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vladimir2022 [97]
3 years ago
13

PLEASE EXPLAIN!!! NEED HELP!!

Mathematics
1 answer:
serious [3.7K]3 years ago
3 0
We will say 5 units=3 dollars
1/2 of 5 units=3 dollars (just so I don't get confused)
to find 1/3
times both sides by 2/3 to get
1/3 of 5 units=2 dollars
then times 2 both sides
1/3 of 10 units=4 dollars

so the value of 1/3 of 10 is 4
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Answer:

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Step-by-step explanation:

Let the length of the concrete pad = l

Let the width of the concrete pad = w

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Translating the word problem into an algebraic equation, we have;

l = 11 + w

<em>We know that, the area of rectangle, A = length * width</em>

A = l*w

<em>Substituting the values into the equation, we have;</em>

80 = (11 + w)w

<em>Expanding the bracket, we have;</em>

80 = 11w + w^{2}

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*Solving the quadratic equation by using factorization method*

w^{2} + 16w - 5w - 80 = 0

w(w + 16) - 5(w + 16) = 0

(w - 5)(w + 16) = 0

Width, w = 5 feet or w = -16 feet.

<em>Therefore, the width of the concrete pad is 5 feet or -16 feet.</em>

<em>To find its length, l;</em>

l = 11 + w

When w = 5 feet

l = 11 + 5

Length, l = 16 feet

When w = - 16 feet

l = 11 + (-16)

l = 11 - 16

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Gabriel unfolded a cube to form the net below.
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