Answer:
D, or the last answer
Step-by-step explanation:
First, plugin the value of y into the equation, resulting in 12 - 2(-2) = 8.
Second, Simplify as much as you can on the left hand side of the equation, resulting in 12 - (-4), and because of the double negative rule, those two negatives become a plus. 16
Lastly, see if the two sides are equal or not equal. 16 is NOT equal to 8. That means D is your answer.
for 16 square rooms in a
hotel. Each room will need
100 square feet of
carpet. What is the
length of 1 room?
Answer:
Length of a room is 10ft
Step-by-step explanation:
Given
Required
Determine the length of each room
Here, we'll assume that the carpet will cover each room completely.
If so:
Take square root of both sides
Take positive square root
Hence, the length of a room is 10ft
line.
Answer:
3 1/2
Step-by-step explanation:
|-7| - |-3 1/2| = 3 1/2
A. Calculate (I) the number of students with I-PhonesIn a school of 500 students, 30% had I-Phones. The percent of boys to gi
vere 25% and 75% respectively.
Answer:
tbh,I would calculate the girls to boys ratio.
Step-by-step explanation:
I mean, them boys gotta be in female heaven.
25% of them, the rest being girls, dang, imagine being handsome. lots of gf's
and FYI, it's iPhone not an i-phone.
-3x + 4y = -18
2x - y = 7
(-2,-3)
(-2,3)
(2, -3)
(2, 3)
The solution of the system of linear equations given is (2,-3), the correct option is C.
The system of linear equation is set of equations which have a common solution.
The equations are
-3x+4y = -18
2x-y =7
The linear equations can be solved using substitution method
y = 2x -7 from equation 2 will be substituted in equation 1
-3x +4 ( 2x -7) = -18
-3x +8x -28 = -18
5x = 10
x = 2
y = 2 * 2 -7 = -3
To know more about System of Linear Equations
#SPJ2
Answer:
Step-by-step explanation:
-3x + 4y = -18
8x - 4y = 28
5x = 10
x = 2
4 - y = 7
-y = 3
y = -3
(2, -3)
Answer:
OPTION B: 57x - 3
Step-by-step explanation:
Total tires produced is the sum of number of over-sized tires and the number of compact tires.
So, we have when x = 1, tires, y = 23 + 31 = 54
When x = 2, total tires y = 48 + 63 = 111
When x = 3, total tires y = 73 + 95 = 168
When x = 4, total tires y = 98 + 127 = 225
We can substitute the options to check which one will be the correct representation.
Option A: 55x - 1
When x = 1, y = 55(1) - 1 = 54
When x = 2, y = 55(2) - 1 = 109 111
So, this option is eliminated.
Option B: 57x - 1
When x = 1, y = 57(1) - 3 = 54
When x = 2, y = 57(2) - 3 = 111
When x = 3, y = 57(3) - 3 = 168
When x = 4, y = 57(4) - 3 = 225
These values exactly match with the values from the table. So, Option B is the right answer.
Option C: 110x - 2
When x = 1, y = 110(1) - 2 = 108 54
Hence, this option is incorrect.
Option D: 114x - 6
When x = 1, y = 114(1) - 6 54
Hence, this option is also eliminated.
Option B is the required answer.
Answer: D
Step-by-step explanation:
the person above me was on the right track but needed to multiply the sum of the y values by 2. Therefore the answer should be D