Answer:
About 4.8
Step-by-step explanation:
The formula for the area is pi(r^2).
Plugging the area in to the equation, you get 72.382=pi(r^2).
Dividing both sides by pi, you get about 23.04=r^2.
Taking the square root of both sides you get about r=4.8
From the given conditions above, if Corrine's brother's age is b, hers would be b - 6 given that she is 6 year younger. Adding b with b - 6 will give 2b - 6. Thus, the expression that shows the sum of their ages is <em>2b - 6</em>.
Answer:
number of pennies = 19
number of dimes = 19
number of quarters = 45 - 2 × 19 = 45 - 38 = 7
Step-by-step explanation:
The total number of coins in the box is 45 . The coins consist of pennies, dimes and quarters.
The number of pennies is equal to the number of dimes. The remaining number is the quarters. Therefore,
number of pennies = a
number of dimes = a
number of dimes = 45 - 2a
1 dime = 0.1 dollars
1 penny = 0.01 dollars
1 quarters = 0.25 dollars
Thee total cost can be expressed as follows
3.84 = a(0.01) + a(0.1) + 0.25(45 - 2a)
3.84 = 0.01a + 0.1a + 11.25 - 0.5
a
3.84 = -0.39
a + 11.25
3.84 - 11.25 = -0.39
a
-7.41 = -0.39
a
divide both sides by -0.39
a = -7.41/-0.39
a = 19
number of pennies = 19
number of dimes = 19
number of quarters = 45 - 2 × 19 = 45 - 38 = 7
If you’re just looking at money made and not costs to produce you’d be using the number of cupcakes sold and the price they’re being sold at...
So if cupcakes sell for 2.00 the equation would just be 2x
2 for price of cupcakes and x for number of cupcakes sold
Answer:
the answer is the last one.
Step-by-step explanation:
First we multiply both sides of the inequality by -24 to isolate the variable.
Then, since we are multiplying with a negative number, the inequality sign flips.
All we do next is calculate.
Step by step we have
![\frac{h}{ - 24} \leqslant 18 \\ - 24 \times \frac{h}{ - 24} \geqslant - 24 \times 18 \\ h \geqslant - 432](https://tex.z-dn.net/?f=%20%5Cfrac%7Bh%7D%7B%20-%2024%7D%20%5Cleqslant%2018%20%5C%5C%20%20-%2024%20%5Ctimes%20%20%5Cfrac%7Bh%7D%7B%20-%2024%7D%20%20%5Cgeqslant%20%20-%2024%20%5Ctimes%2018%20%5C%5C%20h%20%5Cgeqslant%20%20-%20432)