Greg spent $47.45 on five books. If each book cost the same amount, how much does one book cost?

Mathematics

2 answers:

adell [148]3 years ago

4 0

Answer: $9.49

Step-by-step explanation:

If he spent 47.45 on five books you’re going to divide 47.45 by 5 which will give you 9.49

kvv77 [185]3 years ago

3 0

Answer:

Greg spent 9.49 cents on the book

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Anthony has a sink that is shaped like a half-sphere. The sink has a volume of 3000

IgorLugansk [536]

Answer:

a) 80
b) 56

Step-by-step explanation:

a) Calculate the volume of the the cup using volume of cylinder equation: $V = \pi r^{2} h$

Where V = Volume, r=radius, and h=height. Your answer should be in cubic inches ( $in^3$ ).
You're given diameter, so use equation $d/2 = r$ to find radius.
Substituting these equations will give you: $V = \pi (d/2)^2 h$
However, the given volume of the sink is 3000 $\pi$ , meaning that you should modify your results to match this value. Do not substitute $\pi$ for 3.14..., leave it as a symbolic value. Your final V of the cup should = 37.5 $\pi$
Divide the volume of the sink by the volume of the cup. This number will be the amount of cups needed to empty it. In equation form:
$Vsink / V cup =$ # of cups.
Note the the $\pi$ will cancel each other out, so there's not need to factor that in.
b) Repeat the steps above with the new d (diameter) value.

5 0

2 years ago

I Am offline or Raindowsalt please answer this !

nikitadnepr [17]

❀ $\huge\underline{ \underline{Solution :-}}$

$( {y}^{2} + \frac{5}{7} )( {y}^{2} - \frac{14}{5} )$

To solve, use the algebraic identity ➺

(x + a)( x + b) = x² + (a + b)x + ab

$( {y}^{2} + \frac{5}{7} )( {y}^{2} - \frac{14}{5} ) \\ = ({y}^{2}) ^{2} + ( \frac{5}{7} + - \frac{14}{5} ) {y}^{2} + \frac{5}{7} \times - \frac{14}{5} \\ = {y}^{4} - \frac{73}{35} {y}^{2} - 2$