Step-by-step explanation:
(4x-1) × (2x+5)
3x × 7x
21x
The answer is = 21x
The answer is 33.6.
Add 6 to 2.4 and you get 8.4.
You then multiply 8.4 to 4 and get 33.6.
Answer:
Step-by-step explanation:
Let length = x and width =y
Area of rectangle = 20 square inches
x*y = 20
xy = 20 -------------(I)
Perimeter = 18 cm
2*length + 2*width = 18
2x + 2y = 18
Divide the entire equation by 2
x + y = 9
x = 9 -y -----------------(II)
Substitute x = 9 - y in equation (I)
(9 - y)*y = 20
9y - y² = 20
0 = 20 +y² - 9y
y² - 9y + 20 = 0
y² - 4y - 5y + 20 = 0
y(y - 4) - 5(y - 4) = 0
(y -4)(y -5) = 0
y - 4 = 0 ; y- 5 = 0
y = 4 ; y = 5
Length = 4 cm and width = 5 cm
Answer:
Step-by-step explanation:
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put closed circle on -4 then draw line from -4 ----------------------> like this
Answer: Gayle gave $ 131.58 to Marcie
Tom walked 87.96 miles
Step-by-step explanation:
1) Since, Marcie walked 26.42 miles on the 1st day, 32.37 on the next day, and 28.93 on the third day.
Thus, the total miles he walk = 26.42 + 32.37+28.93 = 87.72 miles
The cost of one mile = $ 1.50
Therefore, the cost of 87.72 miles = 87.72 × 1.50 = $ 131.58
2) Also, Tom walked 0.8 as far as Marcie on the first day, 0.7 as far on them second day and 0.9 as far on the third day.
Thus, the distance tom cover, on first day = 26.50
On second day = 32.44
On third day = 29.02
⇒ The total distance he covered = 26.50 + 32.44 + 29.20 = 87.96 miles