Evaluate 3+11t -9u3+11t−9u3, plus, 11, t, minus, 9, u when t=9t=9t, equals, 9 and u=11u=11u, equals, 11. Hint #11 / 4
Let's substitute \pink t=\pink 9t=9start color #ff00af, t, end color #ff00af, equals, start color #ff00af, 9, end color #ff00af and \blue u=\blue{11}u=11start color #6495ed, u, end color #6495ed, equals, start color #6495ed, 11, end color #6495ed into the expression.
Hint #22 / 4
\phantom{=}3+11\pink {t} -9{\blue{u}}=3+11t−9uempty space, 3, plus, 11, start color #ff00af, t, end color #ff00af, minus, 9, start color #6495ed, u, end color #6495ed
=3+11(\pink {9}) -9{(\blue{11})}=3+11(9)−9(11)equals , 3, plus, 11, left parenthesis, start color #ff00af, 9, end color #ff00af, right parenthesis, minus, 9, left parenthesis, start color #6495ed, 11, end color #6495ed, right parenthesis
Hint #33 / 4
=3+99-99=3+99−99equals, 3, plus, 99, minus, 99
Hint #44 / 4
=3=3equals, 3
please help

answer: i'm not going to give you the answer, but some hints to work it out.

step-by-step explanation: so, if there is a straight line that means that the line angle is 180°. so we subtract the 2 angle measures provided, (15 and 38) from 180. so the answer is 180 - (38 + 15). (you have to solve the equation)

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.

is it like a multiple choice? if so then i need the multiple choice so i can get and understanding on what the answers is so that i can explain it to you