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4 years ago

Hideki buys 2 sweaters for $18 each. He can use one of the following coupons: Coupon 1-:buy one, get one 40% off

Mathematics

2 answers:

Lady bird [3.3K]4 years ago

7 0

Answer:

Coupon 2

Step-by-step explanation:

If you were to use coupon 1 the price will be $28.80 because %40 of $18 will be $10.80 (18 x 0.40) then add it to the other 18$ and it will sum up to $28.80. If you were to use coupon 2 the price will be $27 because if you were to take %25 of the sum of both sweaters ($36) it would be $27 (36 x 0.25).

Mama L [17]4 years ago

7 0

Answer:

Coupon 2

Step-by-step explanation:

My math teacher explained it to me

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Choose the answer based on the most efficient method as presented in the lesson.

natita [175]

The next step is to add 9

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4 years ago

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Given: ABCD is a trapezoid, m∠1=m∠2, m∠3=m∠4, AB = CD, AC ∩ BD = O <br> Prove: m∠AOD = m∠BCD

LiRa [457]

Since AB = CD the trapezoid is isosceles, which means that ∡A = ∡D

Therefore also ∡2 = ∡3 (they are half of the congruent angles)

For the properties of parallel lines (BD and AD) crossed by a transversal (BD) we have ∡3 = ∡CBD.

Now consider triangles AOD and BCD:
∡OAD (2) = ∡ADO (3) = ∡CBD (3) = ∡CDB (4)

T<span>he sum of the angles of a triangle must be 180°, t</span>herefore:
∡AOD = 180 - ∡2 - ∡3
∡BCD = 180 - ∡3 - ∡4

∡AOD = ∡BCD because their measure is the difference of congruent angles.

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4 years ago

What is the area of the trapezoid? 34 square units 42 square units 84 square units 118 square units.

Anvisha [2.4K]

Answer:

42 square units

Step-by-step explanation:

For a better understanding, I add an EFGH Rectangle.

The area of EFGH Rectangle = p x l

The area of EFGH Rectangle = 10 x 8

The area of EFGH Rectangle = 80cm²

The area of BHA Triangle = 1/2 x a x t

The area of BHA Triangle = 1/2 x 6 x 4

The area of BHA Triangle = 2 x 6

The area of BHA Triangle = 12cm²

The area of AGD Triangle = 1/2 x a x t

The area of AGD Triangle = 1/2 x 4 x 2

The area of AGD Triangle = 4cm²

The area of CFD Triangle = 1/2 x a x t

The area of CFD Triangle = 1/2 x 2 x 6

The area of CFD Triangle = 6cm²

The area of BEC Triangle = 1/2 x a x t

The area of BEC Triangle = 1/2 x 8 x 4

The area of BEC Triangle = 4 x 4

The area of BEC Triangle = 16cm²

The area of the trapezoid = EFGH Rectangle - (BHA Triangle + AGD Triangle + CFD Triangle + BEC Triangle)

The area of the trapezoid = 80 - (12 + 4 + 6 + 16)

The area of the trapezoid = 80 - 38

The area of the trapezoid = 42cm²

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2 years ago

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Flura [38]

Answer: $22

Step-by-step explanation:

First we calculate for the sale price.

We have to find how much is 60% of 50.

We do this by:

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Now we have to add a 10% sales tax. This is done by multiply the percentage and adding 1 to it like this.

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This is what we will multiply the $20 by.

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Answer:

Hi friend here is your answer: C

Step-by-step explanation:

There friend hope it helps friend

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