Answer:
Step-by-step explanation:
x + y = 25 ...........................(1)
{4x + 2y =64} / 2 divide the equation by 2
2x + y = 32 ........................(3)
Step Two
subtract (1) from (3)
2x + y = 32
x + y = 25
x = 7
Therefore from equation 1 we get x + y = 25
but x = 7
7 + y = 25 Subtract 7 from both sides.
y = 25 - 7
y = 18
Check
4*x + 2*y = 64
4*7 + 2*18 =? 64
28 + 36 = ? 64
64 = 64
The checks out to be the right answer.
Answer:
Hello!!! Princess Sakura here ^^
Step-by-step explanation:
It's false because if there is an even amount of negative numbers the product will always be even.
Answer:
7m
Step-by-step explanation:
Given
- 9(- 5k + 3m) + 9m - 5(- 5m + 9k) ← distribute both parenthesis
= 45k - 27m + 9m + 25m - 45k ← collect like terms
= 7m
Answer:
c= 25+0.05m
Step-by-step explanation:
Given that,
The phone company charges a flat rate of $25 per month. In addition they charge $0.05 for each minute of service.
$25 is fixed here and charge $0.05 for each minute of service.
We need to find the equation that can be used to find the monthly charge based upon the number of minutes (m) of service each month.
c= 25+0.05m
Hence, this is the required equation.
You need to add -9x+7x which is -2x and 13-5 is 8 so the answer is 6 because 8-2=6 or -2+8=6 :) hope this helped