MATHEMATICS MIDDLE SCHOOL

Saac applied the steps below to find the product of (4.2)(–5.4).Step 1: (4.2)(–5.4) = (–5.4)(4.2)
Step 2: = (–5.4)(4) + (–5.4)(0.2)
Step 3: = (–21.6) + (–1.08)
Step 4: = –22.68

Which step shows where Isaac applied the distributive property?
Step 1
Step 2
Step 3
Step 4

Answers

Answer 1

Answer:

Answer: Step 2

Step-by-step explanation:

The distributive property is given by :-

(a+b)c=ac+bc, where a,b and c are any number.

The given expression : $(4.2)(-5.4)$

The above expression can be written as :

$(4+0.2)(-5.4)$

When we apply distributive property to the given expression, we get

$(4)(-5.4)+(0.2)(-5.4)\n\n=(-5.4)(4)+(-5.4)(0.2)$

Hence, Step 2 shows the distributive property applied by Isaac.

Answer 2

Answer: Step 2: = (–5.4)(4) + (–5.4)(0.2) this step is applied the distributive property

hope it helps

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Meg wants to take tennis lessons. In the chart, four instructors are listed with what they charge. Which instructor gives the best deal?

Mark $100 for 10 hours

Rick $80 for 9 hours

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Answers

So,

Mark wants $100 for 10 hrs., or $10/hr.

Rick wants $80 for 9 hrs., or $(80)/(9) /hr. or$ $8.89/hr.

Steve wants $75 for 8 hrs., or $ $(75)/(8)$ /hr. or $9.38/hr.

Finally, Andy wants $60 for 5 hrs., or $12/hr.

We can see that Rick offers the best deal, at $8.89/hr.

Mark charges $10.hour. Rick charges $8.89.hour. Steve charges $9.38/hour. Andy charges $12/hour. The best deal is to take tennis lessons from Rick.

So Rick would be the choice

A tall man, who is sitting up straight in his seat, is completely blocking John's view at the cinema. John is 10m from the 4m high screen. The man is 1m in front of John. How far would the man need to lower his head and shoulders if John is to be able to see all of the screen ?

Answers

i would answer that but to bissy finding my mine answer

Please help me on my homework ASAP.

Answers

For #10, the answer is 38x40 which equals 1,520.

For #12, you divide the shape into a square and a rectangle then find the area of each shape. After that, you add them together. 4x4=16 10x4=40 40+16= 56.

# 10 is 1520 because 40*38=1520
# 12 is 16 meters for the square because 4*4=16
4 meters for the rectangle because 10*4=40

Hope this helps
Good luck on the homework

20 points please help

look at image below

Answers

I believe the answer is a rotation of 90 degrees counter clockwise around the origin and then a transformation of four units to the left

Hope this helped!

90° counterclockwise around the origin, and transformation 4 units left

Ingrit is buying a $97 coat. It is on sale for 30% off. What is the sale price of the coat?

Answers

Answer:

67.9 U.S. dollars

Step-by-step explanation:

Answer: 67.90 dollars

========================================

Work Shown:

30% = 30/100 = 0.30

Take 30% of 97 to get 0.30*97 = 29.10

So Ingrit saves $29.10

The sale price is 97.00 - 29.10 = 67.90

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Here's another way to get the answer:

The discount is 30% which means she saves 30% and pays the remaining 70% (since 30% + 70% = 100%)

70% = 70/100 = 0.70

Take 70% of the original price and you'll get the sale price

0.70*97 = 67.90

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