What percent of 20 is 40?<br> A 50%<br> B 75%<br> C 100%<br> D 200%

Can I get some help with these questions, please?

dangina [55]

17. The letter is J

The letter appears 3 times

18. Lefthanded students = 4 students

<h3>How to determine the factors</h3>

17. We have that 1/4 of the months of the year start with the same letter

It is important to note that:

January, June and July all start with the same letter

The letter is J

The letter appears 3 times

18. Total number of students = 24

5/ 6 are right handed

Right handed students = 24 × 5/ 6 = 4 × 5 = 20 students

Lefthanded students = 24 - righthanded students

Lefthanded students = 24 - 20

Lefthanded students = 4 students

Thus, we can see that the letter that appear in 3 months of the year is J

Learn more about word problems here:

brainly.com/question/13818690

#SPJ1

5 0

2 years ago

According to the United Nations, in the year 2002, the population of the world was 6.1 billion people and was growing at an annu

zmey [24]

Answer:

(a) 6.2843 billion

(b) 6.8716 billion

Step-by-step explanation:

Since there is a constant growth rate of 1.5% per year, and the population in 2002 was 6.1 billion people. The general equation for the total world population, in billions, after 2002 is:

$P(t) = 6.1*(1+0.015)^t$

With t being the time, in years, after 2002.

a) What was the population in 2004?

$t=2004-2002=2\\P(2) = 6.1*(1.015)^2\\P(2) = 6.2843 \ billion$

b) What was the population in 2010?

$t=2010-2002=8\\P(8) = 6.1*(1.015)^8\\P(8) = 6.8716 \ billion$

3 0

3 years ago

Someone please help. This is Delta Math

Svetlanka [38]

Answer:

uyt6?

Step-by-step explanation:

6 0

2 years ago

The leg of a right triangle is four units in the hypotenuse is nine units what is the length in units of the other leg of the tr

lianna [129]

Answer:

Square root of 65 units.

Step-by-step explanation:

Length of the other leg = sqrt(9^2 -4^2) (By Pythagoras),

= sqrt(81-16)

= sqrt65

6 0

2 years ago

The LCM of two numbers is 36 their GCD is 3 one of the number is 9 find the other number

Aleks04 [339]

Answer:

12

Step-by-step explanation:

The LCM of 9 and x = 36

The GCD is 3, that means the number has to be divisible by 3 as well.

We can look at all the factors of 36, and see which numbers fit the description

36 = 1, 2, 3, 4, 6, 9, 12, 18, 36

1: Does not have a GCD of 3

2: Does not have a GCD of 3

3: Has a GCD of 9, but LCM is 3, not 36

4: Does not have a GCD of 3

6: Has a GCD of 3, but LCM is 18, not 36

9: Number is given

12: Has GCD of 3, and LCM is 36

18: Has GCD of 9

36: Has GCD of 9

The only number that works is 12, with a GCD of 3, and an LCM of 36

-Chetan K

6 0

2 years ago

What percent of 20 is 40? A 50% B 75% C 100% D 200%