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2 years ago

The equation is:Answer: the number of labor was :

Mathematics

1 answer:

Brilliant_brown [7]2 years ago

6 0

Answer:

equation: 1368 = 380 +52x
labor hours: 19

Step-by-step explanation:

The desired equation will relate labor cost, parts cost, and total cost.

The total cost is the sum of the parts cost and the product of labor hours and labor rate. We're told to use x to represent labor hours.

total cost = part cost + (labor rate)(labor hours)

1368 = 380 + 52x

This equation can be solved in 2 steps:

988 = 52x . . . . . . . step 1, subtract 380 from both sides

19 = x . . . . . . . . . . step 2, divide both sides by the coefficient of x

The number of labor hours was 19.

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A sporting goods store sold 30% of the baseball bats in stock. If they had 420 bats in stock, how many did they sell?

Tema [17]

Answer:they sold 126 bats

Step-by-step explanation:

30/100= 3/10

3/10x420=3x42=126

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3 years ago

What type of number is -12 a rational or irrational or integer

Ivanshal [37]

Irrational due to the negative sign

8 0

3 years ago

3.The following are real data from Santa Clara County, CA. As of a

zepelin [54]

I) the probability that the person is female is 8.33%.
II) the probability that the person has a risk factor heterosexual contact is 6.40%.
III) the probability that the person is female or has a risk factor of IV drug user is 23.47%.
IV) the probability that the person is female and has a risk factor of homosexual is 0%.
V) the probability that the person is male and has a risk factor of IV drug user is 15.13%.
VI) the probability that the person is female given that the person got the disease from heterosexual contact is 69.38%.

Given the data mentioned in the table, the following calculations must be performed to obtain the requested probabilities:

I.-

(0 + 70 + 136 + 49) / (2,146 + 463 + 60 + 135 + 0 + 70 + 136 + 49) = X

255/3059 = X

0.0833 = X

II.-

196/3059 = X

0.0640 = X

III.-

(255 + 463) / 3059 = X

718/3059 = X

0.2347 = X

IV.-

0/3059 = X

0 = X

V.-

463/3059 = X

0.1513 = X

VI.-

136/196 = X

0.6938 = X

Therefore, I) the probability that the person is female is 8.33%, II) the probability that the person has a risk factor heterosexual contact is 6.40%, III) the probability that the person is female or has a risk factor of IV drug user is 23.47%, IV) the probability that the person is female and has a risk factor of homosexual is 0%, V) the probability that the person is male and has a risk factor of IV drug user is 15.13%, and VI) the probability that the person is female given that the person got the disease from heterosexual contact is 69.38%.

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3 0

2 years ago

How do you find the slope equation of x+4y=16

tankabanditka [31]

x+4y=16

4y= -x +16

y = -1/4x + 4

so slope = -1/4

5 0

3 years ago

What values of x and y satisfy the system of equations {10x+3y=−5−5x−4y=10? (0,−53) (25,−3) (−2,0) (12,−103)

Kitty [74]

Answer:

The solution of the equation

( 0.4 ,-3)

Step-by-step explanation:

Explanation:-

Step(i):-

Given system of equations

10 x+3 y = −5 ...(i)

- 5 x - 4 y = 10 ...(ii)

Multiply (i) with '5'

10 × 5 x + 3×5 y = - 25

50 x + 15 y = 25 ...(iii)

Multiply (ii) with '10'

-5 × 10 x - 4×1 0 y = 100

- 50 x - 40 y =100 ...(iv)

Step(ii):-

Solving (iii) and (iv)

50 x + 15 y =- 25

- 50 x - 40 y =100

- 25 y = 75

Dividing ' - 25' on both sides, we get

y = -3

substitute y = -3 in equation (i) , we get

10 x+3 y = −5

10 x - 9 = - 5

10 x = -5 + 9

$x = \frac{4}{10}$

x = 0.4

Final answer:-

The solution of the equation ( 0.4 ,-3)

7 0

3 years ago