Answer:
C=14pi cm
A=49pi cm^2
Step-by-step explanation:
1) Circumference of a circle is 2piR and R=7cm
C=2pi(7)
C=14pi cm
2) Area of a circle is piR^2 and R=7cm
A=pi (7)^2
A=49pi cm^2
Answer:
Step-by-step explanation:
Let's start by decoding this :)
First lets do 60% more than 10; 16 (mental math)
Next, lets do 20% less than 16; x/16 = 80/100 (Equation)
After solving by cross multiplying & then simplifying (make sure both denominators are 100), you should get 12.8 as your final #! Hope this helped.
Ok so
t=number of text messsages
p=number of picture messages
total number is 33
t+p=33
if text is 0.18 per pic and picture is 0.45 per text
total cost is 8.3
0.18t+0.45p=8.3
times 100 both sides for ease
18t+45p=830
we now have 2 equations
t+p=33
18t+45p=830
multiply first equation by -18 and add to second equation
18t+45p=830
<span>-18t-18p=-594 +</span>
0t+27p=236
27p=236
divide both sides by 27
p=8.740740740740744
this is impossible becasue you can't send 0.740740740740744 of a message so you did a mistype somewhere
Answer:
8.8 Minutes or 528 Second.
Step-by-step explanation:
↓[ Read Below ]↓
Important Info:
Leslie Ran 3 Mile Race.
2nd Mile = 10% longer than 1st and 3rd Miles took her 24s longer than 2nd Mile
Question to Answer:
Leslie’s total time for the race was 26 minutes how long did the second mile take her?
Explanation/Solution:
Let for first mile, she took x minutes . And second mile took her 10 percent longer, so second mile took
x+ 10/100x = 110/100x=1.1x
And the third mile took 24 seconds longer as compared to second mile .
So third mile took
1.1x+24/60 = (1.1x+0.4) Minutes
And the total time for the race was 26 minutes, that is
x+1.1x+1.1x+0.4=26
3.2x=26-0.4
3.2x=25.6
x= 25.6/3.2 = 8 Minutes
So the first mile took 8 minutes. And therefore second mile took
= 1.1 (8) = 8.8 Minutes
Also Equal to 528 Second.
[RevyBreeze]
Answer:
<u>55 dollars per hour</u>
Step-by-step explanation:
419.25 - 103 = 316.25
316.25 ÷ 5.75 = 55
$55 per hour
hope this helps
