Answer:
x=3
Step-by-step explanation:
The equation will be 3+6x=21 since we know that the soft drink costs 3 dollars and he bought 6 candy bars(6 times x or 6x). We also know that the total cost for this merchandise is 21 dollars. Now you solve the equation! First subtract 3 from both sides(since the inverse for addition is subtraction we SUBTRACT 3 from bothe sides). You are left with 6x=21-3 or 6x=18. Now you divide Each side by 6(because the inverse operation of multiplication is division). You have the answer! x=18/6 or x=3! Hope it helped!!
The slope is half, since when the equation is divided by two so that the y value is one, the x coefficient is half, so the slope is half.
Answer: A) f'(x)=4x+12
B) 10
Step-by-step explanation:
Answer:
I think rhombus.
Step-by-step explanation:
Because a rhombus has all sides equal but no right angles. Squares and Rectangle both have right angles. And trapezoids have all different sides.
Answer:
<h2>d. 10a + 5b</h2>
Step-by-step explanation:
5(a + a + b) = 5(2a + b)
use the distributive property:
<em>a(b + c) = ab + ac</em>
<em />
= 5 · 2a + 5 · b =10a + 5b