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Alekssandra [29.7K]
3 years ago
12

Explain how to identify the terms 3y-4-5y

Mathematics
1 answer:
anastassius [24]3 years ago
7 0
You would add the y's together and then you have your answer and then answer is -2y-4 
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The difference of the present ages of two sister in 5 yrs
Gekata [30.6K]

Answer:

4 and 9

Step-by-step explanation:

let their ages be x and x - 5, then in 4 years their ages will be

x + 4 and x - 5 + 4 = x - 1 , and the product is 104, thus

(x + 4)(x - 1) = 104 ← expand factors on left using FOIL

x² + 3x - 4 = 104 ( subtract 104 from both sides )

x² + 3x - 108 = 0 ← in standard form

(x + 12)(x - 9) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 12 = 0 ⇒ x = - 12

x - 9 = 0 ⇒ x = 9

However, x > 0 ⇒ x = 9

Thus

Their present ages are 9 and 9 - 5 = 4

4 0
3 years ago
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Citrus2011 [14]

Answer:

5

Step-by-step explanation:

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6 0
2 years ago
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Andrews [41]

Answer:

Step-by-step explanation:

6

2

2/3

4 0
3 years ago
Read 2 more answers
Henry is 3 times older than Julia. Rhianna is 1/2 as old as Julia. What formula shows the relationship between Henry and Rhianna
Sedbober [7]
The answer is A because if you make up an age for Julia for example Julia is 6 years old. In that case we multiply her age by 3 to figure out Henry's age which is 18. Rhianna is half as old as Julia is so that would make her 3 years old. In order for Henry which he is 18 years old to get to Rhianna's age which is 3 years old. you just divide 18 by 3 which is 6 years old. therefore the answer is A
8 0
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How do i find magnitude
Anvisha [2.4K]
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7 0
3 years ago
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