If he drank 80% of his water on his entire hike, how much did he drink?

Answers

Answer 1

Not enough information is given to answer this question. If there was 100% water at the beginning of the hike and now there is 80% it would be 20% but without the information, you cant know.

Answer 2

The purpose of this warm-up is to elicit the idea that tape diagrams can be used to think about fractions of a whole as percentages of the whole, which will be useful when students interpret and draw tape diagrams in a later activity. While students may notice and wonder many things about these images, the important discussion points are that there are two rectangles of the same length, one of the rectangles is divided into four pieces of equal length, and a percentage is indicated. 80 percent of what number is 100?
100 is 80% of 125

Steps to solve "100 is 80 percent of what number?"

We have, 80% × x = 100
or,
80
100
× x = 100
Multiplying both sides by 100 and dividing both sides by 80,
we have x = 100 ×
100
80
x = 125
If you are using a calculator, simply enter 100×100÷80, which will give you the answer.

Related Questions

12(8 – 5) idk to anwsher plz hefp

Answers

Answer:

Step-by-step explanation:

12(8-5)

12 * 3

Answer:

Step-by-step explanation:

(8-5) =3 then u do

12x3=36

Find m a. 90
b. 31
c. 59

Answers

Answer:

i think its B

sorry if its wrong im not really sure by my answer

Skyler solved an equation incorrectly, as shown below:

Step 1: 12 + x = 36
Step 2: x = 36 + 12
Step 3: x = 24

Which statement best explains why Step 2 is incorrect in Skyler's solution?

Answers

Answer:

Step 2 is incorrect.

Step-by-step explanation:

It's incorrect because I'm pretty you need to do inverse operation. To get 24 you must subtract, not add.

Molecules of a toxic chemical eventually decompose into inert substances. Suppose the decomposition time is exponentially distributed with a mean of 1/lambda. The half-life of such a persistent poison is that time beyond which the probability is .50 that a particular molecule will remain toxic. Find the half-life for chemicals whose molecules have an average decomposition time of

Answers

Answer:

a)4.15 years

b)22.18 years

c)188.53 years

d)3027.66 years

Step-by-step explanation:

Formula : [tex]P(X\leq t)=1-e^{\frac{-t}{\lambda}}[/tex]

So, [tex]P(X>t)=1-(1-e^{\frac{-t}{\lambda}})[/tex]

[tex]P(X>t)=e^{\frac{-t}{\lambda}}[/tex]

We are given that The half-life of such a persistent poison is that time beyond which the probability is .50 that a particular molecule will remain toxic i.e. P(X>t)=0.5

So, [tex]e^{\frac{-t}{\lambda}}=0.5[/tex]

Taking natural log both sides

[tex]ln(e^{\frac{-t}{\lambda}})=ln(0.5)\\\frac{-t}{\lambda}=ln(0.5)\\t=-\lambda ln(0.5)[/tex]

[tex]\lambda =6[/tex]

t=-(6) ln(0.5)=4.15 years

[tex]\lambda =32[/tex]

t=-(32) ln(0.5)=22.18 years

[tex]\lambda =272[/tex]

t=-(272) ln(0.5)=188.53 years

[tex]\lambda =4368[/tex]

t=-(4368) ln(0.5)=3027.66 years

I need help really quickly with this one!

Answers

Answer: A (y = 1)

Step-by-step explanation:

when dividing, dividing by 0 equals an undefined fraction, therefore, if y was equal to 1, it would cancel out the y - 1, making it 0. I hope that's right :0

what is the least common denominator of 4/5 and 3/10?plssreal quick

Answers

Answer:

Step-by-step explanation:

The least common denominator of 4/5 and 3/10 would be 5.

Gloria deposited $500 into a bank account that earned 7.5% simple interest each year. She earned $225 in interest before closing the account.

No money was deposited into or withdrawn from the account.

How many years was the money in the account?

Round your answer to the nearest whole year.

Answers

Answer:

Step-by-step explanation:

7.5 % × 500 = 37.5

37.5 × 6 = 225

Answer:

Step-by-step explanation:

(Simplify the equation) 3n+5+2n=5+n+6n-n

Answers

Answer:

n=0

Step-by-step explanation:

3n+5+2n=5+n+6n-n

move like terms together

3n+2n+5=5+n+6n-n

simplify down

5n+5=5+6n

subtract 5n from each side

5=5+n

subtract 5 from each side

0=n

What is the solution (x,y) to the system of equations given? 2 x + 4 y = − 16 2x+4y=−16 2 y − x = = 16 2y−x==16

Answers

Answer:

(-12,2)

Step-by-step explanation:

2x + 4y = -16

2y - x = 16

Multiply the bottom part by 2.

2x + 4y = -16

4y - 2x = 32

Add the equations and the answers to the equations up, and they will equal each other.

(2x + 4y) + (4y - 2x) = -16 + 32

8y = 16

y = 2

Plug y = 2 to the 2nd equation.

2*2 - x = 16

4 - x = 16

Subtract 4 from both sides.

-x = 12

Multiply both sides by -1.

x = -12

If Micah save $150 how much money will his parents give him

Answers

Answer:

$300

Step-by-step explanation:

150/5 = 30, 30 x 10 = 300

The crew on a fishing boat caught four fish that weighed a total of 1,080 pounds. The
tarpon weighed twice as much as the amberjack
and the white marlin weighed twice
as much as the tarpon. The weight of the tuna was 5 times the weight of the
amberjack
How much did each fish weigh?
The amberjack weighed
pounds.
The tarpon weighed
pounds.
The marlin weighed
pounds.
The tuna weighed
pounds.
Kk

Answers

Answer:

Step-by-step explanation:

First, We highlight key details. Here we can use the information 1,080 pounds, tarpon weighed twice as much as the amberjack, the white marling weighed twice as much as the tarpon, and the tuna weighed 5 times the weight of the amber jack. And....I'm lost. Do you think you could help me figure it out by finding the first one? if you do that would be great, and I'll be sure to update my question. Thank you! ^^)

Need help with this problem and a step by step explanation

Answers

the answer b
(i can’t explain and if i did it would be confusing)
but here’s this:
the lower the number, the more to the right

9. A candle has an initial height of12 inches. Sara lights the candle and it begins to melt at an average rate of 0.5
inch per hour. Which function can be used to find the height of the candle inches after x hours?
A) H(X) = 0.5(x +12) B) H(x) = -0.5(x +12) C)H(x) = 12 +0.5x
+
D) H(X) = 12 -0.5x
1 Pt
А.
B
D
E

Answers

Answer:

Step-by-step explanation:

h(x)=12-0.5x

x=hour

7th grade math help me pleasee

Answers

Answer:

a, c, b

Step-by-step explanation:

ITS CORRECT TRUST MEEE

A taxi driver charges a fee if $4 plus 1.50 per mile. If you total was $13 how manu miles did you take

Answers

Answer:

Step-by-step explanation:

you need to do this (13-4)/1.50

PLEASE help it's due like right now

Answers

Answer:

B (6,7)

Step-by-step explanation:

point x has moved 2 places left, so you move z to places left

I think the answer would be B:)

what came in the mail today

Answers

Answer:

Step-by-step explanation:

A bunch of bills for spectrum tv

Which of the following is a radical equation?
a. x StartRoot 3 EndRoot = 13
b. x + StartRoot 3 EndRoot = 13
c. StartRoot x EndRoot + 3 = 13
d. x + 3 = StartRoot 13 EndRoot

Answers

The starting radical equation of the problem is d x+3=StarRoot 13 EndRoot

Answer:

the answer is D

Step-by-step explanation:

whats 6 x 3 + 36 help meeeeeeeeeeeeeeeeeeeeeee

Answers

Answer:

Step-by-step explanation:

Need answers ASAP
I will give brainliest to first who responds

Answers

Sksjsksjdjjdjdjdjrjjdjdjtirirjkr

It cost Emma $5.34 to send 178 text messages. How much does each text cost to send?

Answers

Answer:

approximately $0.33

Step-by-step explanation:

you just do 178/5.34

the ordered pair (x,y)=(2,-3) is a solution to which of the following systems of equation

Answers

Answer:

Y=2x-7

Step-by-step explanation:

What is the range of the function f(x) = 2x+3

Answers

Answer: (-∞,∞)

Step-by-step explanation: The line extends forever in both directions meaning that the endpoints will be negative infinity and infinity.

Economists study the way society uses its resources. One important resource studied is agriculture. The recent increase in demand for organic produce has created some interesting economic scenarios for both farmers and consumers. Click the article to learn key facts about the economics of organic produce and answer a few questions.

Which is a reason that organic farming is more expensive than conventional farming?

How many years must a farm be run organically before its produce can be labeled as “organic”?

What is a benefit of crop rotation?

Answers

Answer:

Which is a reason that organic farming is more expensive than conventional farming?

Organic farmers must pay for a costly certification process

How many years must a farm be run organically before its produce can be labeled as “organic”?

What is a benefit of crop rotation?

Rotating crops can help build healthy soil.

Step-by-step explanation: Hope you pass! :)))

first one is C second one is 3 third one is A

hope i helped

over a two hour time period a snail moved 50 inches. how far is this in yards

Answers

Answer:

1.38889

Step-by-step explanation:

Answer:

your answer is 1.3889 plz mark brainlist thank you

Explain how you can determine that the following
system has one unique solution – without actually
solving the system.

2x+y = 4
2y = 6- 2x

Answers

you can graph it with the calculator or on graph paper and see where the two lines would cross
you would put them in slope-intercept form (y=mx+b)

so
2x + y = 4 would become
y = -2x + 4

and

2y = 6 - 2x becomes
y = -x +3

graph them and see where they cross. hope this helps!!

What is the value of x in the figure below? asap :(

Answers

Answer:

22.5

Step-by-step explanation:

Step 1:

8x - 50° = 6x - 5° Vertical ∠'s

Step 2:

8x = 6x + 45° Add 50° on both sides

Step 3:

2x = 45° Subtrat 6x on both sides

Step 4:

x = 45° ÷ 2 Divide

Answer:

x = 22.5

Hope This Helps :)

Dylan makes $336 for 32 hours of work, and Angela makes $420 for 42 hours of work.

1] How much do Dylan and Angela each make per hour?

2] Is Dylan’s wage for 25 hours proportional to Amber’s wage for 42 hours? Why or why not?

Answers

Answer:

Step-by-step explanation:

1 . Dylan : $336/32 hrs = 10.50/ hr Angela : $420/42hrs = $ 10.00/hr

2. No because $ 10.50x25 262.50 where ambers is 15 420 there unit rate is different.

Dylan $10.5 per hour
Angela $17.5 per hour
no its not proportional because half of 50 is 25 so therefore 42 would not be prportional to 25

What is the remainder of 2x3 − 7x2 + 5x − 1 divided by (x − 3)?

−211
5
−133
2

Answers

By the remainder theorem, the remainder upon dividing p(x) = 2x³ - 7x² + 5x - 1 by x - 3 is p(3),

p(3) = 2(3)³ - 7(3)² + 5(3) - 1 = 5

Here is a figure that looks like the letter A, along
with several other figures. Which figures are scaled
copies of the original A?

Answers

Figure 2 as it is the same as original but bigger

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