Answer:
the answer is either a or c
Step-by-step explanation:
X is the slope
3 is the Y intercept
The (greater than equal to) sign means that the line will be solid
I dont remember which way the shaded area goes. the direction the greater than symbol is faceing has somthing to do with that.
Did this last year for my freshman year. sorry i cant help more
The expression is equivalent to the given expression is: negative 9 over 12 times t minus 2 over 9.
<h3>What is stated as the
equivalent expression?</h3>
- Equivalent expressions have been expressions that perform the same function despite their appearance.
- If two linear algebra expressions are equivalent, they have the same value when the variable is set to the same value.
For the given question, the expression is stated as-
Negative 7 over 6 times t plus 4 over 9 end quantity minus expression quantity negative 5 over 12 times t plus 2 over 3 end quantity
This can be written as;
= -7t/6 + 4/9 - (-5t/ 12 + 2/3)
Simplify the expression as;
= -7t/6 + 4/9 + 5t/ 12 - 2/3
Re arrange the numbers
= -7t/6 + 5t/ 12 - 2/3 + 4/9
Combine the variables and constant separately.
= -9t/12 - 2/9
This can be written in words as- negative 9 over 12 times t minus 2 over 9.
Thus, the expression is equivalent to the given expression is: negative 9 over 12 times t minus 2 over 9.
To know more about the equivalent expression, here
brainly.com/question/15775046
#SPJ1
Answer:
86.7 pounds
Step-by-step explanation:
57.8 / (2/3) = 86.7
Five half-full classes + three 3/4 full classes + 2 1/8 empty (which is 7/8 full) classes altogether give us 10 classes without 70 students. Let's assume that one class is x, so we can write it as:
5 * 1/2x + 3 * 3/4x + 2 * 7/8x = 10x - 70
After multiplying and changing it to decimals:
2,5x + 2,25x + 1,75x = 10x - 70
6,5x = 10x - 70 / - 6,5x (both sides)
0 = 3,5x - 70 / + 70 (both sides)
70 = 3,5x / :3,5 (both sides)
x = 20
Check:
5 * 1/2 * 20 + 3 * 3/4 * 20 + 2 * 7/8 * 20 = 10 * 20 - 70
5 * 10 + 3 * 15 + 2 * 17,5 = 200 - 70
50 + 45 + 35 = 130
130 = 130
Correct - there are 20 students in each class (200 students overall)
Answer: There are 200 students in the school when no students are absent.
