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balu736 [363]
3 years ago
6

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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Find the sum of the interior angle measures of a 7-gon
stiks02 [169]

Answer:

900

Step-by-step explanation:

4 0
3 years ago
What is equivalent to — 19 — 11
satela [25.4K]

Answer:

-30 ?

Not really sure what you mean by that but, -19-11= -30 is all I know.

5 0
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

as there are 10 cards in total, out of which 3 are blue so the probability to get the blue card is, P(blue) = 3/10. and the probability of getting a head when a coin is tossed is P(head) = 1/2.

So in total

P(A) = P(blue)*p(head) = (3/10)*(1/2) = 3/20 = 0.15

8 0
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
therefor 1/2 of 60 is how many times it would get even1/2 of 60=1/2 times 60=30
No not good predicitionmy prediction would be 30 times
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
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