Mathematics High School

80%
as in a decimal 80%

Answers

Answer 1

Answer:

0.8

Step-by-step explanation:

"percent" means "per 100" which is the same as "divide by 100."

To change a percent to a decimal, divide the percent by 100.

80% = 80/100 = 0.8

Related Questions

George has $15. He would like to know if he has enough money to see a movie ($9.00) and buy a pretzel ($2.65), a drink ($1.35), and two veggie cups ($1.74 each). George incorrectly used this numerical expression to decide if he had enough money.


15 - 9 + 2.65 + 1.35 + 2(1.74)

Use the order of operations to simplify this expression.

Answers

Answer:

Yes, he has enough money and your simplified answer is below. If I'm wrong correct me or give me a comment.

Step-by-step explanation:

15 - 9 + 2.65 + 1.35 + 2(1.74) Multiply first.

15 - 9 + 2.65 + 1.35 + 3.48  Then just add or subtract from the left to the right

6 + 2.65 + 1.35 + 3.48

8.65 + 1.35 + 3.48

10 + 3.48

13.48 would be the simplified answer.

Answer:

um i put 13.48 and got it right

Step-by-step explanation:

What is the difference in the steps you take to evaluate (-7)^2 and -7^2 ? What is the
difference in the values?

Answers

Answer:dap

Step-by-step explanation:

Evaluate 8.5 +(-A) for A = -7.1

Answers

Answer:

15.6 = A

Step-by-step explanation:

8.5 + ( - (-7.1))

8.5 + 7.1

15.6

PLEASE HELP MEEEE

Four-fifths of a number equals 16. Find the number.


The number is 20

The number is 31

The number is 17

Answers

Answer:

The number is 20

Step-by-step explanation:

Four-fifths = 4/5

Let the number = x

4/5 of x = 16

4/5 * x = 16

4/5x = 16

Divide both sides by 4/5

x = 16 ÷ 4/5

= 16 × 5/4

= 80 /4

= 20

Therefore, the number is 20

5^x + 5^x+1= 150
Find x
Help me pls i need soon
Tksss

Answers

Answer:

[tex]x=2[/tex]

Step-by-step explanation:

So we have the equation:

[tex]5^x+5^{x+1}=150[/tex]

First, separate the second term:

[tex]5^x+(5\cdot5^x)=150[/tex]

Let u equal 5ˣ. So:

[tex]u+5u=150[/tex]

Combine like terms:

[tex]6u=150[/tex]

Divide both sides by 6:

[tex]u=25[/tex]

Substitute back u:

[tex]5^x=25[/tex]

Take the base 5 logarithm of both sides:

[tex]\log_5(5^x)=\log_5(25)[/tex]

The left cancels:

[tex]x=\log_5(25)[/tex]

Evaluate the right:

[tex]x=2[/tex]

So, our answer is 2.

And we're done!

Which equation would you use to find x?

Answers

You would use B to find X

HELP Plssss..... The m

Answers

Answer:

Step-by-step explanation:

Hey there!!!

According to the question,

Angle P is three less than twice less of an angle Q.

Then, let angle Q be x then angle P is 2x-3.

Now, it has also given that they are supplementary angle.

We know that the sum of supplementary angle is 180°.

Therefore, x+ 2x - 3°=180°.

Or, 3x = 180°-3°

Or, x = 177°/3

Therefore the measure of angle Q is 59° and P is 2×59°-3°= 121°.

Hope it helps....

PLEASE HELP I WILL MARK YOU BRAINLIEST DO PART A AND PART B PLEASE

Answers

Answer:

a)The volume of soil required is 48 ft^3    

b) Trevor has 36 ft^3 of soil

Step-by-step explanation:

Find the measure of angle C of △ABC, if:
m∠A=60°+α, m∠B=60°−α.

Answers

Answer:

In a triangle, sum of three angles=180°

So, A+B+C=180

C=180-A-B

C=180-60-a-60+a

C=60°

Hope it helps :-)

Fastest answer gets brainliest!!! 20x4-5+2001/974=

Answers

Answer:

20x4-5+2001/974= 77.05

is your answer

If it is 375 miles form Los Angeles To San Francisco and on a map the scale is 2cm=10miles how far apart are they on the map

Answers

187.5 miles left to go :’)

dees nute lil d man you knoe bro sup

Marisol earns overtime pay when she works more than 9 hours in a day. So far, she has worked 4 hours today. Write, and solve an inequality to show the values of x that will allow Marisol to earn overtime this shift.

PLSS HELP ASAPPP URGENT GOOD AND REAL ANSWERS ONLY

Answers

so basically you wanna think about what you know...she’s worked 4 hours, but she needs to get over 9 hours in order to get overtime.

we’re using x as the variable representing hours worked (other than the 4 hours already)

knowing this, we can set it up so that we have

4 + x > 9

and the. solve
4 + x -4 > 9 -4

x > 5

so this basically means that she needs to work over 5 more hours in order to earn overtime this shift

hope this helps :)

HELP!!!!!!!!!!!!!

-24 + 2(y - 9)

Answers

Answer:

2 ( -21 + y )

Step-by-step explanation:  

-24 + 2(y - 9)

-24 - 18 + 2y

-42 + 2y

2 ( -21 + y )

When a number is divided by -4 the quotient is -224. Find the number.

Answers

Answer:

896

Step-by-step explanation:

Simply multiply -224 * -4.

Which operation has to be calculated first in this expression?
7 – (4 + 5)

Answers

Answer:

Addition

Step-by-step explanation:

You should add 4 and 5 first because of PEMDAS.

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

Since 4+5 is in parentheses it should be done first.

Answer:

Addition

Step-by-step explanation:

This the answer because:

1) First, we have to know the Order of Operations

2) An easy way of remembering this is PEMDAS or GEMS

PEMDAS : Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction

GEMS : Grouping (Parenthesis), Exponents, Multiplication and Division (whichever one comes first from left to right), Addition and Subtraction (whichever one comes first from left to right)

3) In this expression, parenthesis would be first because that's what comes first in the order of operations

4) Inside the parenthesis is another expression where you need to add. Therefore, the answer is addition

Hope this helps!

to classify numbers first do have to simplify fractions or roots ​

Answers

Fractions not roots
Explanation
Just cuhz

Answer:

simplify

Step-by-step explanation:

just simpify then theres an answer waiting for you to jearney on

Can somebody help me wit this

Answers

........??.??.?.?.?.?.?..??.?.?.?.?.?.

Melissa compares the numbers 0.058 and 0.21. She thinks that 0.058 > 0.21 because 58 > 21 , but the reasoning that Melissa used is incorrect

Answers

Answer:

Step-by-step explanation:

What is the answer tho

The Ratio of cats to dogs is 3:4. if there are 12 cats, how many dogs are there?

1. 6 dogs
2. 20 dogs
3. 16 dogs
4. 12 dogs

Answers

I think it is 16 dogs but I’m not sure

THIS IS HARD HELP....

Answers

Answer: you can google the Four 4’s assignment and there will be several sites and documents giving you all the answers

Step-by-step explanation:

4-3= 1
4x4= 16
4x5= 20

here’s a start

It’s suppose to be reduced in improper fractions ‍♀️

3(x-5)/2 = 2(x+5)/3

Answers

Answer:

13.

Step-by-step explanation:

Cross multiply:  [tex]\frac{3x-15}{2}=\frac{2x+10}{3}[/tex]

Remove the brackets: 3(3x-15) = 2(2x+10)

Move the terms: 9x-45 = 4x+20

Collect like terms and calculate: 9x-4x=20+45

Divide both sides: 5x = 65

|x|= 0.25
What value(s) of x make(s) the equation true?
A. -0.25 only
B. 0.25 only
C. 0.5 only
D. -0.25 and 0.25
E. -0.5 and 0.5

Answers

answer: d. -0.25 and 0.25
explanation: the absolute value bar means that any number put into there will be the positive version no matter its original value. therefore, the absolute value of -0.25 and 0.25 is 0.25.

Please help me and I will make you the brainiest

Answers

Answer:

y=a-4 divided 3-a and a cut so remember 4divided3  so, y= 1.33

Step-by-step explanation:

Identify The Type Of Graph Below.

Answers

Answer: That's a line graph

Step-by-step explanation:

Answer:

It would be a line graph or a bar/ coulum

Step-by-step explanation:

I really need help on this

Answers

i tried to be as detailed as possible...if you’re mainly just looking for answers...look for the arrows like this ↳

The layer of the atmosphere that is least densely packed is

Answers

Answer:

mesosphere

The air in the mesosphere has extremely low density: 99.9 percent of the mass of the atmosphere is below the mesosphere. As a result, air pressure is very low.

563x367
use scratch paper to help you ​

Answers

Answer: 206621

Step-by-step explanation:

563x367=206621, so 563x7=3941, 563x60=33780, and finally 563x300=168900. Add them all up, 3941 + 33780 + 168900 = 206621.

Please Mark Brainliest!

Rashida owns a bike rental company. She charges an initial fee of $10 for each rental and an hourly rate of $4. Which of the equations below shows the amount y that Rashida charges for a bike rental that lasts x hours? A y = 10 + 4x C y = 4 + 10x B y = 10 - 4x D y = 4 - 10x

Answers

Answer:

Step-by-step explanation:

y = 4x + 10

the answer is A

Help me please!!! Find the distance between the points (-3,-1) and (5,-1)

Answers

Answer:

D = 8

Step-by-step explanation:

[tex]d= \sqrt{(5-(-3))^2+(-1-(-1))^2} \\d= \sqrt{(8)^2+(0)^2} \\d= \sqrt{64+0} \\d= \sqrt{64} \\d= 8[/tex]

1. Jane solved the midpoint, M, of a segment with endpoints (-4,-1) and(2,5) as shown below. Is her findings correct?

Answers

Step-by-step explanation:

I guess I was help full for u

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