Answer: 75 square
Explanation:
Width is X
Length is 3x
Every rectangle has 2 equal widths x 2 equal lengths
Perimeter is 2x + 2(3x) = 40
X = 5
Width is now 5in
Length is now 15in
Area is 75in^2
Half of a perimeter is length + width, which equals to 20in
4x = 20, CX = 5
= 75 sq
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Answer:
Solutions are (6,3) and (-2,3).
Step-by-step explanation:
From the first equation given we can write:
substituting for in the second equation given we get
∴ y=3
Putting y=3 in the first equation we get
x-2 = ±4
Hence x=6 or x=-2.
Answer:
-3
Three feet below the initial elevation
Step-by-step explanation:
The initial elevation is 224 feet.
We take descent to be negative and ascent to be positive.
The numerical addition expression is
We simplify this to obtain:
The negative sign means Sally is 3 feet below his initial elevation
Answer: 3 quarts
using the information 1 cup = 0.25 quarts, we can use dimensional analysis or a conversion factor to find the number of quarts in 12 cups.
start by expressing x as your unknown value being the number of quarts
there are 3 quarts in 12 cups
Step-by-step explanation: