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dsp73
3 years ago
11

Complete 5 A,B for 10 points.

Mathematics
1 answer:
lakkis [162]3 years ago
8 0

Answer:

y = (C-Ax) /B and x = (C-By)/A

Step-by-step explanation:

y

By = C-Ax

y = (C-Ax)/B

x

Ax = C-By

x = (C-By)/A

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At a farmers market strawberries cost $1.60 per pint, blueberries cost $2.30 per pint. A shopper bought twice as many pints of s
djverab [1.8K]

<em><u>4 pints of strawberries and 2 pints of blueberries are bought</u></em>

<em><u>Solution:</u></em>

Let "a" be the pints of strawberries bought

Let "b" be the pints of blueberries cost

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Cost per pint of blueberry = $ 2.30

<em><u>A shopper bought twice as many pints of strawberries as pints of blueberries</u></em>

Therefore,

a = 2b --------- eqn 1

<em><u>They spent a total of $11.00. Therefore we frame a equation as:</u></em>

pints of strawberries bought x Cost per pint of strawberry + pints of blueberries cost x Cost per pint of blueberry = 11

a \times 1.60 + b \times 2.30 = 11

1.6a + 2.3b = 11 --------- eqn 2

<em><u>Substitute eqn 1 in eqn 2</u></em>

1.6(2b) + 2.3b = 11

3.2b + 2.3b = 11

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Divide both sides by 11

b = 2

<em><u>Substitute b = 2 in eqn 1</u></em>

a = 2(2)

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3 years ago
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Step-by-step explanation:

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2{3x+2+4}=68

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x≈9.33

In order to cross-check this answer, we compute in the values so therefore,

3x+2=3(9.33)+2=27.99+2=29.99≈30

Now, substituting this value in the formula we get,

2(30+4)= 68

The reason for cross-checking was to re-assure because of the decimal value of 9.33, that is why I approximated the expression to 30 in order to get the exact value of 68. otherwise using the decimal value of 9.33 computes an answer of 67.98 which off by a difference of 0.2.

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The table gives the height of a tennis ball T seconds after the ball has been hit, where the maximum height is 4 feet.
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Answer:

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