Answer:
1/2
Step-by-step explanation:
I think so im not sure tho so sorry if its incorrect
Answer:
x=2
Step-by-step explanation:
We first distribute this. So we have 15x-10 = 10 + 6 +2x.
Then we move the variable to one side and have 13x= 10+10+6
Simplify to get 13x = 26.
x=2
Answer:
second card = 4 third card = 10 fourth card = 14
Step-by-step explanation:
<h3>1.To find the third card:</h3>
18+2=20
20÷2=10.
<h3>2.To find the second card:</h3>
10-2=8
8÷2=4
<h3>3.To find the fourth card:</h3>
10+4=14
Answer:
-2
Step-by-step explanation:
Let's flip it.
1-3/x=1
1-3= -2
-2/x=1
What can get us to 1 from -2 from dividing?
Try doing it from multiplying. -2x1= your answer!
I really hope this helped, im sorry if it didn't!
Answer: the number of physics textbook sold in the week is 138
the number of maths textbook sold in the week is 69
Step-by-step explanation:
Let x represent the number of physics textbook sold in the week.
Let y represent the number of maths textbook sold in the week.
A textbook Store sold a combined total of 207 physics and math textbooks this week. This means that
x + y = 207 - - - - - - - - - - - - 1
The number of physics textbooks sold was two times the number of math textbook sold. This means that
x = 2y
Substituting x =2y into equation 1, it becomes
2y + y = 207
3y = 207
y = 207/3 = 69
x = 2 × 69
x = 138