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Bingel [31]
3 years ago
15

1. -12x + 7 = 79 Please help me

Mathematics
2 answers:
LUCKY_DIMON [66]3 years ago
8 0

Answer:

X=-6

Step-by-step explanation:

never [62]3 years ago
3 0

- 12x + 7 = 79

- 12x = 79 - 7

- 12x = 72

x =  \frac{ \:  \: \:  72}{-12}

x =  - 6

Let us check whether we have found out the correct value of x or not by placing -6 in the place of x .

<h3>Which means :-</h3>

= -12 × -6 + 7 = 79

= 72 + 7 = 79

<h3>LHS = RHS</h3>

Therefore , 12 × -6 + 7 = 79 , ( x = - 6 ) .

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Consider dealing a hand of 8 cards from a well shuffled standard deck of playing cards. The expected value of the number of face
zzz [600]

Answer:

2 face cards

Step-by-step explanation:

By definition, there are 12 face cards (Kings, queens, and jacks) and 36 numbered cards (2's through 10's) in a standard deck of 52 cards.  Aces are not considered face cards (no face on the card).

The ratio of face cards in a full deck is (12/52) or slightly over 23%.

The likelihood of a face card in a hand of 8 cards is:

(8 cards)*(12 face cards/52 cards) = 1.85 cards.  We need to round to the nearest whole card, so the expected number of face cards in a hand of 8 is 2 cards.  

8 0
2 years ago
I need help with this!!!
7nadin3 [17]

Answer:

6

Step-by-step explanation:

cancel out 5 by multiplying its by 5, what you do to one side you do to the other.   so you also multiply 12 by 5. and you should get 60

3 0
3 years ago
5
ziro4ka [17]

Answer:yhjghjghj

Step-by-step ex6757lanation:

4 0
3 years ago
I have done this for a million times and I always get this one wrong I need the correct answer
LenaWriter [7]

Answer:

A, B, and D.

Step-by-step explanation:

HEY!! remember that if a number has ^2, it basically means it's multiplied by itself. for example:

5^2 = 5 x 5

aka, 25.

You can use this to check each of the answers in your formula, like this:

if x=6, then:

x^2 < 100

6 x 6 = 36

36 < 100

A is one of your correct answers!

Also remember, if you multiply a negative by a negative, it becomes positive.

-5 x -5 = 25

-10 x -10 = 100

6 0
3 years ago
Read 2 more answers
A blouse normally cost $138 but is on sale for 25% what is the cost of the blouse
Eddi Din [679]

Answer:

The cost of blouse after 25% discount is $103.5

Step-by-step explanation:

Cost of Blouse = $138

Sale = 25 %

New cost of Blouse will be:

25% of 138

= 25 / 100 * 138

= 34.5

So, New Cost of Blouse = Original Price - Discount Price

= 138 - 34.5

= $103.5

The cost of blouse after 25% discount is $103.5

7 0
3 years ago
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