Answer:
750 minutes
Step-by-step explanation:
Let the number of minutes be represented as x
1 cent = 0.01
Beetle cellular offers cellular phone service for 39.95 a month plus one cent a minute.
$39.95 + 0.01x
Salamander digital offers cellular phone service for 9.95 a month plus five cents a minute.
$9.95 + 0.05x
How many minutes would a person need to use a month for beetle cellular to cost the same as salamander digital?
This is calculated as:
Beetle cellular = Salamander digital
$39.95 + 0.01x = $9.95 + 0.05x
Collect like terms
$39.95 - $9.95 = 0.05x - 0.01x
$30.00 = 0.04x
x = $30.00/0.04
x = 750 minutes
A person need to use 750 minutes a month for beetle cellular to cost the same as salamander digital.
Answer:
x = 51
Step-by-step explanation:
the mean is calculated as
mean = 
here mean = 11.5 , then
= 11.5 ( multiply both sides by 4 to clear the fraction )
- 5 + x = 46 ( add 5 to both sides )
x = 51
Answer:
X=140
Step-by-step explanation:
<em>Firstly, any Quadrilateral has a total sum of its angle equal to 360 degrees</em>
<em>The attachment you are showing us shows that we already know two angles</em>
<em>(70)&(60) degrees. I am assuming the line DC is a tangent, so angle ADC must be 90 degrees since a full angle on a tangent is equal to 180 degrees and there is 90 from the other side (180-90=90). Now we know 3 angles and what you have to do is find X so that when you add them all up they make a sum of 360. </em>
<em />
X+70+60+90=360
X=360-70-60-90
X=140
The unit price of Brand A pencil is 0.312 and unit price of Brand B pencil is 0.356. Brand A pencil is better to buy based on unit price
<u>Solution:</u>
Given that
Brand A has packed 24 pencils for 7.49
Brand B has packed 28 pencils for 9.97
Need to find the unit price of pencil for each brand.
For Brand A, price of 24 pencils = 7.49
So price of 1 pencil of brand A 
For Brand B, price of 28 pencils = 9.97
So price of 1 pencil of brand B 
As price if 1 pencil of brand A that is 0.312 is cheaper than 1 pencil of brand B that is 0.356
Hence good deal is to buy Brand A pencil
Answer: 7.45 was used as the value due to no option
Step-by-step explanation
Since options are not available, The best value he could have rounded up to nearest tenth to give 7.5 and nearest whole number to give 7 is 7.46.
This value is 7.5 to the nearest tenth due to the last value which is greater than 5 will round the value of 4 to 5 to make 7.5.
Since the value of 4 in 7.45 is not up to 5, the value will be 7 to nearest whole number.
