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3 years ago

Allison wants to buy a game that costs $120. She has saved $30 for the game. She earns $5 per hour babysitting.

Mathematics

2 answers:

sergey [27]3 years ago

7 0

Answer:

Step-by-step explanation:

Cost of game = $120

Current savings = $30

Rate for babysitting (per hour) = $5/hour

So, required equation is :-

120 = 5h + 30

5h = 90

h = 18

She must make $90 by babysitting for 18 more hours.

Amiraneli [1.4K]3 years ago

6 0

Answer:

What is the question? How many hours does she need to babysit??

18 hours

Step-by-step explanation:

There wasn't a question so um yeah...

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A company has developed a training procedure to improve scores on the SAT. Following the training, 100 high school students take

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Answer:

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3 years ago

50 students were asked what they did last night. 16 said they read a book, 41 said they watched TV, 7 said they did neither, how

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Answer:

14 students

Step-by-step explanation:

Given

Let:

$b \to$ read a book

$t \to$ watched TV

So, we have:

$n = 50$ -- total

$b = 16$

$t = 41$

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Required

Students that did both (x)

This is calculated using:

$Total = Books\ only + TV\ only + Both + None$

So, we have:

$n = (b - x) + (t - x) + x + none$

This gives:

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Open brackets

$50 = 16 - x + 41 - x + x + 7$

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