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lara31 [8.8K]
3 years ago
12

Simplify: (15-6)^2-34/2 Please show strategies.

Mathematics
1 answer:
Alenkinab [10]3 years ago
8 0
Question: (15-6)^2 - 34/2
Answer: 64

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15 = -3(2c + d) (Solve for c)​
Paha777 [63]

Answer:

(15+3d)/6 = c

2 1/2 + 1/2d = c     (more simplified)

Step-by-step explanation:

15 = -3(2c +d)

15 = -6c -3d

+3d       +3d

15 +3d = -6c

/-6          /-6

(15+3d)/6 = c

2 1/2 + 1/2d = c

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There are 6 animals in the pen some are quails and some are goats if there are 20 legs in all how many quails and how many goats
yawa3891 [41]

Answer:

4 goats

Step-by-step explanation:

Let us represent

Number of quails = x

Number of goats = y

Quails have 2 legs

Goats have 4 legs

Hence:

There are 6 animals in the pen some are quails and some are goats

x + y = 6...... Equation 1

x = 6 - y

if there are 20 legs in all how many quails

2x + 4y = 20..... Equation 2

We substitute 6 - y for x in Equation 2

2(6 - y) + 4y = 20

12 - 2y + 4y = 20

Collect like terms

- 2y + 4y = 20 - 12

2y = 8

y = 8/2

y = 4 goats

The number of goats there are 4 goats

8 0
3 years ago
QUICK if w = -1, x = 6, and y = -3, find the following -7/3x + y to the 2nd power
pashok25 [27]

Answer:48484;8

Step-by-step explanation:

;7&4;&&4:

6 0
3 years ago
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Which problem can be solved using the expression 3 fifths divided by 5 eighths
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3/5 divided 5/8 = 24/25

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3 years ago
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