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murzikaleks [220]
2 years ago
7

Pleaseeeeeee help me this is a test for geometry, please read carefully before answering.

Mathematics
1 answer:
jek_recluse [69]2 years ago
4 0

Answer:

1. A

2. A

3. C

4. C

5. A

Step-by-step explanation:

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A diamond today cost ten dollars more than twice what it cost last year.The sum of the cost (last year and this year) is $2500.
nadya68 [22]

Answer:

The cost of the diamond last year is x = $ 830

Step-by-step explanation:

Let the cost of diamond last year = x

the cost of diamond present year = y

Given that diamond today cost ten dollars more than twice what it cost last year.

⇒ y = 2 x + 10  ------ (1)

The sum of the cost (last year and this year) is  = $ 2500

⇒ x + y = $ 2500 -------- (2)

Put the value of y in equation (2) from equation (1), we get

⇒ 2 x + 10 + x = $ 2500

⇒ 3 x = 2490

⇒ x = $ 830

& y = 2500 - 830

⇒ y = $ 1670

Therefore the cost of the diamond last year is x = $ 830

6 0
3 years ago
HOW TO SOLVE 2/5x=-25
Pepsi [2]

Answer:

x = - \frac{125}{2} = - 62.5

Step-by-step explanation:

Given

\frac{2}{5} x = - 25

Multiply both sides by 5 to clear the fraction

2x = - 125 ( divide both sides by 2 )

x = - \frac{125}{2} = - 62.5

6 0
2 years ago
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Kylie bought 10 chicken wings for $15. What was the cost of the wings in wings per dollar?
Reil [10]

Answer: $2.50

Step-by-step explanation:

3 0
3 years ago
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HELP PLZZZZ DOING
Natasha_Volkova [10]
Hi,
The answer would be unit C. The distance between -80 & 0 is 80. The distance from 0 to 15 is 15. So 80+15=95. Hope this helps.
6 0
3 years ago
A hiker walks at a speed of 3 2/5 km per hour. how many km will he walk in 3/4 of an hour
Art [367]

Answer:

2.55

Step-by-step explanation:

6 0
3 years ago
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