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Sidana [21]
3 years ago
13

Solve the inequality 3(2x+9)<4(-x+3)

Mathematics
1 answer:
Yanka [14]3 years ago
7 0
3(2x + 9) < 4(-x + 3)....distribute through the parenthesis
6x + 27 < -4x + 12
6x + 4x < 12 - 27
10x < - 15
x < -15/10
x < -3/2 <===
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9(a+2)=9 <br> con comprobación plisss!!
icang [17]

Answer:

9a+18=9

9a=-9

a=-1

Step-by-step explanation:

6 0
3 years ago
PLEASE HELP!!!
riadik2000 [5.3K]
The answer is a if the line is dotted/dashed. The answer is c if the line isn't dotted/dashed.
7 0
3 years ago
Read 2 more answers
-6a=54 what is my answer
kupik [55]

Answer:

-9

Step-by-step explanation:

-6a=54

you're trying to get a by its self so divide by -6 on both sides . To get a=54/-6=-9

3 0
3 years ago
Two different families pay for entry into a water park.
icang [17]

Answer:

Adult ticket: $7

Child ticket: $2

Step-by-step explanation:

Set up a system of equations where a represents the cost of one adult ticket and c is the cost of one child ticket:

2a + 3c = 20

a + 4c = 15

Solve by elimination by multiplying the bottom equation by -2:

2a + 3c = 20

-2a -8c = -30

Add them together:

-5c = -10

c = 2

Now, we can plug in 2 as c to find the value of a:

2a + 3c = 20

2a + 3(2) = 20

2a + 6 = 20

2a = 14

a = 7

6 0
3 years ago
I need some help on this math problem, thanks so much
bekas [8.4K]

Answer:

The answer is C.

Step-by-step explanation:

Hit 'em with the Law of Sines.

sin(A)/a = sin(B)/b.

Let's say x is equal to "A", thus 5 is "a".

sin(x)/5 = sin(B)/b.

We could go for the obvious choice for "B", which would be the 90 degrees shown. To solve for the hypotenuse which will be "b", let's use the Pythagorean Theorem:

a^2 + b^2 = c^2

5^2 + 20^2 = c^2

25 + 400 = 425

sqrt(425) = about 20.6, which we can now substitute "b" with.

sin(x)/5 = sin(90)/20.6

sin(x)/5 = 1/20.6

sin(x)/5 = 0.04854...

sin(x) = 0.2427...

You can plug in sin^-1(0.2427) into your calculator, and you should end up with something like 14.047... which equates to answer choice C.

6 0
3 years ago
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