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
gtnhenbr [62]
3 years ago
11

Use equivalent ratios to find the unknown value. 2 The unknown value is

Mathematics
1 answer:
Travka [436]3 years ago
8 0

Answer:

Unknown number = 36

Step-by-step explanation:

Equivalent ratio means,

\frac{x_1}{y_1}=\frac{x_2}{y_2}

If x_1=2, y_1=9 and x_2=8,

\frac{2}{9}=\frac{8}{y_2}

By cross multiplication,

2 × y₂ = 8 × 9

2y₂ = 72

\frac{2y_2}{2}=\frac{72}{2}

y₂ = 36

Therefore, missing number in the denominator of the fraction will be 36.

You might be interested in
Which answer describes the calculations that could be used to solve this problem? chelsea bought 6 tickets for the county fair.
timurjin [86]
B. is the correct statement.

Hope that helps you
4 0
4 years ago
Point A (12, 4) is the image of point A(3, 1) under a dilation with respect to the origin. What is the constant of dilation?​
nordsb [41]

Answer:

We conclude that the constant of dilation is: 4

Step-by-step explanation:

We know that when an object is dilated by a scale factor, it gets reduced, stretched, or remains the same, depending upon the value of the scale factor.

  • If the scale factor > 1, the image is enlarged
  • If the scale factor is between 0 and 1, it gets shrunk
  • If the scale factor = 1, the object and the image are congruent

The coordinates of the image point can be determined by multiplying the coordinates of the original point by a certain scale factor.

Given the point A'(12, 4) is the image of A(3, 1).

It is clear that the image point A'(12, 4) is enlarged 4 times of the original point A(3, 1).

It means the image point A'(12, 4) is determined when the original point A(3, 1) is dilated by a scale factor of 4.

i.e.

A(3, 1) → A'(4(3), 4(1)) → A' (12, 4)

Therefore, the rule of dilation by a scale factor 4 is:

P(x, y) → P'(4x, 4y)

Hence, we conclude that the constant of dilation is: 4

7 0
3 years ago
HELP PLEASE I LITERALLY NEED HELP
shtirl [24]

Answer:

1 Down - Dating Fossils

3 Down- Fossil Layers

5 Down- Pangea

2 Across- Index Fossil

4 Across- Mesozoic Era

6 Across- Mass Extinction

7 Across- Time Scale

8 Across- Trilobite

Step-by-step explanation:

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 last one Please answer asap im still crying
Anna007 [38]

Answer:

He has 12 ten dollar bills

Step-by-step explanation:

Let t = number of 10 dollar bills

f = number of fifty dollar bills

t+f = 25  since he has 25 bills

solving for f

f = 25 -t

Then we know he has 770 dollars

10t+50f = 770

Using f = 25-t in the above equation

10t + 50 ( 25-t) = 770

Distribute

10t+ 1250 - 50t = 770

Combine like terms

-40t+1250 = 770

subtract 1250 from each side

-40t - 1250-1250 = 770-1250

-40t = -480

divide each side by -40

-40t/-40 = -480/-40

t =12

He has 12 ten dollar bills

5 0
4 years ago
Other questions:
  • find three consecutive positive odd integers such that the product of the first and the third is 4 less than 7 times the second
    10·1 answer
  • At summer camp, some people collected pine cones.
    9·2 answers
  • What result(s) when two different alleles both appear in the phenotype?
    8·1 answer
  • Graph the function y = 8 –. Which is the best approximation of a point on the function? (4.4, 3.421) (4.6, 4.232) (5.2, 4.025) (
    8·1 answer
  • 1. Which formula defines the sequence f(1)=2, f(2)= 6, f(3)= 10, f(4)= 14, f(5)= 18?
    13·1 answer
  • There are 6 people at a party. If every person has to shake everyone's hand exactly once, how many handshakes is there all toget
    11·2 answers
  • How many meters are in 3.7 km?
    14·1 answer
  • In a Gallup poll, 26.6% of 5000 people reported a Body Mass Index (BMI) greater than 30, which is classified as obese. The 5000
    12·1 answer
  • Molly buys two boxes of crackers each box has four packages of crackers in it Molly by the total of 80 crackers which equation a
    8·1 answer
  • Explain how to do this and provide an answer.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!