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2 years ago

Help im not good at math lol

Mathematics

2 answers:

LuckyWell [14K]2 years ago

8 0

Last one
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Len [333]2 years ago

5 0

Answer: the last one on the right

Step-by-step explanation:

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Elliot has a total of 26 books. he has 12 more fiction books than nonfiction books. let x represent the number of fiction books

KIM [24]

Answer:

X+Y=26

X-Y=12

Step-by-step explanation:

fiction books= X

non fiction books= Y

then,

fiction books= X

non fiction books = X-12

but Y= X - 12

from. the statement,

X+Y = 26

X-Y=12

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2 years ago

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Gnoma [55]

Answer:

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3 years ago

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Mai and Tyler work on the equation 2/5 b + 1 = -11 together. Mai’s solution is b= -25 and Tyler’s is b = -28 Here is their work.

alisha [4.7K]

Answer:

<em>I disagree with both solutions. The value of b that will make the expression correct is -30</em>

Step-by-step explanation:

Given the equation solved my Mai and Tyler expressed as:

2/5 b + 1 = -11

We are to check the veracity of the solutions;

2/5 b + 1 = -11

Subtract 1 from both sides of the expression

2/5 b + 1 -1 = -11-1

2/5 b = -12

Cross multiply

2b = -12 * 5

2b = -60

Divide both sides by 2

2b/2 = -60/2

b = -30

<em>Since the solution b = -25 and -28 does not tally with the gotten solution, I disagree with the both solutions</em>

6 0

3 years ago

I'll give brainliest to whoever answers first and is correct!!

Nina [5.8K]

Answer:

(a) $y=8x+5$

(b) 7 hours.

Step-by-step explanation:

(a) Let x be the number of hours and y is the total cost.

We have been given that Beatrice and her friends charge $8 per hour of babysitting, so the charges for x hours of babysitting will be 8x.

As they also charge a mandatory $5 per day fee for each child for snacks, so the total charges for babysit each day will be charges for x hours of babysitting plus mandatory charge.

We can represent this information in an equation as:

$y=8x+5$

Therefore, the equation $y=8x+5$ represents the total cost of using Beatrice’s babysitting service each day.

(b) To find the number of hours Beatrice babysit the daughter, we will substitute y = 61 in our equation and solve for x.

$61=8x+5$

Let us subtract 5 from both sides of our equation.

$61-5=8x+5-5$

$56=8x$

Let us divide both sides of our equation by 8.

$\frac{56}{8}=\frac{8x}{8}$

$7=x$

Therefore, Beatrice babysit 7 hours the daughter.

Expression for part c is missing.

6 0

3 years ago