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Oksana_A [137]
2 years ago
11

2.–/1 pointsMy Notes

Mathematics
1 answer:
Hitman42 [59]2 years ago
6 0
What is "b" ???????????
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You randomly select one card from a 52-card deckFind the probability of selecting the eight of spades or the seven of hearts
dangina [55]

Answer:

2/52

Step-by-step explanation:

Because a normal deck of cards only has one eight of spades and only one of seven of heart. So that means the probability would be 2/52. Hope you get it!

5 0
3 years ago
Read 2 more answers
The sales tax for an item was $24.50 and it cost $490 before tax.
Ymorist [56]

The sales tax rate is 5%.

Step-by-step explanation:

Given,

Sales tax for an item = $24.50

Cost of item before tax = $490

Sales tax rate = \frac{Sales\ tax}{Cost\ of\ item}*100\\

Sales\ tax\ rate=\frac{24.50}{490}*100\\\\Sales\ tax\ rate=\frac{2450}{490}\\\\Sales\ tax\ rate=5\%

The sales tax rate is 5%.

Keywords: sales tax, percentage

Learn more about percentages at:

  • brainly.com/question/2173995
  • brainly.com/question/2191048

#LearnwithBrainly

3 0
3 years ago
Veronica teaches French in groups of four students. She rents a room for $200 per month. She charges $45 per hour per student. V
alexandr402 [8]
<span>of the task , we know that :
</span>
profit netto = $ 6100
<span>influenza students = 7
</span>hourly rate for one lesson of the French language  = $45

<span>we do not know about
</span>
profit brutto = ?    <span>denoted as x

</span><span>the amount collected lessons
for one student = ?    denoted as y

x = $6100 + $200
</span>y =  \frac{x}{45*7}
<span>
</span>\left \{ {{x=6300} \atop {y= \frac{6300}{315} =2}} \right.
<span>
2 away

</span>y =  \frac{6100 + 200}{45 * 7}  = 2<span>
</span>
4 0
3 years ago
A small pizza has an 8-in. Diameter a large pizza has a 15-in. Diameter. The pizzeria charges the same price per square inch for
vlabodo [156]

The cost of large pizza is $24.62, a small pizza has an 8-in. diameter a large pizza has a 15-in. diameter the pizzeria charges the same price per square inch for both pizzas and the small pizza cost $7.

Step-by-step explanation:

The given is,

                A small pizza has an 8-inches in diameter

                A large pizza has a 15-inches in Diameter

                The small pizza cost $7

Step:1

                Area of smaller pizza,

                                        Area, A_{S} = \pi  r^{2}...................................(1)

                 Where, r - Radius of small pizza

                 From given, r=\frac{d}{2}

                                         = \frac{8}{2}

                                       r = 4 inches

                  Equation (1),

                                    A_{S} = \pi  4^{2}

                                          =(3.14)(16)                             ( ∵ \pi=3.14 )

                                          = 50.24 Square inches

Step:2

              Area of smaller pizza,

                                        Area, A_{L} = \pi  r^{2}...................................(1)

                 Where, r - Radius of small pizza

                 From given, r=\frac{d}{2}

                                         = \frac{15}{2}

                                       r = 7.5 inches

                  Equation (1),

                                    A_{S} = \pi  7.5^{2}

                                          =(3.14)(56.25)                             ( ∵ \pi=3.14 )

                                          = 176.625 Square inches

Step:3

            Cost of pizza per square meter,

                                                = \frac{Cost of small pizza}{Area of small pizza}

                                                =\frac{7}{50.24}

                                                = $ 0.1393 per square meter

                Cost of Larger pizza = Area of Larger pizza × Cost per square meter

                                                = (176.625)(0.139331)

                                                = $24.62

Result:

          The cost of large pizza is $24.62, a small pizza has an 8-in. diameter a large pizza has a 15-in. diameter the pizzeria charges the same price per square inch for both pizzas and the small pizza cost $7.

         

                                             

6 0
3 years ago
(-1)x^{2} 299 cual es el resultado y los pasos?
GuDViN [60]
Answer: 299x^2 I think I hope we help you
7 0
3 years ago
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