Answer:
x = 9
Step-by-step explanation:
Create an equation:
x = some number
and = add
other number = -15
x + (-15) = -6
remove () using rule
x - 15 = -6
add +15 to both sides
x = 9
18-8 is equivalent given that is a ratio you're talking about
<em>solution</em>
<em> time taken=100secs</em>
<em> distance covered=500m=0.5km</em>
<em>As we know,</em>
<em> speed=distance covered/time taken</em>
<em> =0.5km/100secs</em>
<em> =0.005km/sec</em>
<h2>
<em> </em></h2><h2>
<em> SPEED IS 0.005KM/SEC</em></h2>
Answer:
False
Step-by-step explanation:
If it is a right triangle, the Pythagorean theorem will apply
a^2 + b^2 = c^2
4^2 + 5.05^2 = 6.6^2
16 +25.5025 =43.56
41.5025=43.56
This is not true so it is not a right triangle
Round to the nearest integer
4^2 + 5^2 = 7^2
16+25 = 49
41 =49
This is not true
Answer:
Average call Becomes 15 minutes
Step-by-step explanation:
For Tom's Dorm to not run at a loss for switching to the new phone service the Average length of phone calls must not be less than fifteen (15) minutes.
Mathematically,
If he remains on his current phone line, a call of 15 minutes will cost :
= 0.1 * 15 = $1.5
But if he switches to the new phone line and makes a call for 15minutes, the cost will become :
First 2 minutes = 0.6 * 2 = $1.2
Subsequent 13 minutes will cost = 0.02 * 13 = 0.26
Total call for 15minutes on the new phone line = 1.2 + 0.26 = 1.46.
Since the cost became significantly lesser for 15mins when he switches to the new phone line, then the average calls Tom should make should not be less than 15 minutes.
