Answer:
a) Shawn's error was that he Multiplied 15 by 2x only. He didn't Multiply 15 by 7
b) The difference, in square feet, between the actual area of Shawn’s garden and the area found using his expression is given as
98 square feet
Step-by-step explanation:
The area in, square feet, of Shawn’s garden is found be calculating 15(2x + 7). Shawn incorrectly says the area can also be found using the expression 30x + 7.
The correct area =
15(2x + 7).
= 30x + 105 square feet
The error in Shawn’s expression is
= 15(2x + 7)
= 30x + 7 square feet
Shawn's error was that he Multiplied 15 by 2x only. He didn't Multiply 15 by 7
The difference, in square feet, between the actual area of Shawn’s garden and the area found using his expression is given as
30x + 105 square feet - 30x + 7 square feet
= 30x + 105 - (30x + 7)
= 30x - 30x + 105 - 7
= 98 square feet
Answer: 81 total apples were sold.
Step-by-step explanation:
63 : x green apples
7 : 2
63/7 = 9
9 * 7 = 63
9 * 2 = 18
x = 18
18 + 63 = 81
Answer:
3/11
Step-by-step explanation:
A ratio for 3 cups to 8 cups is written as 3:8.
To turn this into a fraction, you must put the first number over the sum of both numbers.
3/3+8
3/11