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2 years ago

PLS HELP THIS IS DUE TODAY!!!!!! NO LINKS, NO STEALING POINTS, AND ONLY CORRECT ANSWERS OR YOU WILL BE REPORTED!!!!!!!

Mathematics

2 answers:

rewona [7]2 years ago

4 0

Answer:

Step-by-step explanation:

Start by multiplying everything by 320, so that the y gets a unit factor:

$\frac{320}{16}x + \frac{320}{320}y - 29\cdot320 = 0$

simplify

$20x + y - 9280 = 0$

Now isolate y on the left:

$y = 9280 - 20x$

Change the equation y= in to a function of x:

$f(x) = 9280 - 20x$

Mnenie [13.5K]2 years ago

3 0

Should be A I’ll show you what I did though it might not make sense because I kind of did it in a weird way but yeah that answer should be A hope this helps :)

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During a sale at a bookstore, Joseph buys a book at full price. He is given a 50 percent discount on a second book of equal or l

NARA [144]

Total cost of books was 15 + 10 or 25. With the 50 % discount on the $10 book, the total is now $20. The total cost was reduced by (B) 20%.
$5 off the $25 price is a 20% discount.

5 0

3 years ago

A telemarketer sells subscriptions for magazines and receives a commission of 20 % on his sales. How much would his commission b

erastovalidia [21]

The commission of telemarketer will be $75.

Step-by-step explanation:

Given,

Worth of subscription sales = $375

Commission rate = 20%

Amount of commission = 20% of worth of subscription sales

Amount of commission = $\frac{20}{100}*375$

Amount of commission = $0.2*375$

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Keywords: percentage, multiplication

Learn more about percentages at:

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4 0

3 years ago

54394 plus 13768 Thank you

kakasveta [241]

Answer:

$54394 + 13768 \\ \\ = 68162$

5 0

3 years ago

Read 2 more answers

Find the values of x and y.

hodyreva [135]

Answer:

C, (x = 100, y = 10)

Step-by-step explanation:

hi again,

(2x - 70) = (x + 30), by the Alternate Exterior Angles

x - 70 = 30

x = 100

(2x - 70) + 5y = 180, by the Linear Pair Theorem

2(100) - 70 + 5y = 180

200 - 70 + 5y = 180

130 + 5y = 180

5y = 50

y = 10

8 0

3 years ago

I will be marking brainliest please help me with these questions.

krek1111 [17]

Answer/Step-by-step explanation:

1. To find the area of the shaded region, you'd find the area of the white rectangular shape, next, find the area of the whole triangular shape, then find the difference of their areas to get the area of the shaded region. Thus, the formula to use would be:

Area of shaded region = area of triangle - area of rectangle

Area of shaded region = ½*base*height - length*width

1. a. Volume of triangular prism = area of triangular base * height of prism

Volume of triangular prism = ½bh * H

Where,

b = 6 m

h = 4 m

H = 8 m

Substitute

Volume of prism = ½*6*4*8

Volume of prism = 96 m³

b. Volume of sphere = ⁴/3πr³

Where,

r = 9 cm

Substitute

Volume = ⁴/3*π*9³

Volume = ⁴/3*π*729

Volume ≈ 3,053.6 cm³ (nearest tenth)

2. Use Pythagorean theorem to find the height of the cone

radius of the cone (r) = ½(16) = 8 cm

Slant height (l) = 11 cm

height (h) = ?

Using Pythagorean theorem, we have:

h = √(l² - r²)

Substitute

h = √(11² - 8²)

h = √(57)

h ≈ 7.5 cm (nearest tenth)

b. Volume of the cone = ⅓πr²h

where,

r = 8 cm

h = 7.5 cm

Volume = ⅓*π*8²*7.5

Volume = 502.7 cm³ (nearest tenth)

7 0

3 years ago