Answer:
% Change = (87.5 - 125) / 125 * 100%
= -37.5 / 125 * 100%
= -0.3 * 100%
= -30 %
The percent change is -30 % or 30% decrease.
Hi there!
To solve this using substitution, we substitute the value of y in the equation.
5x + 8 = 8x + 9
Now, we simplify.
8 = 3x + 9
-1 = 3x
x = -1/3
We plug the value of x in,
y = 5 (-1/3) + 8
y = -1 2/3 + 8
y = 6 1/3
Hope this helps!
Answer:
I cant graph it for you but i can tell u the answer! i just saw that it has the full explanation better than mine!
Step-by-step explanation
<span>Let the age of the 4th person be F
Sum of the 1st four in line: 4(23), or 92
Sum of 1st 3: 92 - F (excludes the 4th person's age)
Sum of the last 3 in line: 3(34), or 102
</span><span>Sum of last 2: 102 - F (excludes the 4th person's age)
Sum of all 6: 6(27), or 162 (INCLUDES 4th person's age)
We now get: F + 92 - F + 102- F = 162
- F + 194 = 162
- F = 162 - 194
- F = - 32
F, or 4th person's age = -32/-1, or 32
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Answer:
Step-by-step explanation:
