MATHEMATICS HIGH SCHOOL

5. The cost of a notebook increased from $4.30 to $4.58, what is the percent increase?A 5.5%
C. 6.5%
B 6%
D. 7%

Answers

Answer 1
Answer: The answer is 6.5
Explanation : 1. Find out the increase number by subtracting 4.58 - 4.30 = 0.28 or 6.51%
2. Divide the increase number 0.28 by 4.30 and multiple by 100 which gives you 6.51162791 .
3. Get rid of all the numbers behind 5 and you can’t round it because 1 is too small. Which then gives you the answer 6.5 :) <3

Related Questions

Select all that apply.Jacqueline solved 80% of problems correctly in a math test whereas Marc solved only 65% of the problems correctly. Let the event J = correct problems solved by Jacqueline, and the event M = correct problems solved by Marc. A. P(J) × P(M) = P(J ∩ M) B. The probability that Jacqueline and Marc both can solve a problem in a math test is 0.93. C. P(J) × P(M) = P(J ∪ M) D. J and M are independent events. E. The probability that Jacqueline and Marc both can solve a problem in a math test is 0.52
An angle measures 142° less than the measure of its supplementary angle. What is the measure of each angle?
Order the following numbers from least to greatest.Put the lowest number on the left.-201 75
Add and subtract functions
If f(x) = x(2x – 1) and g(x) = 2x – 1, find f(x)/g(x).

The volumes of two similar solids are 1,728 m^3 and 343 m^3. The surface area of the larger solid is 576 m^2. What is the surface area of the smaller solid? a. 196 m^2 b. 76m^2 c. 1,372m^2 d. 392 m^2

Answers

Answer:

Option a. 196 m²

Step-by-step explanation:

Volumes of two similar solids are 1728 m³ and 343 m³

So the ratio of these volumes = (343)/(1728)

Now we know volume is a three dimensional unit so we find the cube root of the ratio of the volumes to find the ratio of sides.

Scale factor = \sqrt[3]{(343)/(1728) }=(7)/(12)

Now we know area of solids is a two dimensional unit so we will square the scale factor and this will be the ratio of area

(Scale factor)² = ((7)/(12))^(2) = (Surface area of smaller solid)/(surface area of larger solid)

Area of larger solid = 576 m²

((7)/(12))^(2)=(S)/(576)

S=(49)/(144).(576)=(49).(4)=196

Surface area of of the smaller solid = 196 m²

Option A. is the answer.
Scale factor = (1728/343)^(1/3) = 12/7 Let the surface area of the smaller solid be A, then: A * (12/7)^2 = 576 So A = 196

Suppose you produce a camera that costs $50 to make. At a selling price of $45, you will _____.earn a profit
just cover your costs
lose money

Answers

Answer:

You will __$5___earn a profit  just cover your costs  lose money

Step-by-step explanation:

As per the statement:

Cost Price of the camera = $50  

Selling price of the camera = $45

We have to find the profit that you will earn.

Since,  C.P > S.P then, you have suffer a loss.

Using formula:

\text{Loss} = \text{Cost Price} -\text{Selling price}

Then;

\text{Loss} = 50-45 = \$5

Thus, if you want to cover your costs lose money , then you will earn a profit of $5
You will lose money. Because $50 to make subtract $45 to sell (50-45) leaves you losing $5.

I can type 800 words in 12 minutes. How many words can I type in 1 minute?​

Answers

the answer would be 67 words per minute because 800 divided by 12 would be 66.66 but if you round it; it would be 67 words per minute

Answer:

66 2/3 words per minute

Step-by-step explanation:

To convert 800 words in 12 minutes to a unit rate, you need to divide 800 and 12 by 12. Since 80012=2003=6623  

12

800

​  

=  

3

200

​  

=66  

3

2

​  

, then 800 words in 12 minutes = 6623words per minute  

66  

3

2

​  

words per minute

​  

.

A student plays a total of 20 rounds of rock paper scussordbhe wins 75% of them. How many rounds did he win

Answers

Answer:

15 rounds

Step-by-step explanation:

Change 75% into a decimal (0.75).

Multiply 20 by 0.75.

When doing so, you get 15 rounds.

To check this: 15/20 = 3/4 = 0.75

Answer:

if that student is scussordbhe then they won 15 rounds, if they arent they won 5.

Step-by-step explanation:

Can someone help me in probability?Amanda wrote a computer program that generates two random numbers between one and eleven.When she runs it,what is the probability that both values will be more than three?

Answers

the probability is a fraction. all possible outcomes / number of items
so 8/11 is the probablity of finding a number higher than 3 out of 11
could also be written as:
8/11
8:11 
.73
73 percent

X²-7x-18 factor completely

Answers