Maths Questions..who answers first will get brainliest. I am being timed.. Divide. 6÷ 2/3
Add 3 hours 40 minutes and 2 hours 50 minutes
Convert 720 minutes into hours and minutes
7 hours 35 mins before 7:20 p. m.
School’s founders' day was on 21 November. Practice started 45 days before. When did it start?
Arun returned from his 21 days holiday on 10 th July. When did his holiday begin?

1. 9

2. 6 hours 30 minutes

3.  12 hours

4. 11:45am

5. October 7th

6. june 19th

the function makes a strait line horizontally with no x intercept but a y intercept at 9.

hello!

to begin with, we're given that on earth, a rock weighs 20 pounds, and while on jupiter, that same rock weighs 42 pounds. now, we're trying to find the weight of a rock that weighs 10.5 pounds on earth, on jupiter.

to solve this, first, set up a proportion, cross-multiply, and solve it algebraically.

setting up the proportion is the hardest and the most confusing part of the problem, but it's simple.

if on earth, the rock weighs 20 lbs, and on jupiter it weighs 42 lbs, our first part of our proportion is 20/42 lbs. the second part has to be equal to each other. this means that 10.5 has to be on the numerator of the fraction, and x, the value we're trying to find, has to be on the denominator. remember that the rock weighs 10.5 lbs on earth, and we're trying to find the weight of it on jupiter (which is x).

20/42 = 10.5/x

next, you would cross-multiply.

20x = 42(10.5)

20x = 441

now, solve it algebraically by using division.

x = 22.05 lbs

this can be rounded to 22.1 lbs.

therefore, the weight of the rock on jupiter is 22.1 lbs, the fourth choice.