Find the value of x.

Mathematics

1 answer:

Lorico [155]3 years ago

6 0

Answer:

3x-20=130

3x=130+20

3x=150

x=50

8x-2=-9+7x

8x-7x=-9+2

x=-7

x+6=33

x=33-6

x=27

those tasks are very simple, you should try to solve them on you're own first :)

Step-by-step explanation:

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What is the probability of selecting a red jack from a deck of cards?

Ostrovityanka [42]

Answer:

There's 2 red jacks in a deck and 2 black queens in a deck so you have a total of 4 possible cards out of a 52 total in a deck so that would be 4/52 or 1/13 of the time. Statistically 7.6% of the time you will get a red jack or a black queen.

Step-by-step explanation:

3 0

2 years ago

What is the value of this expression when a = 4, b= -5, and c= -7?<br> a + 2bc<br> 3a ?

sladkih [1.3K]

Answer:

1) -66

Step-by-step explanation:

Given:

a=4

b=-5

c=-7

=a+2bc

=4+2*-5*7

=4+(-10*7)

=4-70

=-66

=3a

=3(4)

=12

Hope this helps ;) ❤❤❤

7 0

3 years ago

Read 2 more answers

What formula to use <br> Answer

77julia77 [94]

Check the picture below.

now, since we know what "f" is, let us use the CNT triangle with the small COR one.

$\bf \cfrac{36+f+30}{36}=\cfrac{48+32+g}{48}\implies \cfrac{36+24+30}{36}=\cfrac{48+32+g}{48} \\\\\\ \cfrac{90}{36}=\cfrac{80+g}{48}\implies \cfrac{5}{2}=\cfrac{80+g}{48}\implies 240=160+2g \\\\\\ 80=2g\implies \cfrac{80}{2}=g\implies 40=g$