3 years ago

Help pls brainlist available

1 answer:

7 0

Answer:

yes is available and its jelp full to all students

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damaskus [11]

(10x + 4) + (5x-4) ≈ 180

solve for x and you get x≈12

plug 12 in to 5x-4 and you get 56

7 0

4 years ago

notka56 [123]

Answer is the 3rd one

5 0

4 years ago

mariarad [96]

Answer:

The speed of sound is $340\ m/s$

Step-by-step explanation:

Let

x-----> the speed of sound

we know that

$50\%=50/100=0.50$

$0.50x=170$

solve for x

$x=170/0.50=340\ m/s$

5 0

4 years ago

RSB [31]

Answer:

x would equal -3

Step-by-step explanation:

want to get rid of 14 from each side so 14 - 14 would get rid of that 20 - 14 = 6 now you still have a negative 2x

-2x / -2x gives you X to be alone now divide 6 with -2 which gives you -3

8 0

3 years ago

Sholpan [36]

Answer:

Step-by-step explanation:

Multiply 14 by 4

5 0

3 years ago