Answer:
One pen costs $2
Step-by-step explanation:
The 7 mechanical pencils costed $5.25, so $13.25 minus $5.25 is $8; and $8 divided by $4 is $2. So each pen costs 2 dollars.
Equation: 4n = 13.25 - 5.25
The variable n stands for the cost of one pen.
I hope this helps! I'm pretty confident in this answer, myself so I think you'll do great!
Given:
4 1/7 * 3 3/5
4 1/7 = (4*7)+1/7 = 29/7
3 3/5 = (3*5)+3/5 = 18/5
29/7 * 18/5 = 29 * 18 / 7 * 5 = 522 / 35 = 14.91
Simplified expression.
4 x 3 1/2
3 1/2 = (3*2)+1/2 = 7/2
4 * 7/2 = 4*7 / 2 = 28 / 2 = 14
It is a close estimate. Actual: 14.91 vs Estimate: 14
The time that will be taken for Daniel to swim to the boat ramp will be 3.34 minutes.
<h3>How to calculate time taken</h3>
Let the distance be x.
Based on the information given, the calculation will be:
Sin 53° = 400/x
0.7986 = 400/x
x = 500 feet
Time = Distance / Speed
Time = 500/150 = 3.33 minutes.
The distance of the boat ramp from the campsite will be:
Cos53° = y/500
0.60 = y/500
y = 300 feet.
Distance will be:
= 1600 - 300 = 1300 feet
The minutes that it takes him to jog from the boat ramp to the campsite will be:
Distance = 1300 feet
Rate = 4 miles per hour = 352 feet per minutes
Time = Distance / Rate
Time = 1300/352 = 3.69 minutes
The total time taken will be:
= 3.33 + 3.69
= 7.02 minutes
Learn more about time taken on:
brainly.com/question/17146782
Step-by-step explanation:
if we simply add 1 to numerator and denominator (top and bottom of the fraction), we get a fraction that is bigger than the original fraction and smaller than the fraction that added 2 to numerator and denominator.
so, my choice would be
4/5
5/6
6/7
7/8
8/9
9/10
10/11