3

The upper graph

Step-by-step explanation:

We will write the equation of the right line in the explicit (slope) form

y = ax+b

We will take two points from the given table

A(-1,1) and B(0,3) and insert their coordinates in the equation y=ax+b and get

A(-1,1)  => 1 = (-1)*a+b => -a+b=1

B(0,3) => 3=0*a+b => 3= 0+b => b=3

Now we will insert b=3 in the equation -a+b=1 and get

-a+3=1 =>  a=3-1 => a=2

Now we will insert a=2 and b=3 in the equation y=ax+b and get

equation of the function  

y = 2x+3 = f(x)  The upper graph.

Good luck!!!

5 0
3 years ago
What is the slope of the line ?(khan academy)
Ad libitum [116K]

Answer:

The slope of the line is 2.

Step-by-step explanation:

Slope of a line:

Suppose that we have two points. The slope of the line is given by the change in y divided by the change in x.

In this question:

Points (0,0) and (1,2)

Change in y: 2 - 0 = 2

Change in x: 1 - 0 = 1

Slope: m = \frac{2}{1} = 2

The slope of the line is 2.

7 0
4 years ago
which of the following sets of numbers will form a right triangle A. 12,13,14 B. 15,16,18 C. 5,6,9 D.5,12,13
tresset_1 [31]
Your answer would be D i’m sure
3 0
3 years ago
PLEASE HELP I GIVE A lot of points
Mrac [35]
(3X^3 + 9X^6)(-12x^6 - 18X^5 - 6X^4)
6 0
3 years ago
There are 130 people in a
Sonja [21]

Answer:

If 11 people use all three facilities, this means:

22 − 11 or 11 are using the gym and the pool but no the track,

29 − 11 or 18 are using the pool and the track but no the gym,

25 − 11 or 14 are using the gym and the track but no the pool.

How many people use the gym only?

130 − (14 + 11 + 11) = 94

How many people use the pool only?

62 − (18 + 11 + 11) = 22

How many people use the track only?

58 − (14 + 11 + 18) = 15

How many people go in for sports?

94 + 22 + 15 + 11 + 14 + 18 + 11 = 185

How many people use exactly one of the facilities?

94 + 22 + 15 = 131

What is the probability that the person uses exactly one of the facilities?

= 131/185 ≈ 0.7081

Step-by-step explanation:

its a bit confusing

Hope It Helps !!!!

7 0
2 years ago
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