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3 years ago

14. Solve for x. 110 (8x - 1) (5x + 36) (6x - 2) (7x+19) 116 110

Mathematics

2 answers:

marin [14]3 years ago

8 0

Answer:

ummm i dont have enough information

Step-by-step explanation:

12345 [234]3 years ago

7 0

Answer:

x=17

Step-by-step explanation:

Hexagon’s angles combined equals 720 so add up all the angles and you should get 26x=442, which is 17

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creativ13 [48]

Answer:

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Step-by-step explanation:

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3 years ago

The two triangles below are similar.

umka2103 [35]

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3 years ago

Carlos wants to practice piano 2 hours each day. He practices piano for 3/4 hour before school and 7/10 hour when he gets home.

CaHeK987 [17]

Answer:

Carlos has practiced piano for $\frac{29}{20}=1\frac{9}{20}$ hours.

Carlos needs to practice $\frac{11}{20}$ hours.

Step-by-step explanation:

We have been given that Carlos wants to practice piano 2 hours each day. He practices piano for 3/4 hour before school and 7/10 hour when he gets home.

First of all, we will find piano practiced before school and after school by adding both amounts as:

$\frac{3}{4}+\frac{7}{10}$

Make a common denominator:

$\frac{3*5}{4*5}+\frac{7*2}{10*2}$

$\frac{15}{20}+\frac{14}{20}$

Add numerators:

$\frac{15+14}{20}$

$\frac{29}{20}$

Therefore, Carlos has practiced piano for $\frac{29}{20}$ hours.

Now, we will subtract $\frac{29}{20}$ from 2 find number of hours Carlos needs to practice to reach his goal.

$2-\frac{29}{20}$

$\frac{2*20}{20}-\frac{29}{20}$

$\frac{40}{20}-\frac{29}{20}$

$\frac{40-29}{20}$

$\frac{11}{20}$

Therefore, Carlos needs to practice $\frac{11}{20}$ hours before going to bed in order to meet his goal.

7 0

3 years ago

An electronic manufacturing company has determined that the monthly cost of producing x units of its newest stereo is C(x) = 250

SCORPION-xisa [38]

Answer: The monthly marginal profit when 8250 units are produced and sold is 2,427,125 dollars

Step-by-step explanation:

C(x) = 2500 + 10x

D(x) = 60000 - x/1500

Use the demand equation to find the monthly revenue equation.

R(x) = x.D(x) = x(60000 - x/1500) = 60000x - x²/1500

Find the monthly profit equation

P(x) = R(x) - C(x) = 60000x - x²/1500 - (2500 + 10x) =

60000x - x²/1500 - 2500 - 10x = 60000x - x² - 3750000 - 15000x/1500 =

45000x - x² - 3750000/1500

use it to compute the monthly marginal profit for a production level of 8250 units

P(8250) = 45000*8250 - 8250² - 3750000/1500 = 2,427,125

The monthly marginal profit when 8250 units are produced and sold is 2,427,125 dollars

3 0

3 years ago

Read 2 more answers

What value of w solves the equation?<br><br> w^-3 = 1/64<br><br> w=___

Minchanka [31]

$w^{-3}= \frac{1}{64} \\ \frac{1}{w^3} = \frac{1}{64} \\ w^3=64 \\ w= \sqrt[3]{64}\\ w= \sqrt[3]{4^3} \\ w=4$

8 0

3 years ago