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
weqwewe [10]
2 years ago
13

6) A geologist collects rocks. He has three types, sedimentary, metamorphic and

Mathematics
1 answer:
rodikova [14]2 years ago
7 0

Answer:

3:5

Step-by-step explanation:

s:m = 2:3

m:i = 9:10

convert m to same number so they are comparable

s:m = 6:9   (multiple so the ratio is still the same as 2:3)

m:i = 9:10 (the same thing as before)

s:i = 6:10

s:i = 3:5 (simplify)

You might be interested in
Which triangle congruence is this?<br> SSS<br> SAS<br> ASA<br> AAS<br> HL
MrRissso [65]

Answer:

HL

Step-by-step explanation:

The Hypotenuse-Leg Theorem states that two right triangles are congruent if and only if the hypotenuse and a leg of one right triangle are congruent to the hypotenuse and a leg of the other right triangle.

7 0
3 years ago
How would you solve this?
finlep [7]

Answer:the probability that a pensioner catches a flu is 0.3 or \frac{3}{10}

Step-by-step explanation:

<u>Data:</u>

a) Pensioners who have had a flu jab = \frac{3}{5}

b) Pensioners who did not had a flu jab = 1 - \frac{3}{5} = \frac{2}{5}

For the first pair of arrows: a is the probability of the upper arrow and b is the probability of the lower arrow.

<em>If pensioner have had a flu jab, the probability of catching flu is \frac{1}{30}</em>

Data:

c) Catching flu = \frac{1}{30}

d) Not catching flu = 1 - \frac{1}{30} = \frac{29}{30}

The second pair of arrows on the top: Top arrow is c and bottom arrow is d

<em>If pensioner did not have a flu jab, the probability of catching flu is \frac{7}{10}</em>

<u>Data:</u>

e) Catching flu = \frac{7}{10}

f) Not catching flu = 1 - \frac{7}{10} = \frac{3}{10}

The second pair of arrows on the bottom: Top arrow is e and bottom arrow is f.

Q) Probability pensioner catches a flu

P(catches the flu given that he had the flu jab) + P(catches the flu given that he did not have the flu jab)

(\frac{3}{5} x \frac{1}{30}) + (\frac{2}{5} x \frac{7}{10} )

= 0.02 + 0.28

= 0.3

Therefore, the probability that a pensioner catches a flu is 0.3 or \frac{3}{10}

Keyword: Probability

Learn more about probability at

  • brainly.com/question/4021035
  • brainly.com/question/4655616

#LearnwithBrainly

5 0
3 years ago
The sum of the deviations about the mean always equals _________.
Cloud [144]
It always equal 0 
hope this helps :)                                                            
5 0
3 years ago
Help with math earn 10 points
Luda [366]

Answer:

The answer is 15 Shirts

Step-by-step explanation:

We want to know what x is going to equal that makes the equation the same.

First, I make the euations equal to each other by substituting the y -->

7x + 50 = 10x + 5

Then, I combine my similar terms --> 45 = 3x

After that, I divide by 3 to get x on its own --> \frac{45}{3} =\frac{3x}{3} --> 15 = x

This means that after 15 Shirts are sold, the costs for both companies are the same.

6 0
3 years ago
Read 2 more answers
Sam solved the following problem:
Talja [164]

Answer:

 Sam made it -24 versus 24  (29-5=24  not -24)

(Sam failed to flip the inequality)

Step-by-step explanation:

-4x + 5 > 29

Subtract 5 from each side

-4x+5-5 > 29-5

-4x > 24      Sam made it -24 versus 24  (29-5=24  not -24)

Divide by -4  Remember to flip the inequality

-4x/-4 < 24/-4   (Sam failed to flip the inequality)

x < -6

7 0
3 years ago
Read 2 more answers
Other questions:
  • Round 1.086 to the nearest whole number
    14·2 answers
  • If you wish to show that two triangles are similar, which statement(s) is correct? You may choose more than one correct answer.
    15·2 answers
  • Find the vertex, focus, directrix, and focal width of the parabola. (5 points)
    5·1 answer
  • What is the area of a triangle with the following dimensions: Base: 4 inches Height: 9 inches?
    11·2 answers
  • Match the system of the equation to the correct description of its solutions
    9·1 answer
  • Is every trapezoid a rectangle
    6·2 answers
  • Convert the following fraction to a decimal: 21/35
    8·2 answers
  • The length of time the Sun is above the horizon is called the
    8·1 answer
  • Hitung nilai x bagi persamaan <br>Calculate the value of x for the equation ​
    13·2 answers
  • Viktoria knows that it is impossible to remove a red marble from her bag that has no red marbles in it. if she reaches into the
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!