Have you learned PEMDAS? (Parenthesis, exponents, multiplication, division, addition, subtraction). That is what I am going to do here.
The first parenthesis, let's solve. 7*10=70-5=65
The second parentheisis: I am assuming the negative sign is a typo, and this answer will be off if it is not. Sorry. 5*10=50
65*50=3250
I hope this helps, and let me know if you need further assistance.
Answer:
x = 2, y = 1
Step-by-step explanation:
- 7x + 5y = 19
- -7x - 2y = -16
Use the elimination method to solve the system of equations. Add the terms from top to bottom. 7x and -7x cancel out.
0 + 3y = 3
Divide both sides by 3.
y = 1
Substitute 1 for y into the first equation.
7x + 5(1) = 19
7x + 5 = 19
Subtract 5 from both sides.
7x = 14
Divide both sides by 7.
x = 2
The cost of each of the 15 tubes given a total cost of tubes to be $277.50 is $18.50
Given:
Total cost of rubes = $277.50
Total number of tubes = 15
<em>Cost of each tube = Total cost of rubes / Total number of tubes</em>
= $277.50 / 15
= $18.50
Therefore, the cost of each of the 15 tubes given a total cost of tubes to be $277.50 is $18.50
Learn more about cost of items:
brainly.com/question/13901870
Answer:4,670,000,000
Step-by-step explanation:
You just have to multiply 467,000,000 by 10
Do you want the scientific notation?
If so, the answer would be 
