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Ahat [919]
3 years ago
13

A school wants to buy a chalkboard that measures 1 yard by 2 yards. The chalkboard costs $71.00 per square yard. How much will t

he chalkboard cost?
Mathematics
2 answers:
Sedbober [7]3 years ago
8 0
The answer is 142! :)
KengaRu [80]3 years ago
6 0

Answer:

142

Step-by-step explanation:

You might be interested in
2) A jacket that is regularly priced at $175 is on sale, at a discount of 35%.
Mandarinka [93]

Answer:

$113.25

Step-by-step explanation:

35% of 175 is 61.25. Since it's 35% OFF we have to subtract 61.25 to 175 which is 113.25.

I hope this helps and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

5 0
2 years ago
A scientist has discovered a new strain of bacteria. The bacteria culture initially contained 1000 bacteria and the bacteria are
Anna007 [38]

Answer:

Bacteria Culture = B

Hour = H

<u>B=1000*2^H</u>

Step-by-step explanation:

Every hour, the bacteria doubles. This means that the amount is multiplied by 2 every hour. If it was 5 hours in, the bacteria would be at 32000. You can use the equation B=1000*2^5 to get that answer.

4 0
3 years ago
Factorise :12(x²+7)²-8(x²+7)(2x-1)-15(2x-1)²
Readme [11.4K]
12(x^2+7)2−8(x^2+7)(2x−1)−15(2x−1)^2

Distribute:

=12x^4+168x^2+588+−16x^3+8x^2+−112x+56+−60x^2+60x+−15

Combine Like Terms:

=12x^4+168x^2+588+−16x^3+8x^2+−112x+56+−60x^2+60x+−15

=(12x^4)+(−16x^3)+(168x^2+8x^2+−60x^2)+(−112x+60x)+(588+56+−15)

=12x^4+−16x^3+116x^2+−52x+629

7 0
3 years ago
Read 2 more answers
A bag contains​ pennies, nickels,​ dimes, and quarters. There are 50 coins in all. Of the​ coins, ​8% are pennies and ​40% are d
diamong [38]

Answer:

Step-by-step explanation:

number of

pennies=8 % of 50=8/100×50=4

dimes=40 % of 50=40/100×50=20

nickels=4+3=7

quarters=50-(4+20+7)=50-31=19

total money=4+20×10+7×5+19×25

=4+200+35+475

=714 pennies

=7.14 $

6 0
3 years ago
Find the area of the circle.
julia-pushkina [17]

Answer:

The formula used to find area of circle is: Area=\pi \:r^2

Step-by-step explanation:

We need to find area of the circle

<em>(Note: The data is missing in this question, so I will just explain how to find area of circle.)</em>

The formula used to find area of circle is: Area=\pi \:r^2

where r is radius of circle.

So, If we have value of r and we put π = 3.14, we can find area of circle.

Let us suppose that Radius of circle r = 5

Now, the area of circle having radius 5 is:

Area=\pi \:r^2\\Area=3.14 \times (5)^2\\Area=3.14\times 25\\Area=78.5

So, when radius of circle is 5, Area of circle is 78.5

So, Using the radius given in your question, you can find area of circle.

7 0
2 years ago
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