Multiply the first equation by two to get 2x + 2y = 4.
Subtract the second equation from the first equation to get -3y = -12
y = 4.
Plug y back in to get x = -2.
The student forgot to distribute the P into rt as well in the second line.
So, to solve for r correctly:
A=P(1+rt)
A=P+Prt
A-P=Prt
r=(A-P)/Pt
Applying the area of a rectangle, the cost to make the part of the compass is: $129.85.
<h3>What is the Area of a Triangle?</h3>
Area of a triangle = 1/2(base)(height).
Find the height of the triangle using the Pythagorean theorem:
Height = √(5² - 1²) ≈ 4.9 cm.
Base = 2 cm
Area of the two triangles = 2[1/2(base)(height)]
Area of the two triangles = 2[1/2(2)(4.9)] = 9.8 cm².
Cost to to make this part of the compass = 9.8 × $13.25 = $129.85.
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Answer:
hour
Step-by-step explanation:
Let x represent time taken by dog to run the 1 and three tenths -mile state fair race.
We have been given that a dog won a race at the local fair by running 3 and one fourth miles in exactly 2 hours.
We will use proportions to solve our given problem as:
We will equate both speeds as:
Cross multiply:
Therefore, it will take hour to complete mile state fair race.
Answer:
Gold coins are an example of commodity money. ... Dollar bills are an example of fiat money because their value as slips of printed paper is less than their value as money. Bank money consists of the book credit that banks extend to their depositors.
Step-by-step explanation: