Package A is less expensive for Zach to send 250 multimedia texts each month.
<u>Step-by-step explanation:</u>
Given that,
Zach plans to send 250 multimedia texts each month.
Package A charges $0.25 per multimedia text with no monthly fees.
Package B charges $0.20 per multimedia text, but has a $15 monthly fee.
We need to find out which package is less expensive for Zach to add the plan.
<u>The cost of 250 multimedia texts by package A :</u>
⇒ Number of texts × cost per text
⇒ 250 × 0.25
⇒ 62.5
∴ The package A charges $62.5 for 250 multimedia texts.
<u>The cost of 250 multimedia texts by package B :</u>
⇒ (Number of texts × cost per text) + monthly fee
⇒ (250 × 0.20) + 15
⇒ 50 + 15
⇒ 65
∴ The package B charges $65 for 250 multimedia texts.
The Package A charges $62.5 which is less than package B charge of $65.
Hence, package A is less expensive.
speed of current is 1.5 mi/hr
Answer:
let the rate in still water be x and rate of the current be y.
speed down the river is:
speed=distance/time
speed=14/2=7 mi/h
speed up the river is:
speed=(14)/(3.5)=4 mi/hr
thus total speed downstream and upstream will be:
x+y=7...i
x-y=4.......ii
adding the above equations i and ii we get:
2x=11
x=5.5 mi/hr
thus
y=5-5.5=1.5 mi/r
thus the speed in still waters is 5.5 mi/hr
speed of current is 1.5 mi/hr
Answer:
- 8 3/4
- 2, 3
- 4 1/2, 11 1/4
- 9 3/4, 16 1/4
- Y/B = 2/3
Step-by-step explanation:
<h3>a)</h3>
The first line is simply the sum of the two given numbers.
3 1/2 +5 1/4 = (3+5) +(2/4+1/4) = 8 3/4
__
To find values on the remaining lines, it is convenient to find the ratios of the numbers involved. The ratio of yellow to blue is ...
Y/B = (3 1/2)/(5 1/4) = (7/2)/(21/4) = (7/2)(4/21) = 2/3
Then ...
Y : B : total = 2 : 3 : 5
This tells you the numbers on the second line are ...
Y = 2; B = 3
__
The value for B on the third line is the basic ratio number multiplied by (6 3/4)/3 = 2 1/4. Then the other two numbers are ...
Y = 2(2 1/4) = 4 1/2
total = 5(2 1/4) = 11 1/4
__
The value for Y on the fourth line is the basic ratio number multiplied by (6 1/2)/2 = 3 1/4. Then the other two numbers are ...
B = 3(3 1/4) = 9 3/4
total = 5(3 1/4) = 16 1/4
_____
<h3>b)</h3>
The equation is the one we used to find the values on the second line:
Y/B = 2/3
Answer:
Step-by-step explanation:
They are about 3 meters away from each other
and the correct area is 15.5-12 and the correct answer is 3.5 meters apart
