Answer:
200 cows
Step-by-step explanation:
7n+x=340 where n equals the number of years and x is the starting amount. Since he has been buying cows for 20 years, we plug 20 in for n. This would give you 140+x=340. After subtracting 140 from both sides you come to the conclusion that x=200.
Answer:
A mixed number has a whole number and a fraction. On the other hand an improper fraction is a fraction that's numerator is bigger than its denominator.
They are both same by both including fractions.
Step-by-step explanation:
6 different sketches each in 2 quantity is required.
<u>Explanation:</u>
Given:
Marta has $50
She wants to display 4 sketches in each row
Number of row is 3
Total number of sketches = 3 X 4
= 12
Since, Marta wants to include each type of sketch at least two times in her array, the number of sketches of each type would be 12/2 = 6
Therefore, 6 different sketches each in 2 quantity is required.
Answer:
A. x ≤
Step-by-step explanation:
-9x + 2 > 18 or 13x + 15 ≤ -4
-9x > 16 or 13x ≤ -19
x > or x ≤
From the choices given, only x ≤ proves to be correct answer.
Answer:
(x + 2)²
Step-by-step explanation:
x² + 4x + 4 ← is a perfect square of the form
(x + a)² = x² + 2ax + a²
Comparing coefficients of like terms
4 = 2² ⇒ a = 2 and 2ax = (2 × 2)x = 4x
Hence
x² + 4x + 4 = (x + 2)²