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zheka24 [161]
2 years ago
5

What is 2b - a? If b=12 and a=5

Mathematics
2 answers:
pogonyaev2 years ago
5 0

Answer:

24-5=19

Step-by-step explanation:

1. (2b)= 2(12)

2. a=5

3. 24-5

4.9

Aleks [24]2 years ago
4 0
2b-a
2(12)-5
24-5
19
The answer is 19
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0.75(2 + 6 x 4 - 2 x 7 - 2) A. 1 B. 5.25 C. 8.5 D. 22.5
Alekssandra [29.7K]

Hey there!

ORIGINAL EQUATION:
0.75(2 + 6 x 4 - 2 × 7 - 2)

WORKING WITHIN the PARENTHESES:
2 + 6 x 4 - 2 × 7 - 2

= 2 + 24 - 2 × 7 - 2

= 26 - 2 × 7 - 2

= 26 - 14 - 2

= 12 - 2

= 10


NEW EQUATION:

0.75(10)


SIMPLIFY IT!
7.50 ≈ 7.5


Therefore, your answer should be: 7.5



~Amphitrite1040:)

5 0
3 years ago
Fourteen less than five times number is three times a number. Define a variable, write an equation, and solve to find the number
goldenfox [79]
5a-14=3a
-5a      -5a
-14= -2a
----    ----
-2       -2
<span>7=a

a is the variable, </span><span>5a-14=3a and a equals 7.</span>
8 0
3 years ago
The ratio of the width of a rectangle to it's length is 3:4. The length of the rectangle is 36 cm. Find the rectangles width.​
Fiesta28 [93]

Answer:

27 cm

Step-by-step explanation:

So the ratio you have is

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Divide 36 (length) by the ratio length. 36÷4=9

They are multiples of nine, so multiply the width by 9 to get the 3.

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You have 27:36

If you want to check it, divide both by 9 and you get 3:4

3 0
3 years ago
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gayaneshka [121]

Answer:0.367

Step-by-step explanation:

Given

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The total no of ways of selecting 3 items out of 13 items is

\Rightarrow ^{13}C_3

Probability is

\Rightarrow P=\dfrac{^6C_2\times ^7C_1}{^{13}C_3}=\dfrac{105}{286}\\\Rightarrow P=0.367

6 0
3 years ago
F^-1(x)=(-3/4)+2 What would be the equation of this simplified?
Vinvika [58]
I hope this helps you

4 0
3 years ago
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