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3 years ago

Write the algebric expression of the difference of'a' and 'b'

Mathematics

2 answers:

iogann1982 [59]3 years ago

7 0

Answer:

$\boxed{a-b}$

Step-by-step explanation:

Difference of a and b is also the subtraction of b from a.

$a-b$

Lilit [14]3 years ago

5 0

Answer:

a - b

Step-by-step explanation:

To find the difference between a and b, subtract b from a.

This will give you a - b.

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2 years ago

Which expression has the same value as 5 + ( − 4 ) 5+(−4)?

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2 years ago

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faltersainse [42]

The price of one vegetarian special lunch is $7 and price of one chicken special lunch is $8.

Step-by-step explanation:

Let,

Price of one vegetarian special lunch = x

Price of one chicken special lunch = y

According to given statement;

21x+40y=467 Eqn 1

28x+36y=484 Eqn 2

Multiplying Eqn 1 by 28

$28(21x+40y=467)\\588x+1120y=13076\ \ \ Eqn\ 3$

Multiplying Eqn 2 by 21

$21(28x+36y=484)\\588x+756y=10164\ \ \ Eqn\ 4$

Subtracting Eqn 4 from Eqn 3

$(588x+1120y)-(588x+756y)=13076-10164\\588x+1120y-588x-756y=2912\\364y=2912$

Dividing both sides by 364

$\frac{364y}{364}=\frac{2912}{364}\\y=8$

Putting y=8 in Eqn 1

$21x+40(8)=467\\21x+320=467\\21x=467-320\\21x=147$

Dividing both sides by 21

$\frac{21x}{21}=\frac{147}{21}\\x=7$

The price of one vegetarian special lunch is $7 and price of one chicken special lunch is $8.

Keywords: linear equation, elimination method

Learn more about elimination method at:

#LearnwithBrainly

5 0

3 years ago

I need help on this one

Tanzania [10]

What is it? I will help. :)

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3 years ago

? Question

Delvig [45]

Answer:

i^32=1

i^25=i

i^86=-1

i^51=-i

Step-by-step explanation:

Follow the Rule of Four of I for this,

i^1= $\sqrt{-1}$

I^2=-1

I^3=-i

I^4=1

5 0

3 years ago

Read 2 more answers