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stepladder [879]
3 years ago
6

Solving the problem

Mathematics
1 answer:
aalyn [17]3 years ago
6 0
You have to multiply the centimeters. Ex: 4 cm × 4 cm × 4 cm = 12 cm. So the area would be 12 cm. Same with all the others, just multiply.
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You need 320 mL of a 85% alcohol solution. On hand, you have a 60% alcohol mixture. How much of the 60% alcohol mixture and pure
Radda [10]

Answer:

Step-by-step explanation:

If we let x = the amount of 5% solution and y = the amount of pure alcohol, we can set up that

.05x+y is the amount of alcohol in our resulting mixture, and x+y is the total amount in our resulting mixture (which we know is 380)

so we also know that:

(.05x+y)/380 = .6

If we simplify this we come up with:

.05x+y=228

and we know x+y=380

If we solve this as a system of equations, we will find that:

x=160 ml

y=220 ml

5 0
3 years ago
A city planner is rerouting traffic in order to work on a stretch of road. The equation of the path of the old route can be desc
Alekssandra [29.7K]

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<em>y - P = -5/2 (x - Q)</em>

Step-by-step explanation:

on flvs geometry module 4 test, this is correct!

8 0
2 years ago
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current rules for telephone area codes allow the use of digits 2-9 for the first digit and 0-9 for the second and third digits.
lukranit [14]
In this question, there are 10 digit phone number which was divided into 3-3-4 digits. Every first digit of the division should be 2-9 which mean only 8 possibilities. The other digits would be 0-9 which mean 10 possibilities. Then the calculation would be:

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If you convert <span>400,000,000 into the scientific form it will become 4* 10^8. Since 5.12*10^9 > 4 * 10^8, then it is clear that the number should be enough</span>
5 0
3 years ago
PLEASE HELP ME ON QUESTION 6b ASAP.
Serjik [45]

Answer:

y = - sin ( x )

X E R

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5 0
3 years ago
Use a composite figure to estimate the area of the figure.
bezimeni [28]
A) about 14 square units

You have 11 fully filled squares 2 that are mostly filled and 2 that are about half filled

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6 0
2 years ago
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