Answer:
x equals -5. I suggest using the app Socratic it helps.
<h3>20 subtracted from three times a number is 6 more than the number. Then the number is 13</h3>
<em><u>Solution:</u></em>
<em><u>Given statement is:</u></em>
20 subtracted from three times a number is 6 more than the number
We can translate the sentence into algebraic expression
Let "a" be the unknown number
Then,
20 subtracted from three times "a" is 6 more than "a"
Which means,
3a - 20 = 6 + a
3a - a = 6 + 20
2a = 26
Divide both sides by 2
a = 13
Thus the number is 13
The answer is 90 + 45 because BOC is a right angled triangle where angle BOC is 90 and angle BOK is 45 because 90 ÷2. A OK Is a right angled triangle so angle AOB is 90 as well so to find angle AOK we plus 90 and 45 which is 135 degrees.
Answer:
Yes I can :O
Mean: About 11.87
Median: 11
Mode: 10
Step-by-step explanation:
Mean: Add up all the numbers and divide by the total number of numbers
<em>*deep breath in haha*</em>
6+7+7+8+8+9+9+9+50 (the 10s)+33 (the 11s)+12+12+12+12+13+14+14+16+16+17+17+18+18+19=356
356 (total) / 30 (number of numbers) = 11.8666666666666666666666 etc = 11.87
Median: With all the numbers in order, the middle number (if there are two add them together and divide by 2)
Not much to show, just mark them off starting from the outside getting inside, you end up with 11!
- See attached
Mode: Data value that occurs most often, in this case we can see that 10 happened the most
Hope this helps, have a nice day! :D
Answer:
131 minutes, an = 15 + (n - 1)(4)
Step-by-step explanation:
each time she is increasing by 4 minutes
we can write this equation like this since we have the difference and the first part:
an = 15 + (n - 1)(4)
note
"an" (or ace of n)'s n is in subscript and is written just like a superscript but on the bottom
we can plug in this equation to find ace of 30 (a30)
15 + (30 - 1)(4)
15 + 29*4
116 + 15
a30 = 131
