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3 years ago

Evaluate the expression when y=5 and x=32 x-3y

Mathematics

1 answer:

iren [92.7K]3 years ago

6 0

Answer:

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

x - 3y

y = 5, x = 32

<u>Step 2: Evaluate</u>

Substitute in variables: 32 - 3(5)
Multiply: 32 - 15
Subtract: 17

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Marina86 [1]

Answer:

<h3>The reason which is incorrect is in Step 2 and reason 2</h3>

Step-by-step explanation:

Given that Logan's equation is $\frac{3}{2}\times (x-10)=50$

<h3>To simplify and find the which reason is incorrect :</h3>

Logan's solution and reasoning for solving an equation are shown below:

Step1 $\frac{3}{2}\times (x-10)=50$

Reason 1: Given

Step2 $\frac{3}{2}\times x-10+10=50+10$

Reason 2: Addition Property of Equality

Step3 $\frac{3}{2}\times x=60$

Reason 3: Simplify

Step4 $\frac{3}{2}\times x \times (\frac{2}{3})=60\times (\frac{2}{3})$

Reason 4: Division Property of Equality

Step5 $x=40$

Reason 5: Simplify

<h3>The reason which is incorrect is in Step 2 and reason 2</h3><h3>The corrected steps are</h3>

Step1 $\frac{3}{2}\times (x-10)=50$

Reason 1: Given

Step2 $\frac{3}{2}\times (x)-\frac{3}{2}\times (10)=50$

Reason 2: Distributive property

Step3 $\frac{3}{2}\times x-15=60$

Reason 3: Simplify

Step4 $\frac{3}{2}\times x-15+15=50+15$

Reason 4: Addition Property of Equality

Step5 $\frac{3}{2}\times x=65$

Reason 5: Simplify

Step6 $\frac{3}{2}\times x \times (\frac{2}{3})=65\times (\frac{2}{3})$

Reason 6: Division Property of Equality

Step7 $x=\frac{130}{3}$

Reason 7: Simplify

<h3 />

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4 years ago

What is the answer to this question?

den301095 [7]

Answer:

your answer will be option B

you are right

Step-by-step explanation:

have a nice day!!

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3 years ago

Raven has been babysitting to earn enough money to buy a concert ticket that costs $24. She already had $12 and she earned $20 b

AlladinOne [14]

Answer:

The money Raven has left after she buys the concert ticket is $8 .

Step-by-step explanation:

As given

Raven has been babysitting to earn enough money to buy a concert ticket that costs $24.

She already had $12 and she earned $20 babysitting.

Total money Raven have = $12 + $20

= $ 32

Money Raven has left after she buys the concert ticket = Total money Raven have - Cost of the concert ticket .

Money Raven has left after she buys the concert ticket = 32 - 24

Money Raven has left after she buys the concert ticket = $8

Therefore the money Raven has left after she buys the concert ticket is $8 .

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3 years ago