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3 years ago

lewis read 35 pages of a novel in 25 minutes. at this rate, determine how many pages he can read in a hour

Mathematics

1 answer:

xenn [34]3 years ago

3 0

Answer:

84 pages per hour.

Step-by-step explanation:

We know that 60 minutes is an hour.

So, what you need to do is divide 60 by 25. (this equals 2.4)

then, all you have to do is multiply 2.4 with 35.

2.4×35=84

so, he'll read 84 pages in an hour.

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Please help I will give out brainliest

Nitella [24]

Answer:

i)x=0,x=1

ii)

$\frac{2}3} + \frac{\sqrt{40} }{6} \\\frac{2}3}-\frac{\sqrt{40} }{6}$

Step-by-step explanation:

so I did not use the graphs actually.

for the answer to question i), i wrote out the equation as given:

3x^2-3x+2=2

then, i subtracted the two from the right side of the equation to make the equation set equal to 0, and I got:

3x^2-3x+2-2=+2-2, which becomes 3x^2-3x=0

then, I used the quadratic method of taking out the greatest common factor, which in this case is 3x, and the equation becomes:

3x(x-1)=0

finally, for this equation, I set 3x=0 and x-1 =0 to get the solutions to this equation, as shown below

3x=0(divide both sides by 3 to get)x=0

x-1=0(add 1 to both sides to get)x=1

now for the second equation, I had no other choice but to use the quadratic formula to find the solutions.

so I set up the quadratic formula as shown:

$\frac{-(-4)+ or -\sqrt{(9-4)^2)-4(-2)(3)} }{2(3)}$

from there the equation gets simplified down to:

$\frac{4+ or -\sqrt{16-4(-6)} }{6}$

simplifying the formula even further gives us:

$\frac{4+ or -\sqrt{40} }{6}$

if we simplify the equation one last time, we get:

$\frac{2}{3} + or -\frac{\sqrt{40} }{6}$

therefore, the solutions to this equation are:

$\frac{2}{3} +\frac{\sqrt{40} }{6}\\ \frac{2}{3} - \frac{\sqrt{40} }{6}$

8 0

3 years ago

Joe had some candy to give to his four children. He first took seven pieces

GrogVix [38]

Answer:

Step-by-step explanation

There are 4 children. They each get 2 pieces. 2*4=8 Joe had 7 candies for himself. 8+7=15.

6 0

3 years ago

When a number is tripled,the results is -33

defon

Answer:

x = -11

Step-by-step explanation:

Considering tripled means multiplied by 3 because of tri, we know that we can use the equation 3x = -33.

To solve this we can divide both sides by 3:

3x = -33

x = -11

This gives our answer of -11.

4 0

3 years ago

Draw a function of dy/dx for the graphical below (image). Please help!

fenix001 [56]

Step-by-step explanation:

Remember that

$\frac{dy}{dx}$

is the gradient or slope function.

So we need to analyze the slope of each graph over given time.l and how it changes.

For the 1st graph, we have a linear function.

Remember the special properties for all linear functions:

The slope at any two points on the line is the same.

So this means our slope here must be constant.

And since our slope is negative, our dy/dx, function must be a constant function that is negative. So

The answer for the first graph is draw a horizontal line underneath the x axis.

For the 2nd graph, we have a slope that is decreasing, reaches 0 at the minimum, then increases even more.

We can draw a linear function that is increasing forever for our dy/dx.

For the 3rd graph, we are increasing , till we hit 0, then decrease until we hit 0, then forever increases.

Our dy/dx will be a parabola that passes through the x axis twice at two different points, facing upwards.

The first , second, and third graph is the dy/dx graphs shown respectively.

All these are examples of possible graphs. If you need more clarification, let me know

4 0

2 years ago

Jason’s bank account balance was $300. He paid of his bills. Now, his account balance is -$50. Which equation can be used to fin

Andreas93 [3]

Answer:

350=x

Step-by-step explanation:

how it got it was....

300=x-50 for there you would add 50 to both side and it would cancel the -50 and then you get 350=x

8 0

3 years ago

Read 2 more answers