Answer:
2-2/2-4= 0/-2= 0
Step-by-step explanation:
no slope
A) (x÷7)-10
B) 7x -10
C) (x-10)÷7
D) (x÷7)-10
A and D are the same
1. Since 12 took both, subtract 12 from 20 and 25.
Now we have 8 taking only chemistry, 13 taking only biology, and 12 taking both. Add all those together to get 33.
Subtract 33 from 50 to get 17, which is the number of students taking neither.
2. He had 3 nickels, 1 quarter, and 6 dimes.
This is an equation that represented his coins:
3n + 1q + 6d = 1.00
3 x .5 = .15 1 x .25 = .25 6 x .10 = .60 .60 + .25 = .85 .85 + .15 = 1.00
3. Add together 7 and 11 to get the 5th and 6th graders: 18 students.
The remaining 4th graders make up 1/3 of the team, so 18 is 2/3 of the team.
Find 1/3 by dividing 18 by 2 to get 9.
There are 9 4th graders.
Hope this helps!
According to the second equation, “x” is equal to “y.” With this knowledge, we can substitute the value “x” into the first equation:
-5x – 3y = 16
-5x – 3(x) = 16
Combine like terms:
-8x = 16
Divide (-8) from both sides of the equation:
x = -2
We have proven that “x” is equal to (-2). Using this knowledge, we can now substitute the known value of “x” into the second equation:
y = x
y = (-2)
We have now proven the values of both X and Y:
x = -2
y = -2
I hope this helps!
Answer:
A serving of a certain kind of cereal is 2/3 cup. There are 12 cups of cereal in the box. How many servings of cereal are in the box? There are 12/(2/3) = 12*(3/2) = 36/2 = 18 total servings.
Step-by-step explanation: