Solve each system of equations below by the substitution method. And show your work.

11. x-y=3

6x+4y=13

657 passengers paid £247 each for a cruise on a small cruise ship. Estimate the amount paid by the passengers in total

If nataly has 2 eggs nd lex has 2 more than nataly how many eggs does lex have?

This graph shows the results of 150 people surveyed. How many people completed college?

Maya is on the swim team. Each day she swims 800 m. How many kilometers does she swim each day?

I can't seem to log in even though I have a membership. Anyone else having issues

If you add a constraint to an optimization model, and the previously optimal solution satisfies the new constraint, will this solution still be optimal with the new constraint added?

These are the first six terms of a sequence with a1= - 3: - 3, 8, 19, 30, 41, 52, ... Find a recursive formula for this sequence that is valid for n>1. Write your answer in simplest form.

180 people filled out a survey about their favorite color. 95 of the respondents were female. 21 males responded that their favorite color is red.

Kristin's three-year old sister is trying to arrange pink and red Starbursts in rows. She has 360 pink Starbursts and 150 red Starbursts.

A plane is flying at 31,348 feet. It needs to rise to 37,000 feet in two stages. In stage 1, it rises 5% of its initial altitude of 31,348 feet. In stage 2, it rises at a rate of 140.3 feet per minute.