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Marrrta [24]
3 years ago
8

Giselle bought a dress for $35 and three t-shirts. She used a coupon for $2.50 off each t-shirt. The total cost can be modeled b

y the expression
35+3(n.2.5). What does n - 2.5 represent?
Mathematics
2 answers:
Arturiano [62]3 years ago
8 0

Answer:

n - 2.5 represent the total cost on each T shirt after coupon is applied

Step-by-step explanation:.

Given parameters

Modeling of the total cost = 35 + 3(n - 2.5)

The general format of models like this is as follows;

Price + quantity (cost after coupon)

Coupon literally is a code that are used to obtain a discount on the current purchase

By comparison;

Price = 35 (i.e. current dress price).

Quantity = n (i.e. the number of shirts bought)

Lastly, cost after coupon = n - 2.5

It is stated that she applies a coupon on each T shirt

This can be interpreted to: removing a total discount of $2.50 from the three t+shirt

By removing, the expression is given as negative $2.5

Hence n - 2.5 represent the total cost on each T shirt after coupon is applied

yanalaym [24]3 years ago
5 0
N-2.5 represents the cost for each shirt being subtracted by $2.50 due to the coupon
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tatyana61 [14]

The value of the angles should be. (x-40°). , (x-20°), (½x-10°) , not (x-40°) + (x-20°)+(½x-10°)

Sum of all the interior angles of a triangle is 180°.

So a equation can be made by the given data,

(x-40°) + (x-20°) + (½ x-10°) = 180°

x-40°+x-20°+½x-10° = 180°

2x+½x -60°-10° = 180°

5/2 x - 70° = 180°

5/2 x = 180° + 70°

5/2 x = 250°

x = 250° × 2/5

x = 50° × 2

x = 100°

So the angles are

x-40° = 100°-40° = 60°

x-20° = 100°–20° = 80°

½x-10° = ½(100)° - 10° = 50° -10° = 40°

The answer can be checked by putting the values of the angle we got in the second statement i.e. Sum of all the interior angles of a triangle is 180°.

60° + 80° + 40° = 100° + 80° = 180°

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Step-by-step explanation:

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If I understand the drawing correctly than yes, because
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Step-by-step explanation:

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