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1 year ago

Mr. Parker spent $96.30 on 3 hats and 6 key chains. if each hat cost $15.50 how much did each key chain cost?

Mathematics

1 answer:

Vladimir [108]1 year ago

6 0

1) Given that Mr. Parker spent that we can write

3h +6k = 96.30

h=15.5

2) So now let's solve system system

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A local pizzeria offers 15 toppings for their pizzas and you can choose any 3 of them for one fixed price. How many different ty

Shtirlitz [24]

Answer:

455 or 680, depending

Step-by-step explanation:

If we assume the three choices are different, then there are ...

15C3 = 15·14·13/(3·2·1) = 35·13 = 455

ways to make the pizza.

___

If two or three of the topping choices can be the same, then there are an additional ...

2(15C2) +15C1 = 2·105 +15 = 225

ways to make the pizza, for a total of ...

455 + 225 = 680

different types of pizza.

There is a factor of 2 attached to the number of choices of 2 toppings, because you can have double anchovies and tomato, or double tomato and anchovies, for example, when your choice of two toppings is anchovies and tomato.

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3 years ago

The length of a rectangle is 5.2cm and its breadth is 3.4cm. What is the area of the rectangle?

Rainbow [258]

Answer:

$\huge{ \boxed{ \sf{17.68 \: {cm}^{2} }}}$

Step-by-step explanation:

$\underline{ \text{Given}} :$

$\longrightarrow \sf{ \: Length \: of \: a \: rectangle \: = \: 5.2 \: cm}$

$\longrightarrow{ \sf{Breadth \: of \: \: rectangle \: = \: 3.4 \: cm}}$

$\underline{ \text{To \: find} } : \sf{Area \: of \: a \: rectangle}$

$\boxed{ \sf{Area \: of \: a \: rectangle \: = \: Length \: \times \: Breadth}}$

$\mapsto{ \sf{Area \: = \: 5.2 \: cm \: \times \: 3.4 \: cm}}$

$\mapsto{ \sf{Area \: = \: 17.68 \: {cm}^{2} }}$

Hope I helped!

Best regards! :D

~ $\text{TheAnimeGirl}$

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Answer:

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Step-by-step explanation:

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Hope this was helpful.

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Vesnalui [34]

Answer:

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Step-by-step explanation:

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