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Sliva [168]
3 years ago
5

Bill bought 2 cups of coffee for $3 each and 2 muffins for $3 each. he used this expression to calculate the total amount he spe

nt. (2 × 3) (2 × 3) what is another expression to calculate the total amount spent?
Mathematics
2 answers:
Nikolay [14]3 years ago
8 0

Answer: A. (2 + 2) x 3

Step-by-step explanation: Bill bought 2 cups of coffee for $3 each and 2 muffins for $3 each. he used this expression to calculate the total amount he spent. (2 × 3) + (2 × 3)

What is another expression to calculate the total amount spent?

A) (2 + 2) × 3

B) 2 + (3 + 3)

C) 2 × 3 × 3

D) (2 + 3) × (3 + 2)

The distributive property of multiplication allows you multiply a sum by multiplying each individual added separately and then adding the sum.

Hence, the addenda are 2 cups of coffee and 2 muffins. The multiplier is $3 since both have the same price. This gives the cost of the individual addend and on addition gives the total amount spent.

Therefore, (2 + 2) x 3 is correct.

Ostrovityanka [42]3 years ago
7 0
A) (2+2)times3 because you will have to distributive properties, 
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Choose Yes or No to tell whether each expression is equivalent to –43p – 25.
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Answer:

–43p + (–25)  is  EQUIVALENT to  –43p – 25.

Step-by-step explanation:

<u>The options are MISSING.</u>

The needed options are:

1. 25 – 43p

2. 25 – 43p

3. –25p –43

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Taking each option and simplifying it , we get:

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2. 25 – 43p

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3. –25p –43

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4. –43p + (–25)

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5 0
3 years ago
Help please 50 points!​
uranmaximum [27]

Answer:

A and B

Step-by-step explanation:

we would like to solve the following equation:

\rm\displaystyle 5 - 2x =  \sqrt{ {2x}^{2} + x - 1 }  - x

to do so isolate -x to the left hand side and change its sign:

\rm\displaystyle 5 - 2x + x =  \sqrt{ {2x}^{2} + x - 1 }

simplify addition:

\rm\displaystyle 5 - x =  \sqrt{ {2x}^{2} + x - 1 }

square both sides:

\rm\displaystyle (5 - x {)}^{2}  =  (\sqrt{ {2x}^{2} + x - 1 }  {)}^{2}

simplify square of the right hand side:

\rm\displaystyle (5 - x {)}^{2}  =  {2x}^{2} + x - 1

use (a-b)²=a²-2ab+b² to expand the left hand side:

\rm\displaystyle  {x}^{2}  - 10x + 25=  {2x}^{2} + x - 1

swap the equation:

\rm\displaystyle   {2x}^{2} + x - 1 =  {x}^{2}  - 10x + 25

isolate the right hand side expression to the left hand side and change every sign:

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simplify:

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rewrite the middle term as 13x-2x:

\rm\displaystyle   {x}^{2} + 13x - 2x  -  26=  0

factor out x:

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factor out -2:

\rm\displaystyle   x({x}^{} + 13)- 2(x   +  13)=  0

group:

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\displaystyle    \begin{cases}x- 2  = 0\\ x   +  13=  0 \end{cases}

solve for x:

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solve the inequality for x:

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