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zmey [24]
3 years ago
15

Twice the difference of 7 and a number is 4 times the number

Mathematics
1 answer:
iris [78.8K]3 years ago
8 0
Let the number be n.

Then 2(7-n) = 4n, or 14 - 2n = 4n, or 14 = 6n.  Then n = 7/3 (answer)
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Using arithmetic operations, rewrite this polynomial in standard, simplest form. (3x2 + 9x + 6) − (8x2 + 3x − 10) + (2x + 4)(3x
Diano4ka-milaya [45]

Answer:

x∧2+4x-16

Step-by-step explanation:


6 0
3 years ago
What are the dimensions of the largest rectangular field that can be enclosed with 64m of wire?​
Natalka [10]

Step-by-step explanation:

perimeter = 2*length + 2*width

area = length*width

perimeter = 64

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If we say it can be a square, then...

perimeter = 4*side

64 / 4 = side

side = 16 meters

So the dimensions would be 16 m x 16 m

7 0
3 years ago
If a and b are independent events, p(a)=0. 20, and p(b)=0. 80, what is p(b|a)?.
goldfiish [28.3K]

Answer:

P(B | A) = 0.80

Step-by-step explanation:

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Therefore, P(B | A) = 0.80

3 0
3 years ago
In a championship basketball game, Paula Zimmerman scored twice as many points as Maria Kaminsky. If the total number of points
Strike441 [17]

Answer:

x=34

y=17

Step-by-step explanation:

Let Paula's score be= x

Let Maria's score be=y

<u>Given</u><u>:</u>

x=2y

x+y=51

<u>Substitution</u><u>:</u>

2y+y=51

<u>Formula</u><u>:</u>

2y+y=51

3y=51

y=17

x=2y

x=2(17)

x=34

<u>Proof</u><u>:</u>

x+y=51

34+17=51

51=51

Hope this helps ;) ❤❤❤

5 0
3 years ago
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zysi [14]

Answer:

tan38 = 0.31

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sin77 = 0.99

Step-by-step explanation:

There are several free online calculators that can help you do this! I recommend Desmos!

7 0
3 years ago
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