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3 years ago

1. Solve each equation. For each step. identify the property used.

Mathematics

1 answer:

ehidna [41]3 years ago

6 0

Answer:

I will put the answer below, but here is a tip:

Use PEMDAS. PEMDAS IS THIS:

P ( ) parenthesis

E y+x exponents

M x multiplication

D ÷ division

A + addition

S - subtraction

Key:

Property used=PU

Step-by-step explanation:

Part A:

18= 6x(2x-3) PU=( ), y+x, x, & -

Part B:

8+3b-1 PU= y+x, +, & -

Part C:

=12 PU= =

Part D:

14+3n=8n-3x(1-4) PU= ( ), y+x, x, +, & -

Part E:

22x+11-4x-7 PU= y+x, +, & -

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What is the coefficient of x in 2x+3? 0 2 3 5

DerKrebs [107]

Answer:

The coefficient of x becomes 4. Hope it helps you

Step-by-step explanation:

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2 years ago

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2. Rich wrote a novel that sells for n dollars each. He received a bonus of $50,000 to sign the

Yuki888 [10]

The equation which represent total amount of income he earns from selling book is, $A=50000+\frac{109}{100}bn$

Since, Selling price of one novel is n dollars

So, selling price of b books is, $n*b=nb$

Since, he receives 9% commission on each book sale.

So, total commission he receives on selling of b books is,

$nb*\frac{9}{100}=\frac{9}{100}nb$

And also he received a bonus of $50,000 to sign the contract to write the book,

So, total amount of income he earns is represented by A,

$A=50000+bn+\frac{9}{100}bn\\\\A=50000+\frac{109}{100}bn$

Learn more:

brainly.com/question/7852218

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2 years ago

Find the distance between the points. Round to the nearest tenth if necessary. (4,3) |(1,-1)

user100 [1]

Three between the x values and four between the y values

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3 years ago

Patty bought a "P" poster to put on her wall, as shown below.

kolezko [41]

The area of the poster is B. 535.5 in².

Step-by-step explanation:

Step 1:

The poster consists of a rectangle and three-quarters of a circle.

The rectangle has a length of a and width of 3a. The circle has a radius of a.

We calculate the areas of the individual shapes and sum them up to calculate the entire area of the poster.

Step 2:

The area of a rectangle is the product of its length and its width.

If a = 10 inches, the length is 10 inches and the width is 30 inches.

The area of the rectangle $= (l)(w) = (10)(30)= 300.$

The area of the rectangle is 300 in².

Step 3:

The area of a circle $= \pi r^{2} .$ Here we only have three-quarters of a circle, so

The area of the given circle $=\frac{3}{4} ( \pi r^{2} ).$

Here r = a = 10 inches.

So the area of the circle $=\frac{3}{4} ((3.1415) (10^{2}) ) = 235.6125.$

The area of the circle is 235.6125 in².

Step 4:

The total area of the shape = The area of the rectangle + The area of the circle.

The total area of the shape $= 300 + 235.6125 = 535.6125.$

So the area of the poster is B. 535.5 in².

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3 years ago

1 load of bricks weigh twice as much as a load of sticks. the total weight of 4 loads of each is 771 kg. What is the total weigh

liq [111]

X=brick y=sticks
x=2y
4x+4y=771
4(2y)+4y=771
8y+4y=771
12y=771
y= 771/12
y = 64.25
x = 64.25*2=128.5

Answer:
128.5+64.25*3=321.25kg

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4 years ago