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Sauron [17]
3 years ago
7

The credit remaining on a phone card is a linear function of the total calling time made with the card. The remaining credit aft

er 45 minutes of calls is $14.60, and the remaining credit after 67 minutes of calls is $11.96. What is the remaining credit after 81 minutes of calls
Mathematics
1 answer:
dolphi86 [110]3 years ago
5 0

If you need the answer so go to the google and search for problem

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Hello I need help on this math question​
Zigmanuir [339]

Answer:

50.24\ cm ^2

Step-by-step explanation:

Let's start by finding the radius of this circle.

D=2r\\8=2r\\\text{Divide both sides by 2}\\r=4

Note that in the equation:

A=\pi r^2

"A" stands for area and "r" stands for radius.

Now, let's substitute the given values into the equation.

A=\pi r^2\\A=3.14*(4)^2\\A=3.14*16\\A=50.24\ cm^2

8 0
2 years ago
For 9x + 25 = 88, Deena wrote a situation “I bought some shirts at the store for $9 each and received a $25 discount. My total w
aliina [53]

Answer:

She bought 7 shirts

88 kids were going on a field trip. Each car could hold 9 kids, and 25 kids decided to ride the bus. How many cars were needed?

Step-by-step explanation:

9x=63

x=7

6 0
3 years ago
The owner of the plant nursery where you work tells you to fill 350 milliliter bottles from a 30 liter drum of fertilizer. How m
valina [46]
So we know that there are 1000 mL in 1 L. We can set up an equation that allows us to solve for how many bottles are needed in order to empty the 30 L tank:

\frac{1 bottle}{350 mL}*  \frac{1000 mL}{1 L}* \frac{30 L}{1 tank}

This equation then allows us to cancel out the units of mL and L, leaving us with how many bottles are needed per tank. Then we multiply straight across to give us:

\frac{30,000}{350}= \frac{85.71 bottles}{1 tank}

The question asks us to round up to the next whole number, so it would take 86 bottles to empty one 30 L tank.
8 0
3 years ago
Consider a square and a regular hexagon (a six-sided figure with sides of equal length). One side of the square is 25 feet longe
VARVARA [1.3K]
Square side length=75
Hexagon side length=50
4 0
3 years ago
Need help please<br>ansewer fast
Debora [2.8K]
14) 6.20

16) 9.1
 I hope that helps cuz
5 0
3 years ago
Read 2 more answers
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