Answer:
<h2> (-1, 3)</h2>
Step-by-step explanation:
2x + y = 1 ⇒ y = 1 - 2x
3x - y = -6
3x - (1 - 2x) = -6
3x - 1 + 2x = -6
+1 +1
5x = -5
÷5 ÷5
x = -1
y = 1 - 2(-1) = 1 + 2 = 3
Answer:
Correct answer: QD = 29
Step-by-step explanation:
Given:
QR = 21 half the longer diagonal
RD = 20 half shorter diagonal
QD = ? rhombus side
The diagonals of the rhombus are known to be perpendicular to each other.
We will calculate the side of the rhombus using Pythagorean theorem.
QD² = QR² + RD²
QD² = 21² + 20² = 441 + 400 = 841
QD = √841 = 29
QD = 29
God is with you!!!
Step-by-step explanation:
Total songs = 193
Probability of pop song = 39/193 = 0.202
we have 3 things here. 30% out of 100% of the 450 phones
In order to find the missing percent we multiply the 450 by 100 and divide its product by 30
The answer is 1500
This can be calculated easily.
As any two digit number can be written in the following form:
N= 10x +y
If we reverse the number now, it would become:
N' = 10y + x
So if we subtract one from the other, we should obtain 18 ( as mentioned in the question ).
N-N'= 18
=> x-y = 2
Thus, any number whose digits differ by two would be an aswer to the question.
The only numbers which satisfy this are : 13,24,35,46,57,68,79
But this would not be true for any 3 or more digit number.
