Answer:
12
Step-by-step explanation:
1/5 of 15 is 3. 3 shirts are grey. 15-3 is 12. 12 t shirt are white.
Answer: a plumber earns $50 each day and a helper earns $30 each day.
Step-by-step explanation:
Let x represent the amount that a plumber earns in a day.
Let y represent the amount that a helper earns in a day.
One day, four plumbers and five helpers earned $350. This means that
4x + 5y = 350 - - - - - - - - - - -1
At the same rate of pay, another group of five plumbers and six helpers earned $430. This means that
5x + 6y = 430 - - - - - - - - - - - - 2
Multiplying equation 1 by 5 and equation 2 by 4, it becomes
20x + 25y = 1750
20x + 24y = 1720
Subtracting, it becomes
y = 30
Substituting y = 30 into equation 1, it becomes
4x + 5 × 30 = 350
4x + 150 = 350
4x = 350 - 150
4x = 200
x = 200/4 = 50
Answer:
<h3>1.47 * 10^8</h3><h3>
</h3>
Step-by-step explanation:
Given the value 141700000, we are to express in scientific notation
The standard form is expressed as A * 10^n
A is any integer between 1 and 10
n is also any integer
141700000.= 1.47 * 10^8
Note that the decimal point was shifted back 8 times, main reason the power is 8
Answer:
f(x) = (1/2) (x + 3)(x - 4)^2
Step-by-step explanation:
f(x) = C(x + 3)(x - 4)^2
y-intercept = f(0) = C(3)(-4)^2 = 48C = 24, so C = 1/2
f(x) = (1/2) (x + 3)(x - 4)^2
