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2 years ago

Help help help math please help help

Mathematics

1 answer:

Vesna [10]2 years ago

6 0

Answer:

x=11

Step-by-step explanation:

We know that angles on a straight line equal 180 degrees, so we know that 8x+10+7x+5 = 180.

Simplify

15x+15=180

Solve

Take away 15 from both sides

15x = 165

Divide 165 by 15

x = 11

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An artist charges $980 for a portrait but gives a 5% discount. Calculate the cash price of the portrait.

Scrat [10]

Answer:

Step-by-step explanation:

1. A boutique is offering a 15% discount on a dress. Calculate the cash price for the dress if the marked price is $2300.

2. An artist charges $980 for a portrait but gives a 5% discount. Calculate the cash price of the portrait.

3. A television set has a selling price of $1950. A 10% discount is offered for cash. What amount is the cash price to the customer?

4. A store is having a sale on dining sets. The marked price is $47,320, however a discount of 12% is being offered for cash. Calculate the cash price of the dining set.

5. A tailor charges $2487 for a suit but gives a discount of 5%. What is the cash price for the suit?

6. A washing machine has a marked price of $33,000 and a discount of 6% is given for cash. What is the cash price of the washing machine?

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Light behaves mainly like a wave but it can also be considered to consist of tiny packages of energy called photons. Photons carry a fixed amount of energy but have no mass. They also found that increasing the intensity of light increased the number of electrons ejected, but not their speed.

4 0

2 years ago

Whats the greatest common factor of 18 and 27 and 54

vodomira [7]

Answer: 9

Step-by-step explanation:

From doing the math I think it should be 9

7 0

3 years ago

Read 2 more answers

What is a isoscelecs triangle

poizon [28]

A isosceles triangle is a triangle who has two sides of the same length

7 0

3 years ago

Margo borrows $900, agreeing to pay it back with 7% annual interest after 9 months. How much interest will she pay? Round your a

Veronika [31]

Answer:

$I=\$47.25$

Step-by-step explanation:

we know that

The simple interest formula is equal to

$I=P(rt)$

where

I is the Final Interest Value

P is the amount of money borrowed

r is the rate of interest

t is Number of Time Periods

in this problem we have

$t=9/12\ years\\ P=\$900\\r=0.07$

substitute in the formula above

$I=900(0.07(9/12))$

$I=\$47.25$

3 0

3 years ago

You are given a line that has a slope of 4 and passed through the point (3/8, 1/2). Which statements about the question of the l

alexgriva [62]

Answer:

Statement 1, 2 and 4 are true where as statement 3 is not true.

Step-by-step explanation:

Statement 1: The y-intercept is -1

Point (3/8, 1/2)

Slope = m = 4

y = mx + c

1/2 = 4(3/8) + c

1/2 = 3/2 + c

1/2 = 3/2 + 2c/2

-2 = 2c

c = -1

This statement is true as the y-intercept is -1.

Statement 2: The slope intercept equation is y= 4x - 1

slope = m = 4

y-intercept = c = -1

y = mx + c

y = 4x - 1

This statement is true as the slope intercept equation is y= 4x -1

Statement 3: The point slope equation is y - 3/8 = 4 (x - 1/2)

Point slope equation: y - y1 = m (x - x1)

Points: (x, y) (3/8, 1/2)

y1 = 1/2

x1 = 3/8

Slope = m = 4

y - 1/2 = 4 (x - 3/8)

This statement is not true as the slope intercept equation is y - 1/2 = 4 (x - 3/8) instead of y - 3/8 = 4 (x - 1/2).

Statement 4: The point (3/8, 1/2) corresponds to (x1, y1) in the point slope form of the equation

This statement is true as shown in statement 3's explanation where x1 = 3/8 and y1 = 1/2

6 0

3 years ago