The answer is <u><em>3.</em></u> Just combine like terms.
For 80 guests you will need 80/10 = 8 times more than for 10 guests:
8*9.50 = $76
Refreshment for 80 guests costs $76.
Answers:
<h2>y = 7 when x = 1</h2><h2>y = 10 when x = 2</h2><h2>y = 13 when x = 3</h2>
Step-by-step explanation:
To solve this, we plug in the given values for x, 1, 2, and 3.
<h2>Scenario 1. What is y when x is 1?</h2>
y = 3x + 4
y = 3(1) + 4
y = 3 + 4
y = 7
<h2>Scenario 2: What is y when x is 2?</h2>
y = 3x + 4
y = 3(2) + 4
y = 6 + 4
y = 10
<h2>Scenario 3: What is y when x is 3?</h2>
y = 3x + 4
y = 3(3) + 4
y = 9 + 4
y = 13
Interesting pattern: y appears to be 3 times x
In other words: as x increases by 1, y will increase by 3. The slope of this line is y/x or 3/1 or simply, 3.
Answer: 9:7
Subtract 32 by 14, because there are 14 red marbles.
32 - 14 = 18.
Now, get the numbers 14 and 18. Reduce them to the lowest.
18 ÷ 2 = 9
14 ÷ 2 = 7
Make 9 & 7 to a ration.
Ration- 9:7
Answer:
Real numbers = 39 and 9
Step-by-step explanation:
The standard form of a quadratic equation is ax² + bx + c = 0
Given the following data;
a = 1
b = -43
c = 306
Quadratic equation formula is;
Substituting into the equation, we have;
Therefore, the two real numbers are 39 and 9.
The quadratic equation now becomes;
x² - 43x + 306 = (x - 39)(x - 9) = 0