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4 years ago

Make a real world problem with -3.5<-1.5

1 answer:

7 0

Stacy asked Jenny to borrow 3.50 dollars to buy some fruit, putting Stacy’s balance at -3.50. Ally asked John for 1.50 to buy a donut, putting Ally’s balance at -1.50. Both girls found 10 dollars each on the floor, who has more money, Ally or Stacy?

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Working at their respective constant rates, machine a makes 100 copies in 12 minutes and machine b makes 150 copies in 10 minute

Marina86 [1]

Since both machines maintain their rate, the number of copies made and the elapsed time are proportional. This means that we can write a proportion like

$\text{time}_1 : \text{copies in time}_1 = \text{time}_2 : \text{copies in time}_2$

We know the performance of machine a for 12 minutes, and we want those for 30 minutes: the proportion becomes

$12 : 100 = 30 : x \iff x = \dfrac{100\cdot 30}{12} = \dfrac{3000}{12} = 250$

Similarly, we have for machine b

$10 : 150 = 30 : x \iff x = \dfrac{150\cdot 30}{10} = \dfrac{4500}{10} = 450$

So, together, the two machines make

$250+450 = 700$

copies.

4 0

3 years ago

Read 2 more answers

At a school number of boy:number of girls is in the ratio 11:9

const2013 [10]

Answer:

1240 (I'm not so sure but per my calculation that is what i got)

Step-by-step explanation:

Boy : Girl

11 : 9

124 + x : x

11/9 = 124 + x / x

9(124 + x) = 11 x

1116 + 9x = 11x

1116 = 11x - 9x

1116 = 2x

x = 558

Thus, there are 558 girls in the school

Number of boys = 124 + x

= 124 + 558

= 682

Therefore, total number of students = 558 + 682 = 1240 students

5 0

3 years ago

When working problems on the calculator for trig functions, what are you supposed to have your calculator set to?

9966 [12]

Answer:

Degrees

Step-by-step explanation:

dont need one

4 0

4 years ago

Elijah earns $200 for 8 hours what is the unit rate per hour

Fiesta28 [93]

Answer:

$25 per hour

Step-by-step explanation:

You would divide 200 by 8 and you'll get 25

6 0

4 years ago

Helppppppp math !!!!!!!!!!

zhannawk [14.2K]

We conclude that the profit if the company produces 10 units is 1,040 dollars.

<h3></h3><h3>How to find the profit?</h3>

The profit is defined as the difference between the revenue and the costs.

In this case, we know that the revenue and costs are defined by:

R(x) = 200x - 5x^2

C(x) = 360 + 6x

Then the profit equation is:

P(x) = R(x) - C(x).

P(x) = 200x - 5x^2 - (360 + 6x)

P(x) = -5x^2 + 194x - 360

Now we want to find the profit when x = 10, then we will get:

p(10) = -5*10^2 + 194*10 - 360 = 1,040

We conclude that the profit if the company produces 10 units is 1,040 dollars.

If you want to learn more about profit:

brainly.com/question/19104371

#SPJ1

5 0

2 years ago

Make a real world problem with -3.5<-1.5​

Make a real world problem with -3.5<-1.5