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noname [10]
2 years ago
7

A car can travel 32 miles for each gallon of gasoline. The function ​d(x)equals=32x represents the distance​ d(x), in​ miles, th

at the car can travel with x gallons of gasoline. The​ car's fuel tank holds 10 gal.
Mathematics
1 answer:
viva [34]2 years ago
3 0
The car fuel tank represents the variable x value while the d(x) represents distance it can travel. If the car has 10 gallons of fuel inside its tank, to find the distance that the car can travel would be:

<span>d(x)=32x
</span>d(10)=32(10)
d(10)=320 miles
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A woman is walking at the rate of 90 yards per minute. How fast is she going in feet per second?
motikmotik

Answer:

She is going at the rate of 4.5 feet per second.

Step-by-step explanation:

Given:

The rate of walking is 90 yards per minute.

Now, to find the rate in feet per second.

1 yard = 3 foot.

1 minute = 60 seconds.

So, first we find the rate of walking per second in yard = 90\div 60

Therefore by dividing we get = 1.5 yard

Now, we find the rate of walking per second in feet = 1.5\times 3

So, by multiplying we get = 4.5 feet

Therefore, she is going at the rate of 4.5 feet per second.

3 0
2 years ago
mary wants to put a fence around her garden. the garden measures 10 ft by 6ft. if fencing costs $5,how much will the fence cost
SVETLANKA909090 [29]
The total cost of the fence would be 132$.


7 0
3 years ago
Answer each part below using only mental math, and describe your method. a. If 39 is 1% of a number, what is that number? How di
Leni [432]

Answer:

Step-by-step explanation:

Given:  39 = 0.01n

Move the decimal point on each side two places to the right:  3900 = n

8 0
3 years ago
An artist can sell 20 compies of a painting for $100 each, but for each additional copy he makes the value of each painting will
ki77a [65]

Answer:

40 copies for $3000

Step-by-step explanation:

First: The Equation

y=(20+x)(100-x)

This shows how for every new painting, the price will go down.

y=2000+80x-x²

Convert it to standard form: ax²+bx+c

You can now choose to graph it or find the vertex form. For the limit of time, I will just use a graph.

The vertex, (40,3000), is your answer, where the x value is the number of paintings and the y value the money made.

4 0
3 years ago
Need the answer ASAP
romanna [79]
As from the question,

x = 60°
πd = 12π

Using the Arc Length formula,

x/360° × πd
= 60°/360° × 12π
= 2π

Ans: B
4 0
3 years ago
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