Answer:
x∈ (-1, ∞)
Step-by-step explanation:
<u>Solution of the inequality:</u>
- −2(3x − 1) < 8 ⇒ Divide both sides by -2, this will change inequality
sign to opposite
- 3x - 1 > -4 ⇒ add 1 to both sides
- 3x > -3 ⇒ divide both sides by 3
- x > -1 ⇒ answer
- x∈ (-1, ∞) ⇒ answer as set
Sarah buys 4 first class tickets ad 9 coach tickets For the trip.
<h3>Equation</h3>
Equation is an expression which is used to show the relationship between two or more variables and numbers.
Let x represent the number of first class ticket and y represent the boxes of coach tickets
Sarah a total of 13 people took the trip. Hence:
She used her total budget which was $10,970. Hence:
Solving equations 1 and 2 simultaneously gives:
x = 4, y = 9
Sarah buys 4 first class tickets ad 9 coach tickets For the trip.
Find out more on equation at: brainly.com/question/13763238
Answer: 4x² + 5x + 3
<u>Step-by-step explanation:</u>
Answer:
Step-by-step explenation . First you know that the amount of time she trained for the marathon is 125% of the time she trained last month. We also know that she trained 80 hours last month. And the question wants us to know how many hours she trained this month. So we do 100% =x
And 125% = 80 so we cross multiply it becomes 100 X 80 =125x witch eaquals to 8,000 divided by 125 witch is 64. So the final Answer is 64 . IF I AM CORRECT PLEASE MARK BRAINLIEST.
To find the answer,we can first find the flour the baker left after making bread by setting an equation:
Let the orginal amount of flour be y
2/5y = 16
y = 16×5/2
y = 80/2
y = 40
There is 40lb of flour originally,after using 16 lb to make bread,he had:
40-16
=24lb
We can then find the muffin he made by dividing the answer above by 2/3:
24÷2/3
= 24 × 3/2
= 36
Therefore, he made 36 batches of muffins.
Hope it helps!