It will take fran 0.67 hours to swim 1.8 mi upstream
it will take fran 0.25 hours to swim 1.8 mi downstream
<u>Step-by-step explanation:</u>
Fran's speed in still water= 5mph
speed of the river=2.3 mph
upstream journey
speed while swimming upstream= speed in still water-speed of the river=5-2.3=2.7mph
distance to be traveled upstream=1.8 miles
Time taken to swim= upstream distance/upstream speed
=1.8/2.7
=0.67 hours
Fran will take 0.67 hours to swim upstream
downstream journey
speed while swimming downstream= speed of Fran+speed of the river
=5+2.3=7.3mph
distance to be travelled downstream=1.8 miles
time taken=downstream distance/ downstream speed
=1.8/7.3=0.25 hours
Answer:
56
Step-by-step explanation:
8×14= 112
112÷2=56
Answer:
336
Step-by-step explanation:
7x48=
7(8)= 56
7(4)+5= 33
7(48) = 336
Answer:
The answer to your question is she bought 79 large cups and 76 small cups.
Step-by-step explanation:
Data
small cups = s = $1.25
large cups = l = $2.15
total number of cups = 155
total money = $265
Process
1.- Write 2 equations to solve the problem
s + l = 155
1.25s + 2.15l = 265
2.- Solve by substitution
s = 155 - l
1.25(155 - l) + 2.15l = 265
193.75 - 1.25l + 2.15l = 265
-1.25l + 2.15l = 265 - 193.75
0.9l = 71.25
l = 71.25/0.9
l = 79
s = 155 - 79
s = 76
The graph which correctly shows the point A as the sum of the complex numbers z₁ and z₂ is graph number 4.
<h3>What is complex number?</h3>
A complex number is the combination of real and imaginary number. In a complex number, real part and imaginary part of the number are written together. For example,
a+b<em>i</em>
Here, (a) is the real part while (b) is the imaginary part.
To add the two complex number on the graph, the addition as transition method is used.
In this one complex number is translated to the tip of the other graph. The resultant of addition is equal to the distance between them.
On the graph 4, the transition method of addition is applied.Thus, the graph which correctly shows the point A as the sum of the complex numbers z₁ and z₂ is graph number 4.
Learn more about the complex number here;
brainly.com/question/2218826
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