3 years ago

Im struggling on #16 please help

Mathematics

1 answer:

Art [367]3 years ago

3 0

The answer is: 10+5x=$13.50

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This system has one solution.

mr_godi [17]

Answer: It is 2.

Step-by-step explanation:

Make both equation equal to each other and solve for x, as following:

- Add like terms.

- Factor the equation.

$8x-14=x^{2}+4x-10\\x^{2}+4x-10-8x+14=0\\x^2-4x+4=0\\(x-2)(x-2)=0\\(x-2)^2=0\\x=2$

Substitute the value of x obtained into any of the original equations to obtain the y-coordinate.

Then, this is:

$y=8(2)-14\\y=16-14\\y=2$

3 0

3 years ago

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Need to find what X is......56.4/14.4 = x/10.8

k0ka [10]

Answer:

x = 42.3.

Step-by-step explanation:

56.4 /14.4 = x / 10.8

Cross multiply:

14.4x = 56.4 * 10.8

x = (56.4 * 10.8) / 14.4

x = 42.3

6 0

4 years ago

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The yearly profits of a new small business, in hundreds of dollars, during its first 10 years can be modeled by p(x) = x3 + x2 –

zhuklara [117]

Dso in year 6
for x=6

p(6)=6³+6²-2(6)+27
p(6)=216+36-12+27
p(6)=252+15
p(6)=267
in hundreds of dollars
time 100

267 times 100=26700

D is answer

3 0

4 years ago

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What's the y intercept of the following equation?<br> 10y = 20x + 30

nikklg [1K]

Answer:

$10y = 20y + 30 \\ y = 2y + 3 \\ y \: intercep = 3$

3 0

3 years ago

John read the first 144 pages of a novel, which was 3 pages less than 1/3 of the novel. Write an equation to determine the total

igomit [66]

Answer: 441 pages

Step-by-step explanation:

$\frac{1}{3}p-3=144\\\frac{1}{3}p=147\\3(\frac{1}{3})p=147(3)\\p=441$

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3 years ago