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Ksivusya [100]
3 years ago
14

It takes an older employee 13 hours to shovel the snow from a sidewalk, but a younger employee can shovel the same sidewalk in 1

0 hours. how long will it take them to clear the walk if they work together?
Mathematics
1 answer:
Ket [755]3 years ago
7 0
Work in rates per hour. These rates can then be added to form an equation

1/13 + 1/10  = 1/x   where  x is the time for both working together

multiply thru by 130x:-

10 x+ 13 x =  130

x = 130/23 =  5.65 hours  or about  6 hours 39 minutes
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Find the product of 503×6 explain how found
8090 [49]
The product of 503 × 6 is 3,009
You get this because when you line up the numbers with the 6 under the 3
First, you multiply 6 × 3 which is 9
Next, multiply 6 × 0 and that is 0
And finally you multiply 6 × 5 which is 30
8 0
3 years ago
Help me please as soon as possible
andrew11 [14]

Answer:

D

Step-by-step explanation:

6 0
3 years ago
The graph of g(x) is a transformation of the graph of f(x)=3x. Enter the equation for g(x) in the box. G(x) =.
dalvyx [7]

Function transformation involves changing the form of a function

The function g(x) is \mathbf{g(x) = 8(2)^x}

The function is given as:

\mathbf{f(x) = 3^x}

g(x) is an exponential function that passes through points (-2,2) and (-1,4).

An exponential function is represented as:

\mathbf{y = ab^x}

At point (-2,2), we have:

\mathbf{2 = ab^{-2}}

At point (-1,4), we have:

\mathbf{4 = ab^{-1}}

Divide both equations

\mathbf{\frac 42=\frac{ab^{-1}}{ab^{-2}}}

Simplify

\mathbf{2=\frac{b^{-1}}{b^{-2}}}

Apply law of indices

\mathbf{2=b^{-1+2}}

\mathbf{2=b}

Rewrite as:

\mathbf{b =2}

Substitute 2 for b in \mathbf{2 = ab^{-2}}

\mathbf{2 =a(2^{-2})}

This gives

\mathbf{2 =a(\frac 14)}

Multiply both sides by 4

\mathbf{a = 8}

Substitute 8 for (a) and 2 for (b) in \mathbf{y = ab^x}

\mathbf{y = 8(2)^x}

Express as a function

\mathbf{g(x) = 8(2)^x}

Hence, the function g(x) is \mathbf{g(x) = 8(2)^x}

Read more about exponential functions at:

brainly.com/question/11487261

8 0
3 years ago
Which equation has the solution to ×=8 answer choices in the PICTURE will mark Brainliest if answered correctly​
Ilia_Sergeevich [38]

Answer:

6h/top left

Step-by-step explanation:

count the number of <em>h</em>s. In this case there are 6 so it is 6h

8 0
3 years ago
Read 2 more answers
How do you find the radius of a right cylinder with having the height and surface area?
RoseWind [281]
So we know that surface area is top circle +bottom circle+ (circumfurence times height so) 2(π(radius)^2)+(height(2π(r))) so fill in the blanks
it's kind of hard to see but πr means pi times radius (r)
2πr^2+((4.2)(2)(π)(r))=628.3
factor out the 2 so  the equation would mean
2((πr^2)+(4.2πr))=628.3
divide both sides by 2
πr^2+4.2πr=314.15
what's interesting is that the first few digits of pi are 3.1415 so we aproximate pi as 3.14 and divide both sides by 3.1415
r^2+4.2r=100
subtract 100 from both sides
r^2+4.2r-100=0
factor
(x-8.11812)(x+12.3181)=0
so (if xy=0 then x or/and y must be 0 so)we set them to 0 so
x-8.11812=0
x=8.11812

second one
x+12.3181=0
x=-12.3181
since radii (or any legnth) cannot be negative, we can cross this solution out so

radius=8.11812
5 0
4 years ago
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