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3 years ago

What is: x + 3 - 2x -1 = 4 5 3

Mathematics

2 answers:

Grace [21]3 years ago

8 0

Answer:

X= -46/7

Step-by-step explanation:

step1: left part times 15 is 3(X+3)-5(2X-1)

step2: right part times 15 is 60

step3: 3(X+3)-5(2X-1)=60

step4: 3X+9-10X+5=60

step5: -7X+14=60

step6: -7X=46

step7: X= -46/7

Sever21 [200]3 years ago

5 0

(x + 3)/5 - (2x - 1)/3 = 4 / * 15

3(x + 3) - 5(2x - 1) = 15 * 4

3x + 9 - 10x + 5 = 60

7x = 60 - 9 - 5

7x = 46 / : 7

x = 6 4/7

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900

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3 years ago

What is equivalent to — 19 — 11

satela [25.4K]

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3 years ago

A special deck of cards has ten cards. Four are green, three are blue, and three are red. When a card is picked, its color of it

nata0808 [166]

Answer:

P(A) = 3/20

Step-by-step explanation:

P(A)=P(blue)P(head)=(3/10)(1/2)=3/20

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4 years ago

John is about to roll a six-sided, fair number cube 60 times. He wants to predict how many times the cube will land on an even n

GalinKa [24]

Even numbersso each dice has numbers1,2,3,4,5,6the eve numbers are2,4,6odd are others1,3,5so 1/2 are odd
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4 0

3 years ago

Read 3 more answers

Suppose that a computer software company has 30

LekaFEV [45]

Answer: $\dfrac{30!}{6!(24)!}$

Step-by-step explanation:

Given : The total number of programmers in the company = 30

The company wants to select a group of 6 programmers to work on a particular project.

Since the order of selecting them does not matters , therefore we use combinations.

The number of combinations of r things taken from n things is given by :-

$^nC_r=\dfrac{n!}{r!(n-r)!}$

here, n= 30 and r= 6

So the number of different ways to form they could select a group of 6 would be $^{30}C_{6}=\dfrac{30!}{6!(30-6)!}$

$=\dfrac{30!}{6!(24)!}\\\\=\dfrac{30\times29\times28\times27\times26\times25\times24!}{(720)24!}=593775$

i.e. Total ways =593775

In terms of factorials , the number of total ways to form they could select a group of 6 is $\dfrac{30!}{6!(24)!}$ .

7 0

3 years ago