Answer:
75% means a c if you are in the U.S
Two out of five means you got a 40%
1 out of two means 50%
60% is a D
If you got 1 wrong on a test that had 5 questions you did well and it is 80 percent.
Step-by-step explanation:
Answer:
sir, this is a english app, search a spanish app
señor, esta es una aplicacion en ingles, busque una en español
Step-by-step explanation:
Brainly.lat
Answer:
(2x-7)(x-3)
Step-by-step explanation:
Answer:
x = -8
Step-by-step explanation:
y = 3x + 14
2x - 3y = -14
So, what is the substitution? Y of course, this is because y is equal to 3x + 14.
2x - 3 (3x + 14) = -14
Multiply 3 with the numbers in the parentheses.
2x - 9x + 42 = -14
So you maybe be wondering why it is a negative 7 instead of subtracting 9 with 2. Using PEMDAS, we always read from left to right. So it is basically 2 -9 and you get -7.
-7x + 42 = -14
Then subtract 42 from both sides.
-7x + 42 - 42 = -14 - 42
Simplify
-7x = -56
Divide 7 by both sides.
-7x / 7 = -56 / 7
x = -8
And you might ask, why we get x instead afterwards. This is because both -7 and 7 cancel each other out leaving us with x.
