Answer:
9.
Step-by-step explanation:
Count the number of digits after the first digit,
This is 9.
Answer:ill help all triangles should equal to 180 hope it did help you
Step-by-step explanation:
Answer:
Step-by-step explanation:
Let the number be xx
Therefore the product of two and the number is 2xx
If there is eight more than that number, we can say that
2xx + 8
If it is assumed that the equation is equal to zero
2xx + 8 = 0
2xx = -8
xx = -8/2
xx = -4
Yes they are proportional
Formula:
-20/-15 = x/6
If you solve this equation for x it should evaluate to x = 8 which indicates it is proportional.
Notice the position of -20, -15, 6, and 8 in the chart and in the fraction
Multiply both sides by any number you want. I'll pick 2
x = -3 turns into 2x = -6 after doing so
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Add anything you want to both sides. I'll pick 7
x = -3 turns into x+7 = 4 after doing so
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you can do a combination of both multiplication and addition, as long as you do the same thing to both sides. First I'll do multiplication. I'm going to multiply both sides by 2 first
x = -3 turns into 2x = -6
then I'm going to add 7 to both sides
2x = -6 turns into 2x+7 = 1
If you were to solve 2x+7 = -1, then you'd get to x = -3 again
As a check, replace x with -3 and we have...
2x+7 = 1
2(-3)+7 = 1
-6+7 = 1
1 = 1
we get a true statement, which helps confirm we have the right equation.
