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zhannawk [14.2K]

3 years ago

15

An airplane travels 550 miles from North Carolina to Tennessee in 90 minutes. At this rate, how many minutes will it take the ai

rplane to travel 6,600 miles?

1 answer:

scZoUnD [109]3 years ago

8 0

Answer:

It will take 1,080 min or 18 hours

Step-by-step explanation:

Here is why, since 6600 miles is 12 times farther than 550 miles you'd multiply the time it took to go 550 miles by 12 too

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Heather has her own bakery. She makes 4 pans of muffins each day. If her bakery is open 7 days a week, how many pans of muffins

OlgaM077 [116]

Answer:

28 pans of muffins per week

Step-by-step explanation:

To solve the above question, we know that:

1 day = 4 pans of muffins

7 days = x pans of muffins

Cross Multiply

1 day × x pans of muffins = 7 days × 4 pans of muffins

x = 28 pans of muffins

Since, 7 days = 1 week

Heather makes 28 pans of muffins per week

3 0

3 years ago

The differential equation in Example 3 of Section 2.1 is a well-known population model. Suppose the DE is changed to dP dt = P(a

LuckyWell [14K]

Answer:

Decreases

Step-by-step explanation:

We need to determine the integral of the DE;

$dP/dt=P(aP-b)$

$dP=P(aP-b)dt$

$1/(dP^2-bP)dP=dt$

We can solve this by integration by parts on the left side. We expand the fraction 1/P²:

$1/(d-b/P)\cdot{P^2} dP$

let

$u=d-b/P$

$du/dP=b/P^2$

$dP=$ $\int\limits {P^2/b} \, du$

$P=lnu/b$

Substitute u in:

$P=ln(d-b/P)/b$

Therefore the equation is:

$ln(d-b/P)/b=t$

We simplify:

$d-b/P=e^b^t$

$P=b/(d-e^b^t)$

As t increases to infinity P will decrease

6 0

3 years ago

10 POINTS!! Fast!!<br> In the figure, (BE)||(CD). Solve for x. Show your work.

KatRina [158]

AE/ED=AB/BC

9/6=x/10

x=15

6 0

4 years ago

The total cost of a dress,including tax, was $121.37. If 6% tax was added to the sale price, what was the sale price before taxe

Mamont248 [21]

Answer:

We have

sale price + 6% x sale price = $121.37;

Then

(106/100) x sale price = $121.37;

sale price = $121.37 x 100 / 106;

sale price = $12137 / 106;

sale price = $114.50;

Step-by-step explanation:

6 0

3 years ago

A box of cereal costs $3.49. How much do a dozen boxes of cereal cost?

antiseptic1488 [7]

Answer:

41.88

Step-by-step explanation:

3.49*12=41.88

7 0

3 years ago

Read 2 more answers