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Fudgin [204]
3 years ago
9

2) Lisa is ordering sand from the Internet, On one site she found sand on sale for

Mathematics
1 answer:
Anastasy [175]3 years ago
7 0

For this case we must find the unit cost (dollars per pound) of each site and then compare.

We take into account that:

1kg equals 2.205 pounds

So, we have:

Site 1:

C = 2.25 \frac {dollars} {pound}

Site 2:

5kg = 5 (2.205\ pounds) = 11.025 pounds

So, the unit cost is:

C = \frac {14} {11.025} \frac {dollars} {pound} = 1.27 \frac {dollars} {pound}

Thus, the best deal is on site 2.

ANswer:

The best deal is on site 2.

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The loudness L(x) measured in decibels, of a sound of intensity x, measured in watts per square meter, is defined as L(x)=10 log
Margaret [11]

If you can find your way through all the smoke of the definition,
you find that an increase of 10 times the intensity is an increase
of 10 dB.

Next, if you can find your way over, under, around, and through
all the speeds and distances of the vehicles, you'll find that you
don't need them.  Right in the middle of the pile, it says "intensity
10 times that of ...".  That right there tells you that the sound of
the truck is 10 dB louder than the sound of the car.

So the car is 70 dB (asked for, and then given), and the truck is 80 dB.


4 0
3 years ago
Miranda has 4 lb 6 oz of clay is she divided it into 10 equal parts how heavy is each part?
natulia [17]
Each part would be 20z of Clay
8 0
3 years ago
Nathan opens a new savings account and makes an initial deposit of $400.
AfilCa [17]

Answer:

The answer to the first one is 6

Step-by-step explanation:

If the time frame given is 9 months, then we can find that 9 months is 3/4 of a year. 3/4 x 2% = 0.015.     0.015 x 400 = 6. He would have made 6 dollars in 9 months.

Answer the the second one:

4.5% x 5 (years) = 0.225.     0.225 x 10,000 = 2,250. Since this is a car loan and not a bank interest for example, we add it to the total cost. I'm pretty sure its the third one.

6 0
3 years ago
PLEASE HELP {It costs 5,700 every one sixth of an hour to build a hotel how many cents does building a hotel cost per second?}
Keith_Richards [23]
One sixth of an hour is 10 minutes.
That means it costs 5,700 every 10 minutes.

Costs 5,700 = 10 minutes

Dive 10 on both sides.

Costs 570 = 1 minute

Lets convert the minute into seconds.

Costs 570 = 60 seconds

Divide both sides by 60.

Costs 9.5 cents = 1 second

Round it off since you can't pay 9.5 cents.

Costs 10 cents = 1 second

This means that every second they pay 10 cents for the hotel. :D


8 0
3 years ago
A charity has received donations totaling $2370. However, this is only three-fifths of its goal.
Alinara [238K]
3,950 is your answer. See, you divide 2,370 by 3 to get 1/5 of their goal and then multiply that by 5.
8 0
3 years ago
Read 2 more answers
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