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Phoenix [80]
3 years ago
8

Dave wants to put a row of tiles in his kitchen. The row has to be 3 meter long. Each tiles is a square, with 25 cm sides. How m

any tiles does he need?
Mathematics
1 answer:
ladessa [460]3 years ago
8 0

Answer:the answer is b or c

Step-by-step explanation:

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charlie needs to make a total of 60 deliveries this week. so far he has completed 18 of them. what percentage of his total deliv
VladimirAG [237]
18 / 60 = 0.3
Charlie has completed 30% of his deliveries
5 0
3 years ago
2^5×8^4/16=2^5×(2^a)4/2^4=2^5×2^b/2^4=2^c<br>A=<br>B=<br>C= <br>Please I'm gonna fail math
aleksley [76]

9514 1404 393

Answer:

  a = 3, b = 12, c = 13

Step-by-step explanation:

The applicable rules of exponents are ...

  (a^b)(a^c) = a^(b+c)

  (a^b)/(a^c) = a^(b-c)

  (a^b)^c = a^(bc)

___

You seem to have ...

  \dfrac{2^5\times8^4}{16}=\dfrac{2^5\times(2^3)^4}{2^4}\qquad (a=3)\\\\=\dfrac{2^5\times2^{3\cdot4}}{2^4}=\dfrac{2^5\times2^{12}}{2^4}\qquad (b=12)\\\\=2^{5+12-4}=2^{13}\qquad(c=13)

_____

<em>Additional comment</em>

I find it easy to remember the rules of exponents by remembering that <em>an exponent signifies repeated multiplication</em>. It tells you how many times the base is a factor in the product.

  2\cdot2\cdot2 = 2^3\qquad\text{2 is a factor 3 times}

Multiplication increases the number of times the base is a factor.

  (2\cdot2\cdot2)\times(2\cdot2)=(2\cdot2\cdot2\cdot2\cdot2)\\\\2^3\times2^2=2^{3+2}=2^5

Similarly, division cancels factors from numerator and denominator, so decreases the number of times the base is a factor.

  \dfrac{(2\cdot2\cdot2)}{(2\cdot2)}=2\\\\\dfrac{2^3}{2^2}=2^{3-2}=2^1

5 0
3 years ago
Mr. Martinez makes $800 in 20 hours. How much does he make in one<br> hour? How do you know?
Sati [7]

Answer:

$40

Step-by-step explanation:

Divide.

$800 / 20 hrs.

= $40

6 0
3 years ago
Read 2 more answers
Can someone please help me with this question
dalvyx [7]

Answer:

a) 6/9 shaded.

b) About 67% is shaded. (66.6% repeating rounded to 67%)

5 0
3 years ago
Fill the chart for me
yulyashka [42]
6, 1.5, 10, 16, 80, and 2
4 0
3 years ago
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