3 years ago

Find the solution: 2x=(360/4)

1 answer:

6 0

The correct answer for this question is "45."

Based from the equation that is shown
2x = (360 / 4)

First, we need to simplify 360 / 4 (if it can be simplified).
So we get,

2x = 90

Then, Multiply both sides by (1/2) leaving x behind.
(1/2) * 2x = (1/2) * 90
x = 45

so the value of x is 45.

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Is 3/5 greater then 3/6

Tcecarenko [31]

Yes, for 3/5= 18/30 and 3/6= 15/30

4 0

3 years ago

The 8th and 20th terms of an arithmetic sequence are 20 and 56 respectively. What is the 1st term of the sequence.

Ostrovityanka [42]

Answer:

Step-by-step explanation:

$a_n=a_1+d(n-1)\\\\a_8=a_1+d\cdot7\\\\a_{20}=a_1+d\cdot19\\\\a_{20}-a_8=a_1+19d-(a_1+7d)=12d\\\\56-20=2d\\\\12d=36\\\\d=3\\\\\\ a_1+3\cdot7=20\\\\a_1=20-21=-1$