Answer:
Option (3)
Step-by-step explanation:
Integers are the numbers which don't have a fractional part (having positive of negative notations)
Example; -2, -1, 0, 1, 2,...
Let the two integers are 0 and 2,
Subtraction of these integers will be = 0 - 2
= 0 + (-2)
Here opposite of 2 has been added to 0.
That means subtraction of two integers is to add the opposite of the integer being subtracted.
Option (3) will be the answer.
9514 1404 393
Answer:
(x, y) = (452.5, -986)
Step-by-step explanation:
Dividing the first equation by 300 gives the standard form equation ...
12x +5y = 500
Dividing the second equation by 180 gives the standard form equation ...
22x +10y = 95
Subtracting the second of these equations from twice the first gives ...
2(12x +5y) -(22x +10y) = 2(500) -(95)
2x = 905 . . . . . simplify
x = 452.5 . . . . .divide by 2
The second equation tells us ...
y = (95 -22x)/10 = (95 -9955)/10 = -9860/10 = -986
The solution is (x, y) = (452.5, -986).
<u>Answer:</u>
∠DBC = 40°
<u>Step-by-step explanation:</u>
We are given a figure where we know that the angle m∠1 = 65°, m∠2 = 60° and m∠6 = 85°. With the help of these given measures of the angles, we are to find the measure of the angle m∠DBC.
Since the sum of angles in a triangle is equal to 180 degrees, so:
∠1 + ∠2 + ∠3 = 180
∠3 = 180 - (65 + 60)
∠3 = 55°
Also ∠6 and ∠B are alternate interior angles so if ∠6 = 85° then ∠B is also = 85°.
Now that we know ∠3 and ∠B, we can find ∠DBC:
∠DBC = 180 - (85 + 55)
∠DBC = 40°