Answer:
Step-by-step explanation:
+7-1
Answer:
(4 × 3) × 6 = 4 × (3 × 6) shows the Associative Property of Multiplication.
Answer:
30cm x 72 cm
Step-by-step explanation:
The perimeter is the measurements of all sides added together. Let's start by dividing the perimeter by 2, so we have the sum of the length and width. This gives us 102cm. Let's call the width <em>x</em>, and the length <em>y</em>. We know <em>y</em> is <em>x</em> times 2 plus 12. (2x + 12) So, we know [x + y = x + (2x + 12)]. So let's solve.
x + y = x + (2x + 12)
102 = x + (2x + 12)
102 = 3x + 12
102 - 12 = 3x + 12 - 12
90 = 3x
90/3 = 3x/3
30 = x
The width is 30cm.
Answer:
72 eggs
Step-by-step explanation:
1 dozen=12
6 dozen=12*6=72
Answer:
4th option
Step-by-step explanation:
(f - g)(x)
= f(x) - g(x)
= 
- (3x² - 3x - 5)
= 4x² - 3x² + 3x + 5 ← collect like terms
= x² + 3x + 5
