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gtnhenbr [62]
3 years ago
10

What is the probability of picking a 7 from a standard deck of 52 cards?

Mathematics
1 answer:
BARSIC [14]3 years ago
8 0

Answer:

(c)- 4/13

Step-by-step explanation:

There are 4 types of cards in a ordinary deck clovers, diamands, hearts, and spades

each set has 1 seven each, so 4 sevens total.

Also, each type of card has 13 different cards in it

so, your answer is 4/13

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the weight M of an object on Mars varies directly as it’s weight E on Earth. A person who weighs 95 lb on Earth weighs 38 lb on
lorasvet [3.4K]

Answer:

A 100 lb person will weight 40 lb on Mars

Step-by-step explanation:

Given:

Weight on Mars directly varies as its weight on earth.

Let weight on Mars be = M

Let weight on Earth be = E

Its known that:

M ∝ E

Thus

M=kE

where k is constant of proportionality.

when  E=95\ lb, then M=38\ lb

thus, we have

38=k(95)

dividing both sides by 95.

\frac{38}{95}=\frac{k(95)}{95}

∴ k=\frac{38}{95}

Thus when E= 100, M would be calculated as

M=\frac{38}{95}\times 100

M=\frac{3800}{95}

∴ M=40\ lb  (Answer)

∴ A 100 lb person will weight 40 lb on Mars.

8 0
3 years ago
100 points and brainliest! geometry<br><br> please explain :)<br><br> thanks for reading this :)
scoundrel [369]

Hellooooo!! Marie Here!!!

The answer is here:

The value of "x" is 9

<h3>Hope This Helps!!! Have A GREAAATTTT Day!!</h3>
7 0
3 years ago
Use summation notation to write the series 49 + 54 + 59 +... for 14 terms.
My name is Ann [436]

Answer:

Arithmetic sequence states that a sequence of numbers such that the difference between the consecutive terms is constant.

it is given by:  a_n = a+(n-1)d where a is the first term , n is the number of term and d is the common difference.

Given the series: 49 + 54 + 59+ ......

here, Common difference(d) = 5

First term(a) = 49

by definition we have;

For nth term

a_n = a+(n-1)d

a_n = 49+(n-1)5

a_n =49+5n -5 = 5n + 44

To write the series using summation notation for 14 terms

Summation symbol '\sum'

The series for 14th terms is given by;

\sum_{n=1}^{14}(5n +44)


5 0
3 years ago
Read 2 more answers
What is the answer for -2(4x-4)+x
mezya [45]

Multiply the -2 with whats inside the brackets first, then simplify the equation.

-8x + 8 + x

-7x + 8

3 0
3 years ago
Ms. Solorio's small business had a profit of $460 on Monday. Write an integer to represent this profit.
zubka84 [21]
An interger may be +460 because profit means to increase. So the answer is +460.
~JZ
5 0
3 years ago
Read 2 more answers
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