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Lunna [17]
3 years ago
9

An english book is comprised of two sections, literature and grammar, in a ratio of 3:2. How much of each type of content will b

e needed to make a book of 150 pages
Mathematics
1 answer:
Finger [1]3 years ago
7 0

Since your total for the English book is 5, you make a ratio of

5:150

to make 5 equal 150, you multiply by 30. So if you multiply 3 by 30, you get 90, and 2 by 30 you get 60

60+90=150

new ratio-  90:60

or 90 pages of literature and 60 pages of grammar

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Jennifer has a square bedroom. The area of her room is 144 ft2. What is the length of one side of Jennifer’s room?
WITCHER [35]

Answer:

<em>B.) 12 ft</em>

Step-by-step explanation:

A square's sides are all the same: meaning, every side MUST be the same length. Then, all we have to do is find the square root of 144, which is 12.

To check this, we need to multiply the length times the height. If it equals 144, it is correct.

12 x 12 = 144

Hope I explained this well enough! If this seems confusing, or if you haven't learned square roots yet, you can always just try multiplying down the list of available choices to see what equals 144 c:

( 10 x 10 = 100, 12 x 12 = 144, 18 x 18 = 324, 36 x 36 = 936)

7 0
3 years ago
This is a little big easy
Phantasy [73]

Answer:

B.) b+79

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
Words can you make using the letters:<br> GEOMETRY
Rzqust [24]

Answer:

TRY

MET

GET

YET

METRO

MORE

This is all i got :)

Step-by-step explanation:

8 0
3 years ago
Someone please help me with this ? :(
WARRIOR [948]

Answer:

The first one. L (t) = 0.37t + 39.67

Step-by-step explanation:

The "0.37t" is about 0.37 years of life expectancy added for each year that passes the "+ 39.67" is the starting life expectancy that has to be added to whatever the rising trend may be. just multiply 0.37 by 20  and youl have the rising trend.

6 0
3 years ago
Consider the following predator-prey systems of differential equations dx/dt = -x/2 + xy/2 + y, dy/dt = y(1 - y) - xy/2 + y.
fgiga [73]

Answer:

a) Prey: \frac{dy}{dt}=y(1-y)-\frac{xy}{2+y}

Predator: \frac{dx}{dt}=\frac{xy}{2+y}-\frac{x}{2}

b) they grow as a function y(1-y).

c) It will grow faster and probably exponentially,

Step-by-step explanation:

a)

Prey

For prey population the rate of change is given by its own growth rate, it would be a constant times the variable, minus the rate at which it is preyed upon, usually it is represent a parameter times x and y.

So the differential equation could be:

\frac{dy}{dt}=y(1-y)-\frac{xy}{2+y}

Predator

By the other hand, the rate of change of the predator's population depends only the rate at which the predators eat preys, minus predator's intrinsic death rate.

\frac{dx}{dt}=\frac{xy}{2+y}-\frac{x}{2}

b)  If there are no predators present the differential equation that models prey population will be:

\frac{dy}{dt}=y(1-y)

So they grow as a function y(1-y).

c)  In the case of the population of prey is much grader than predator, it will grow faster and exponentially, because it we assume that preys have unlimited food supply.

I hope it helps you!

7 0
4 years ago
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