Answer:
I. x = -1
II. y = 1
Step-by-step explanation:
Given the following algebraic expressions;
9x + 10y = 1 .......equation 1
9x - 6y = -15 ......equation 2
To solve using the elimination method, we would subtract eqn 1 from eqn 2.
(9x - 9x) + (-6y - 10y) = (-15 - 1)
0x - 16y = -16
-16y = -16
16y = 16
y = 16/16
y = 1
Next, we would find the value of x;
From eqn 1;
9x + 10y = 1
Substituting the value of y, we have;
9x + 10(1) = 1
9x + 10 = 1
9x = 1 - 10
9x = -9
x = -9/9
x = -1
Answer:
x<3
Step-by-step explanation:
5(3-x)>-2x+6
15-5x>-2x+6
-5x>-2x-9
-3x>-9
x<3
Hope this helps
Answer:
19/40
Step-by-step explanation:
just divide the number of girls by the total number of students.
323/680 = 19/40 or 0.48
To know the answer, you need to find the common denominator. Common denominator is the multiple of a denominator which 2 or more fractions have the same denominator. The common denominator of 7/8 and 5/10 is 40 because 8*5=40 and 10*4=40.
7/8 times 5 equals 35/40 and 5/10 times 4 equals 20/40.
35/40 is greater than 20/40
So the answer is yes. 7/8 is greater than 5/10.
:) hope this helped i tried