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3 years ago

8

A deck of card is made up of 4 suits: clubs, diamonds, hearts and spades. each suit has 13 cards ranging from: 2,3,4,5,6,7,8,9,1

0,J, Q, K, A. What is the probability of drawing a 7 or 8 from a deck of playing cards?

1 answer:

Amiraneli [1.4K]3 years ago

4 0

The probability of drawing a 7 or 8 from a decl of playing cards is 2/13.

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Si una persona aprovecha un descuento del 20% y paga 60.000 pesos por una camisa,¿Cuál era el precio de la camisa sin el descuen

oksano4ka [1.4K]

Answer:

the price of the shirt without discount is 75,000 pesos

Step-by-step explanation:

The computation of the price of the shirt without discount as follows:

There is a discount of 20%

And the person pays 60,000 pesos after considering the discount

So, the price without discount is

= 60,000 pesos ÷ 0.80

= 75,000 pesos

hence, the price of the shirt without discount is 75,000 pesos

6 0

2 years ago

A train travels 250 miles at a constant speed (x), in miles per hour.Enter an equation that can be used to find the speed of the

Nastasia [14]

The first thing we must do for this case is to take into account the following variable:
x = speed in miles per hour
Then, by definition we have to:
d = v * t
Where,
d: distance
v: speed
t: time
Substituting values:
250 = x * 5
Answer:
An equation that can be used to find the speed of the train is:
250 = x * 5

6 0

2 years ago

Two mechanics worked on a car. The first mechanic charged $55 per hour, and the second mechanic charged $60 per hour. The mechan

Nady [450]

Answer:

15 and 5 hours.

Step-by-step explanation:

Call x the time taken by the first chap, and y the second.

$\left \{ {{x+y = 20 \atop {55x+60y=1125}} \right.$

Let's divide by 5 and play with the LHS of the first equation a bit:

$11x+ 11y +y = 225\\11(x+y)+y= 225$ we know how much x+y is ( first equation!) let's solve.

$11(20) +y = 225 \rightarrow y=5$ At this point it's easy to check that $x=15$

8 0

2 years ago

At a leather shop, 50 leather jackets were sold in February. The shop keeper at the store wants to encourage the sales team to s

Doss [256]

You would have to first multiply 50 by 30% and you should get 15. Then you add 15 jackets to 50 and get 65 jackets in total.

6 0

3 years ago

Choose the constant term that completes the perfect square trinomial. y 2 + 5y

mr Goodwill [35]

<span>each missing number is the square of half the coefficient of the 1st order term</span><span>
(5/2)² = 25/4 </span>

5 0

3 years ago