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Alik [6]
3 years ago
6

Ted can change an advertisement on a billboard in 5hr. Marie can do the same job in 2hr. How long would it take them if they wor

ked together? Write your answer as a fraction or mixed number, if necessary.
Mathematics
1 answer:
AnnyKZ [126]3 years ago
5 0

Answer:

Working together, they will finish the job in 1 hour, 25 minutes, and 42.6 seconds.

Step-by-step explanation:

Given that Ted can change an advertisement on a billboard in 5 hours, while Marie can do the same job in 2 hours, to determine how long it would take them if they worked together the following calculation must be performed:

Ted 1/5 in 1 hour

Marie 1/2 in 1 hour

1/5 + 1/2 = X

5X + 2X = 10

7X = 10

X = 10/7

X = 1 3/7

60/7 x 3 = 25.71

60 x 0.71 = 42.6

So, working together, they will finish the job in 1 hour, 25 minutes, and 42.6 seconds.

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Hope it helps
5 0
3 years ago
Solve the equation -5(s+30)=-17
zzz [600]

Answer:

s = -133/5 = -26.600 ⬇️

Step-by-step explanation:

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 (0 -  5 • (s + 30)) -  -17  = 0

Step  2  :

Step  3  :

Pulling out like terms :

3.1     Pull out like factors :

  -5s - 133  =   -1 • (5s + 133)

Equation at the end of step  3  :

 -5s - 133  = 0

Step  4  :

Solving a Single Variable Equation :

4.1      Solve  :    -5s-133 = 0

Add  133  to both sides of the equation :

                     -5s = 133

Multiply both sides of the equation by (-1) :  5s = -133

Divide both sides of the equation by 5:

                    s = -133/5 = -26.600

One solution was found :

                  s = -133/5 = -26.600

7 0
3 years ago
What are the slope and y intercept of the linear function? Please help
kow [346]
FIND THE SLOPE
The line passes through (0,1) and (2,0)
Use formula of the slope to find the slope
m = (y₂ - y₁)/(x₂ - x₁)
m = (0-1)/(2-0)
m = -1/2
The slope is -1/2

FIND THE Y-INTERCEPT
The y-intercept is the value of y when the line intersects y axis. The line intersects y axis in point (0,1). The value of y is 1. So the y-intercept is 1.

Answer: second option
8 0
3 years ago
What is 1/3 + 1/2<br>*please help*
Tom [10]
\frac{1}{3}+\frac{1}{2}

Re-write with common denominator, in this case 6:

\frac{1 \times 2}{3 \times 2}+\frac{1 \times 3}{2 \times 3}

Add:
\frac{2}{6}+\frac{3}{6}=\frac{5}{6}
7 0
4 years ago
Read 2 more answers
Can someone help plz?
Alex17521 [72]

Answer:

1. 665.1075

Step-by-step explanation:

<em>the area of a hexagon is Area = (3√3 s2)/ 2 where s is the length of a side of the regular hexagon </em>

5 0
3 years ago
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