1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Snezhnost [94]
2 years ago
13

You have 16 coins that are heads up and 18 coins that are tails up. After you add some coins that are tails up, the ratio of hea

ds up to tails up is 1 to 1.5
How many coins are tails up?


How many coins in all?
Mathematics
1 answer:
Gwar [14]2 years ago
6 0
So 16=heads
18=tails
after you add some tails
18+x

ratio of heads to tails is 1:1.5
heads=16, didn't change
tails=18+x

so
1:1.5=16:18+x
fractionify
1/1.5=16/(18+x)
1/1.5=2/3
2/3=16/(18+x)
mutiply both sides by (3)(18+x)
2(18+x)=3(16)
36+2x=48
subtract 36 from both sides
2x=12
divide 2
x=6

6 tails added


total=heads+tails
heads=16
tails=18+6=24
total=16+24
total=40



6 tails added
40 total coins
You might be interested in
Given: 315/1575. Write the prime fractorization of the numerator and the denominator, then write the fraction in lowest terms.
Ne4ueva [31]
The prime factorization of the numerator, 315, is 5 x 3 x 3 x 7. That of the denominator, 1575 is 5 x 5 x 3 x 3 x 7. To convert the fraction to its lowest form, cancel all the factors that appear to both the numerator and denominator. We will be left with 1/5. 
3 0
3 years ago
Please help with number 1
bezimeni [28]

Answer:

19.0681

Step-by-step explanation:

Given in the question that,

angle from ted to the dog = 60° with the ground

height of ted from the ground =  16ft

To find,

distance between dog and the door of ted's building

Considering the scenario make a right angle triangle:

<h3>By using pythagorus theorem:</h3>

Tan 40 = opposite / adjacent

Tan 40 = height / distance between dog and the door

Tan 40 = 16ft / x

x = 16 / tan40

x = 19.068057

x ≈ 19.0681 (nearest to thousand)

So, the dog need to walk 19.0681ft to reach the open door directly below Ted.

7 0
3 years ago
PLEASE HELP WILL GIVE BRAINLY
Bogdan [553]

The mean absolute deviation of the scuba diver’s depth over the entire 25 min is 2.4 meters

<h3>What is mean absolute deviation?</h3>

It is defined as the measure to show the variation in data set in other words between the mean and every data value, the distance known as the MAD.

We have depths of the scuba diver, in meters

{−9, −18, −16, −13, −14}

We know the formula for the mean absolute deviation:

\rm MAD = \dfrac{\sum |x-X|}{n}

Here n is total number of observation

x is the elements in the data set

X is the mean of the data.

n = 5

x = -70/5 = -14

∑|x-X| = 12

MAD = 12/5 = 2.4 meters

Thus, the mean absolute deviation of the scuba diver’s depth over the entire 25 min is 2.4 meters.

Learn more about the mean absolute deviation here:

brainly.com/question/10528201

#SPJ1

6 0
2 years ago
The original price of a pair of jeans is $32 the sales price 15% off the original price what is the amount off the original pric
ivolga24 [154]

$32+15%=32.15

Hope this helps ^_^

3 0
3 years ago
The Keller family's dinner bill is $55.35. This includes an 8% meal tax and a 15% tip on original meal for the server
Arlecino [84]
You find 8% of 55.35  which is 4.42
Then you find 15% of 55.35 which is 8.30
You add them together which equals 12.72
You then subtract 12.75 from 55.35   55.35-12.75=42.63
The original price was $42.63
5 0
3 years ago
Other questions:
  • How do you solve 1320 divided by 120
    9·1 answer
  • Kaifeng Montez can buy an 8-slice pepperoni pizza for $15.92 or a 12-slice pizza for $22.32. Assume the slices are the same size
    13·1 answer
  • How to solve for y and simplify
    13·1 answer
  • Joyce paid $98.00 for an item at the store that was 30 percent off the original price. What was the original price?
    8·2 answers
  • Combine. simplify the answer 1/2+3/10
    11·2 answers
  • What is the missing term in the geometric sequence?
    12·1 answer
  • 5x^2y/15xy simplified?​
    7·1 answer
  • Please help! 60 points and brainiest
    12·1 answer
  • Lysa wants to build a fence around her yard. She needs 160 pieces of wood. She has already purchased 40 pieces. Which equation r
    13·1 answer
  • Someone plz help me !!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!