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gogolik [260]
2 years ago
14

Half the sum of the books read by Rita and Renee equals six books. The difference in the number of books they read equals 2. How

many books did each girl read?
Mathematics
1 answer:
Usimov [2.4K]2 years ago
8 0
5 and 7 because if have the sum is 6 that means that its 12 and 5 plus 7 is 12. 5 plus 2 is 7
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For (x - 1)(x - 7) to equal 0, either (x - 1) or (x - 7) must equal what?
Kisachek [45]
(x - 1)(x - 7) = 0

{x}^{2} - 8x + 7 = 0

{x}^{2} - 8x = - 7

- 7x = \frac{ - 7}{x}

x = \frac{ - 7}{ \frac{x}{ - 7} } \implies x = x \implies x \in \mathbb{R}

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8 0
3 years ago
Alright i have 4 separate questions to ask for this one i will label them number one through 4 so you don't get mixed up
CaHeK987 [17]

Answer:

1: C. $3,474.38

2: B. $44.10

C: C. $570

Step-by-step explanation:

1.

4250 - (4250 x 0.25)

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3187.50 + (3187.50 x 0.09)

3474.375 which rounds up to

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2.

52 - (52 x 0.2)

41.6

41.6 + (41.6 x 0.06)

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500 + (500 x 0.2)

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600 - (600 x 0.05)

570

4 0
2 years ago
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ABC is a straight line. BD=BC Angle ADB=80° Angle BDC=20° Work out the size of the angle marked x. Give reason for your answer.
fredd [130]

Answer:

hai

Step-by-step explanation:

Pak Awi mau beli jam tangan Rolex hulk submarine dengan harga 300jt. Dia mau beli 2 tahun lagi

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Uang pak awi sekarang hanya 100jt, berapa yang harus pak awi tabung tiap bulan nya agar 2 tahun lagi

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3 0
2 years ago
The graph of the function f(x) = (x + 2)(x + 6) is shown
Vitek1552 [10]

Answer:

The function is negative for all real values of x where

-6 < x < -2.

Step-by-step explanation:

f(x) = (x +2)(x + 6)

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x = -2     or x = -6

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7 0
2 years ago
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Fittoniya [83]

Answer:

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6 0
2 years ago
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