9 stores is 3% of how many stores

Answers

Answer 1

Answer: Hey There!

The answer to this problem is 2.7

Steps
1. Multiply 9*0.3

2. Once you multiply you should get 2.7

3. To solve step one you have to pretend you are multiplying 9*3

4. The answer you get for step 3 is 27

5. After you get that answer (27) you must put the decimal in

6. After you do step 5 you should get 2.7

In conclusion, you're final answer should be 2.7

Hope This Helped ;)

Answer 2

Answer: This question is a little tricky. This means that 9 is 3% of x stores. 3% is equal to 0.03, because a percent is a hundredth of a whole. To find the percentage of x stores, we multiply the percent (in decimal form) by x. This is equal to 9. Our equation is 9=0.03x. Now, all we have to do is divide 9 by 0.03, to isolate x, and we'll know the answer! 9/0.03=0.03x/0.03. 9/0.03=300. So, x=300.

Answer: 300 stores

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What are the disadvantages to solving a quadratic equation by factoring

Answers

Answer:

-factoring may not work; for instance, factoring will not find solutions that are not integers.

-very difficult to use on any quadratic that doesn't have extremely easy numbers. In most cases, factoring will only be simple if the answers are integers or commonly used fractions.

hope this helps :)

|(8.6x107):(9.1x10-8)

Answers

Answer:

$9.45054*10^(14)$

Step-by-step explanation:

we have

$(8.6*10^(7) )/(9.1*10^(-8))=(8.6)/(9.1)*( 10^(7))*(10^(8))\n \n= (8.6)/(9.1)*( 10^(7+8))\n \n= (8.6)/(9.1)*( 10^(15))\n \n=0.945054*( 10^(15))\n \n=9.45054*10^(14)$

Answer:

$\large\boxed{9.45\cdot10^(14)}$

Step-by-step explanation:

$(8.6*10^7):(9.1*10^(-8))\n\n=(8.6)/(9.1)\cdot(10^7)/(10^(-8))\qquad\text{use}\ (a^n)/(a^m)=a^(n-m)\n\n=(86)/(91)\cdot10^(7-(-8))\n\n=(86)/(91)\cdot10^(7+8)\n\n=(86)/(91)\cdot10^(15)\n\n\approx0.945\cdot10^(15)\n\n=9.45\cdot10^(-1)\cdot10^(15)\qquad\text{use}\ a^n\cdot a^m=a^(n+m)\n\n=9.45\cdot10^(-1+15)\n\n=9.45\cdot10^(14)$

Michael just drank a cup of coffee to help him stay awake. The coffee had 110 milligrams of caffeine in it. If his body processes 5% of the caffeine every hour, how much will be left in 8 hours? A.74 B.72 C.56 D.73

Answers

Answer:C

Step-by-step explanation:

Answer C.56!

%5 of 110 is 5.5, 5.5 • 8= 54, 110-54= 56!

Simplify the expression: (3 + 8i) − (4 + 2i).−1 + 6i
−1 + 10i
1 + 6i
1 + 10i

Answers

The given expression simplified can be written as -1 + 6i. which is the correct answer that would be an option (A).

What is a complex number?

A complex number is a combination of real values and imaginary values. It is denoted by z = a + ib,

where a, and b are real numbers and i is an imaginary number.

To simplify the expression (3 + 8i) − (4 + 2i), we need to subtract the two complex numbers. To do this, we subtract the real parts and the imaginary parts separately.

The real part of the first complex number is 3, and the real part of the second complex number is 4.

Subtracting these gives us -1.

The imaginary part of the first complex number is 8, and the imaginary part of the second complex number is 2.

Subtracting these gives us 6. Therefore, the simplified expression is (-1) + (6i) = -1 + 6i.

Therefore, the correct answer is: -1 + 6i.

Learn more about the complex numbers here:

brainly.com/question/19007885

#SPJ2

Answer:

-1+6i

Step-by-step explanation:

(3+8i)-(4+2i)

3+8i-4-2i

3-4+8i-2i

-1+6i

When can you add or subtract equations in a system to solve the system? when do you have to multiply first? Justify your answers with examples.

Answers

You must always use the order of operations also known as PEMDAS meaning multiplication and division come before adding and subtracting for example when solving 2+2÷2 if not follwing PEMDAS it is 2 When you do it the correct way using PEMDAS it will be 3

Which strategy best explains how to solve this problem? Colin is preparing for a marathon by running in his neighborhood. The first week, he runs one block. The next week, he runs twice as many blocks as the first week (2 blocks). Each week, he plans to run twice as many blocks as he ran the week before.

How many blocks will Colin run by the end of the sixth week?

A.
Use objects to model the problem.

Put out 1 chip to represent the blocks run in week one. Put out twice that amount for week two. Put out twice that amount (from week two) for week three. Do this 3 more times, putting out twice the amount from the previous week each time.

B.
Make a table.

In the first row, write first week - 2 blocks. In the next row, write second week - 4 blocks. In the third row, write third week -6 blocks. Continue this pattern for three more rows.

C.
Write a number sentence.

(1 + 2) × 6 = x
Add the number of blocks run in the first and 2nd week. Then multiply the sum by the number of weeks (6).

Answers

Here is the table
X | Y
_|__
1 | 2
2 | 4
3 | 8
4 | 16
5 | 32
6 | 64

Because if he runs twice as many blocks as the previous week, you have to multiply the previous week's number of blocks by 2.
You will have to ask someone else about the equation, though, because I'm not as good with the equations.

A is the best to use. B and C are if you're adding 2 instead of doubling :)

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