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AfilCa [17]
3 years ago
14

Three times a certain number is 21. What is the number?

Mathematics
2 answers:
Goshia [24]3 years ago
7 0

Answer:

The answer is 7

Step-by-step explanation:

an easier way to think of it is 21 divided by 3, which again, is 7.

Hope That Helps!

saveliy_v [14]3 years ago
6 0

Answer:

7

Step-by-step explanation:

Let x be the unknown number

times is multiply and is means equals

3x = 21

Divide each side by 3

3x/3 = 21/3

x = 7

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Complementary events must have a sum of 1.
Bas_tet [7]

This is a true statement.

Consider two events A and B. We say they are complementary if P(A)+P(B) = 1

This means that either event A or event B must happen, since the "1" represents 100% probability. Having a probability of 100% means absolute certainty.

---------

Example:

A = the event it rains

B = the event it does not rain

P(A) = 0.30 = 30% chance of rain

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8 0
3 years ago
Describe the graph of a function g by observing the graph of the base function f ? ​
never [62]

Answer:

Choice 3 is your answer

Step-by-step explanation:

The format of the function when you move it side to side or up and down is

f(x) = (x - h) + k,

where h is the side to side movement and k is up or down.  The k is easy, since it will be positive if we move the function up and negative if we move the function down from its original position.

The h is a little more difficult, but just remember the standard form of the side to side movement is always (x - h).  If our function has moved 3 units to the left, we fit that movement into our standard form as (x - (-3)), which of course is the same as (x + 3).  Our function has moved up 5 units, so the final translation is

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3 years ago
Show two ways to multiply 2/15 x 3/20. Then tell wich way is easier and justify your choice
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The easier way to multiply 2/15 by 3/20 will simply be by multiplying the numerators and denominators.

In order to multiply 2/15 x 3/20, we can simply multiply the numerator and the denominator. This will be

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Also, in order to multiply the fractions, we can change them to decimal first. This will be:

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In conclusion, multiplying the numerators and denominators is easier and faster.

Read related link on:

brainly.com/question/25328409

4 0
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