Using your equation from #2, how many hours did the plumber work at your home? Solve the equation from #2

Answers

Answer 1

Answer:

Answer:

the answer i got was 3 which would be none of the above bc i minused 40 on both sides to get 150 then i divided 150/50 which got me 3.

Step-by-step explanation:

:) your welcome

Answer 2

Answer:

Answer:

h=3

Step-by-step explanation:

50h+40=190

50h=190-40

50h=150

h=150/50=3

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The probability of it raining in a town on a spring day is 1/3. What is the probability that t will rain next Tuesday and not rain next Wednesday?a. 2/9
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(PLEASE HELP AND PLEASE EXPLAIN)!!!

Answers

the answer is 2/3 and once again, i had this question on my math test on probability. the answer is 2/3 because its 2 days it could possibly rain on ( Tuesday and Wednesday). since the probability of it already raining is 1/3, multiply it by 2, and you get 2/3.

1/3 x 2/1 = 2/3

hopefully my answer helps you

16. FINANCIAL LITERACY A specific car's fuel economy in miles per gallon can beapproximated by f(x) = 0.00000056x4 - 0.000018x3 - 0.016x2 + 1.38x - 0.38,

where x represents the car's speed in miles per hour. Determine the fuel economy

when the car is traveling 40, 50, and 60 miles per hour.

Answers

Answer:

a) 29.50 miles per gallon b) 29.87 miles per gallon c) 28.19 miles per gallon

Step-by-step explanation:

A specific car fuel economy (miles/gallon) = f(x) = 0.00000056x^4 - 0.000018x^3 - 0.016x^2 + 1.38x - 0.38

where x represents the car speed in miles per hour.

when x = 40 miles per hour

A specific car fuel economy (miles/gallon) = f(x) = 0.00000056(40)^4 - 0.000018(40)^3 - 0.016(40)^2 + 1.38(40) - 0.38 = 1.4336 - 1.152 - 25.6 + 55.2 - 0.38 = 29.50 miles per gallon

Similarly,

when x = 50

A specific car fuel economy (miles/gallon) = f(x) = 0.00000056(50)^4 - 0.000018(50)^3 - 0.016(50)^2 + 1.38(50) - 0.38 = 3.5 - 2.25 - 40 + 69 - 0.38 = 29.87 miles per gallon

Similarly,

when x = 60

A specific car fuel economy (miles/gallon) = f(x) = 0.00000056(60)^4 - 0.000018(60)^3 - 0.016(60)^2 + 1.38(60) - 0.38 = 7.26 - 3.89 - 57.6 + 82.8 - 0.38 = 28.19 miles per gallon

Classify the system of equations 1/3x+y+2=0 1/2x+y-5=0 A. intersecting B. parallel C. coincident

Answers

Answer: A. intersecting

Step-by-step explanation:

1. To solve this problem and classify the system of equations shown above, you can graph it has you can see in the graph attached.

2. As you can see the lines intersect each other, this means that the system of equation has one solution and the lines are intersecting.

3. Therefore, the answer is the option A: Intersecting.

Answer:

A. intersecting

Step-by-step explanation:

write the equations in the from of y = mx + c

Where m = slope

c = y-intercept.

1/3x + y + 2 = 0

1/3x + y = -2

y = -1/3x - 2

1/2x + y - 5 = 0

1/2x + y = 5

y = -1/2x + 5

The equations are not parallel

-1/3x - 2 = -1/2x + 5

1/2x - 1/3x = 5 + 2

1/6x = 7

x = 7× 6/1

= 42

y = -1/3×42 -2

= -14 - 2

= -16

The equations intersect at point (42,-16)

$(4)/(9)$ ×m= 72 what is M?

Answers

Hello lets solve this! :)
$\sf(4)/(9)m = 72\n\n\sf{Multiply~(9)/(4)~on~both~sides~to~isolate~m}\n\n(4)/(9)m * (9)/(4) = 72* (9)/(4)\n\nm = 72* (9)/(4)\n\nm = 18 * 9\n\n\boxed{\bf{m=162}}$

Hope I helped! IIf you have any other questions or would like further explanation just let me know!! :)

(4/9)m=72
m=(72*9)/4
m=648/4
m=162

answer. m=162

Pretty, pretty, pretty please help!!!Which proportion models this problem?On a soccer team, 8 out of 19 players surveyed say they had two or more siblings. The league has 570 players. Which is the best prediction of the number of players in the league that have two or more siblings? A. x/8 = 19/570 B. x/570 = 19/8 C. x/570 = 8/19 D. x/19 = 8/570

Answers

8 of 19 players said that they had 2 or more siblings.

8 out of 19 is equal to what out of 570

8/19 = x/570

This proportion can be written in different ways.

8/19 = x/570 cross multiplies to 19*x = 8*570

The task is to find a proportion among the answer options that cross multiplies to the same equation.

Option C is x/570 = 8/19. That cross multiplies to 19*x = 8*570 and is the correct answer.

You decide to make a beanbag in the shape of a sphere with a diameter of 120 millimeters. You will need to find the volume to know how many beans to put in the bag. What is the volume? Use 3.14 to approximate pi.

Answers

Answer:

The volume is $904,320\ mm^(3)$

Step-by-step explanation:

we know that

The volume of the sphere is equal to

$V=(4)/(3)\pi r^(3)$

we have

$r=120/2=60\ mm$ ----> the radius is half the diameter

$\pi=3.14$

substitute the values

$V=(4)/(3)(3.14)(60)^(3)=904,320\ mm^(3)$