How many integers between 160 and 279 inclusive, are divisible by 7?
Answers
Answer:
17
Step-by-step explanation:
We can put this as an AP (arithmetic progression).
The first number, after 160, that is divisible by 7 is:
161
The last number before 279 that is divisible by 7 is:
273
We can use the formula:
Where
tn is the nth term [here we take the last one, 273
a is the first term [161]
d is the common difference [7]
and n is the number of terms, we are trying to find this.
Substituting we get:
Hence, there are 17 integers
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Answers
Answer: your answer is perfect.
Step-by-step explanation:
Answers
Answer:
5v/9−5/9
Step-by-step explanation:
If its right can i plz have brainliest :)
Answers
Answer:
14.6% probability that a randomly chosen person will test positive
Step-by-step explanation:
We have these following probabilities:
10% probability that a randomly selected person has the disease.
If a person has the disease, 92% probability of testing positive.
100-10 = 90% probability that a person does not have the disease.
If a person does not have the disease, 100-94 = 6% probability of testing positive.
What is the probability that a randomly chosen person will test positive
92% of 10% or 6% of 90%.
Then
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14.6% probability that a randomly chosen person will test positive
4xy2
24xy
24xy2
Answers
The greatest common factor of 4xy² and 20x2y^4 is: 4xy².
What is the Greatest Common Factor?
Greatest common factor of a set of terms is the factor that all terms in the set share together.
Given:
4xy² and 20x2y^4
4xy² can divide both terms, meaning both terms share a factor.
Therefore, the greatest common factor of 4xy² and 20x2y^4 is: 4xy².
Learn more about greatest common factor on:
Answers
Answer:
15
Step-by-step explanation:
Int angle : Ext angle : Total
13 : 2 : 15 (13+2)
We know that, int angle + ext angle = 180
Let's introduce a variable x to help solve this ratio
Our ratio is now - 13 x : 2 x : 15x
Use your total ratio and equate it to your total angle size
15 x = 180
x = 180 / 15 = 12
So,
Int angle = 13 x = 13 (12) = 156
Ext angle = 2 x = 2 × 12 = 24
Now, use this formula.
Ext angle = 360 / n
(n represents your number of sides)
24 = 360 / n
n = 360 / 24 = 15