If the number is x, then 3 times x -20 >10 and 3x-20>10. Adding 20 to both sides, we get 3x >30 and by dividing by 3 we get x >10
Answer:
- The first option: $265.05
Step-by-step explanation:
<h3>Option 1</h3>
<u>Payment as sequence:</u>
<u>This is an AP with:</u>
- The first term a = 11.75
- Common difference d = 0.35
- Number of terms n = 18
<u>Find the sum of the first 18 terms:</u>
- S₁₈ = (a + a₁₈)*18/2 = (a + a + 17d)*9 = (11.75*2 + 17*0.35)*9 = $265.05
<h3>Option 2</h3>
Flat rate $14.50 per hour
<u>The sum is:</u>
<u>Compared, we see the first option pays more:</u>
the ratio is 24:30
or the simplified version is 4:5
Answer: 24 fliers
Step-by-step explanation:
he had 80 to begin with so last week if he posted 1/4 of them he would have 3/4 left and
3/4 * 80 = 60
and then if he posts 3/5 of the 60 remaining fliers he would have 2/5 left over and
2/5 * 60 = 24
so your answer is 24 fliers