What is -9/20 as a decimal and as a percent?

Answers

Answer 1
Answer: Decimal: -0.45 percent:-45%

Answer 2
Answer: To find out what a fraction as a decimal would be, you simply need to divide the numerator by the denominator.

(-9)/(10) = -9/10=-0.9

Now to find the percent.
To find a percentage based off of a decimal, we can either multiply the decimal by 100, or (my personal shortcut) just shift the decimal point over two places to the right.

-0.9 = -90%

which is all we need to know.

(-9)/(10) written as a decimal and a percent is -0.9 and -90% respectively.
Hope that helped! =)

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How do you solve this? 3w+2<2w+5

Answers

3w + 2 < 2w + 5

First, subtract 2 from both sides. / Your problem should look like: 3w \ \textless \  2w + 5 - 2
Second, simplify. / Your problem should look like: 3w \ \textless \  2w + 3
Third, subtract 2w from both sides. / Your problem should look like: 3w - 2w \ \textless \  3
Fourth, subtract 3w - 2w to get w. / Your problem should look like: w \ \textless \  3

Answer: w < 3

I need the answer as soon as possible
Graph the following system of inequalities.

Answers

Answer:

X i think

Step-by-step explanation:

A population of insects increases at a rate of 1.5% per day. About how long will it take the population to double?2.5 days
5.0 days
46.6 days
66.7 days
An explanation would be great help.

Answers

The correct answer is:

46.6 days

Explanation:

The general form for exponential growth is

A=p(1+r)^t, where A is the total amount, p is the initial amount, r is the percent of growth, and t is the amount of time (in this case, days).

We do not know the initial amount, the total amount, or the amount of time.  We do know that r, the percent of growth, is 1.5%; 1.5% = 1.5/100 = 0.015:

A=p(1+0.015)^t

We also know we want the total amount, A, to be twice that of the initial amount, p:

2p = p(1+0.015)^t\n2p=p(1.015)^t

Divide both sides by p:

(2p)/(p)=(p(1.015)^t)/(p)\n\n 2=1.015^t

Using logarithms to solve this,

\log_(1.015)(2)=t\n\n46.6=t

Sorry, I tried to answer with a full explanation but the equation function on brainly.com stopped working. Now I can't delete my attempt at an answer with explanation. The correct answer is 46.6 days.


XYZ is a right angle triangle.XY = 5cm
Angle Z = 32°

Calculate angle YZ.

Answers

We are given the measurement of XY which is 5cm. This is the opposite since it is opposite of the angle given. The angle is 32 degrees. Since this is a right triangle there is a simple relationship between sides and angle. In this case since we are to find YZ or the hypotenuse we are given the relationship sin(\alpha)=opposite/hypotenuse. Then the answer would be 9.44 cm. 

For the bake sale, Sandra baked 4 trays of cookies, with 12 cookies oneach tray. Teo baked 6 pans of brownies and divided each pan into 8
pieces. How many items will Sandra and Teo have for sale in total? Write
a mathematical expression, then solve your expression to find the
answer.

Answers

Answer:

Total is 96

Step-by-step explanation:

Answer:

Step-by-step explanation:

12 x 4= 48

8 x 6= 32

48 +32= 80

Hope this helps

What is the product of a subtraction equation called?

Answers

Answer:

The "difference".

Step-by-step explanation:

In the equation 7-5=2, 2 is the "difference" between those numbers. Be careful when calling it a product though, because a product is the result of a multiplication equation!

*Bonus nonsense: The first number (7 here) is called the minuend, the second number (5 here) is called the subtrahend, and yes, I totally looked that bit up.

It is called “the difference”