Answer: The book costs $10 and the pen costs $4✔️
Step-by-step explanation:
Let B the cost of the book and let P the cost of the pen.
Then we know:
The book and the pen cost $14:
B + P = $14 } Equation 1
We also know:
The cost of the book is two dollars more than twice the cost of the pen.
B = 2P + $2 } Equation 2
Now we can substitute the value of B from the equation 2 in the equation 1:
2P + $2 + P = $14
3P = $14 - $2 = $12
P = $12/3 = $4 , cost of the pen
Since we know the value of B from the equation 2, we can calculate B:
B = 2P + $2 = 2x$4 + $2 = $8 + $2 = $10 , cost of the book
Answer: The book costs $10 and the pen costs $4✔️
<h3>Verify </h3>
We can substitute these values in equations 1 and 2 and check the results:
B + P = $14 } Equation 1
$10 + $4 = $14 ✔️check!
B = 2P + $2 } Equation 2
$10 = 2x$4 + $2 = $8 + $2 = $10 ✔️check!
<h2><em>Spymore</em></h2>
Answer:
There is 9 total combinations.
Step-by-step explanation:
First term is n=1
1(1-1)-4
1(0)-4
-4
first term is -4
2nd term
n=2
2(2-1)-4
2(1)-4
2-4
-2
2nd term is -2
3rd term
n=3
3(3-1)-4
3(2)-4
6-4
2
3rd term is 2
4th term
n=4
4(4-1)-4
4(3)-4
12-4
8
4th term is 8
the first 4 terms are -4, -2, 2, 8
Answer:
The answer should be BAD
Step-by-step explanation:
They are all parallel from each other and will never touch