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worty [1.4K]
3 years ago
8

You are planning to purchase ten pencils of type A which cost a total of $14.00 and five pencils of type B which cost $15.00. A)

what is the price unit of each type per pencils? B) which is a better buy?
Mathematics
1 answer:
muminat3 years ago
8 0

Answer:

A.1 type A pencil costs $1.40. 1 type B pencil costs $3.00.

B. Type A pencils are a better buy.

Step-by-step explanation:

A.14.0 divided by 10 is 1.4. 15.0 divided by 5 is 3.

B. 10 type b pencils cost $30.00. 10 type a pencils cost less, only $14.00, so it is a better buy. Hope this helped!

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viktelen [127]
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4 0
3 years ago
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Harry reads that a particular element has an atom with a mass of 0.000000000012 grams. What is the weight of the atom expressed
Arlecino [84]
1.2 e⁻¹¹

Because you need a number between 1 and 10 for scientific notation. So you move the decimal over 11 places. Since you move it to the right, it becomes a negative exponent.
8 0
3 years ago
The distance a race car travels is given by the equation d=v0t+12at2 where v0 is the initial speed of the race car, a is the acc
Scrat [10]

Answer:

v0 + 1/2at

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The equation for the driver's average speed s during the acceleration will be:

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Therefore, the equation will be:

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7 0
3 years ago
Claire has a hot tub with a diameter of 7 feet. She wants to purchase a cover to protect the hot tub. What is the area
harkovskaia [24]

Answer:

The area  of the cover for the hot tub must be:

  • <u>38 square feet</u>.

Step-by-step explanation:

First, you must understand that since a hydromassage tub is mentioned and the diameter, it is assimilated that it is round in its upper part, which is why the formula is used to find the area of a circle:

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Since the diameter is mentioned, it can be replaced in the formula:

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7 0
3 years ago
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456 divided by n=4.56
Arlecino [84]
To find this out, just divide 456, by the answer of 4.56
So once you divide that, you get 100.
So, n=100
CHECK:
456 divided by 100=4.56
~~~~~~~~~~~~~~~~~~~
Hope this helped :)
8 0
3 years ago
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