1 year ago

What is the inequality 4x-7<5

Mathematics

2 answers:

Grace [21]1 year ago

8 0

Answer:

x < 3

Step-by-step explanation:

$4x-7 < 5\\4x-7+7 < 5+7\\4x < 12\\\frac{4x}{4} < \frac{12}{4}\\x < 3$

poizon [28]1 year ago

6 0

Answer:

x<3

Step-by-step explanation:

4x-7<5

4x<12

x<3

Hope this helps!

If not, I am sorry.

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The dress store is having a sale where all merchandise 1/4 off. A women buys $48 of merchandise at the sale price

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a student either knows the answer or guesses. Let 3434 be the probability that he knows the answer and 1414 be the probability t

Arlecino [84]

Answer: $\dfrac{12}{13}$

Step-by-step explanation:

Let A = he known the answer then A' = he guess the answer.

B = he answered it correctly

As per given , we have

$P(A)=\dfrac{3}{4}\ \ ,\ \ P(A')=\dfrac{1}{4}$

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By Bayes theorem , we have

$P(A|B)=\dfrac{P(B|A)P(A)}{P(B|A)P(A)+P(B|A')P(A')}\\\\ P(A|B)=\dfrac{1\times\dfrac{3}{4}}{1\times\dfrac{3}{4}+\dfrac{1}{4}\times\dfrac{1}{4}}\\\\= \dfrac{12}{13}$

The probability that the student knows the answer given that he answered it correctly is $\dfrac{12}{13}$ .

6 0

2 years ago

Please need help on this

Alex

Answer:

there is an 88% chance it will land on teal, because if you do 16/18, you get 0.8 repeating. then, you multiply by 100 and get 88%

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2 years ago

Can you make 24 from the numbers 3, 6, 8 and 2, using all the numbers? You can only use the operations: + - x / ( )

Andre45 [30]

Answer:

you can do 3 x 6 + 8 - 2

Step-by-step explanation:

3 × 6= 18

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hope this Helps :)

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2 years ago

What is 2(x+14)+(2x-14

lawyer [7]

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