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Salsk061 [2.6K]
2 years ago
9

A truck is painting Traffic lines along a highway the truck paints 8 miles of lines in 3 hours at the rate how many miles can a

truck paint in 12 hours.
Mathematics
1 answer:
butalik [34]2 years ago
6 0

Answer:

32 miles

Step-by-step explanation:

12 . 8 = 96

96 : 3 = 32

\frac{12 . 8}{3} = 32 miles[/tex]

You might be interested in
F(x) = <img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%2B7%7D%20-%5Csqrt%7Bx%5E2%2B2x-15%7D" id="TexFormula1" title="\sqrt{x+7} -\
elena-s [515]

Answer:

x >= -7  ................(1a)

x >= 3   ...............(2a1)

Step-by-step explanation:

f(x) =  \sqrt{x+7}-\sqrt{x^2+2x-15}  .............(0)

find the domain.

To find the (real) domain, we need to ensure that each term remains a real number.

which means the following conditions must be met

x+7 >= 0  .....................(1)

AND

x^2+2x-15 >= 0 ..........(2)

To satisfy (1),  x >= -7  .....................(1a) by transposition of (1)

To satisfy (2), we need first to find the roots of (2)

factor (2)

(x+5)(x-3) >= 0

This implis

(x+5) >= 0 AND (x-3) >= 0.....................(2a)

OR

(x+5) <= 0 AND (x-3) <= 0 ...................(2b)

(2a) is satisfied with x >= 3   ...............(2a1)

(2b) is satisfied with x <= -5 ................(2b1)

Combine the conditions (1a), (2a1), and (2b1),

x >= -7  ................(1a)

AND

(

x >= 3   ...............(2a1)

OR

x <= -5 ................(2b1)

)

which expands to

(1a) and (2a1)   OR  (1a) and (2b1)

( x >= -7 and x >= 3 )  OR ( x >= -7 and x <= -5 )

Simplifying, we have

x >= 3  OR ( -7 <= x <= -5 )

Referring to attached figure, the domain is indicated in dark (purple), the red-brown and white regions satisfiy only one of the two conditions.

3 0
3 years ago
Read 2 more answers
What is the answer to 3x(2 1/5)=
solniwko [45]

Answer:

<h2>(6 3/5) * (x)</h2>

Step-by-step explanation:

3x(2 1/5)= (6 3/5) * (x)

5 0
3 years ago
Read 2 more answers
What is 2x(x+5)=4 using the quadratic formula
antoniya [11.8K]
X= \frac{-5(+/=) \sqrt{33} }{2}
Or it would be approximately: x≈ 0.37228132, -5.37228132
Hope this helped! ;P
4 0
3 years ago
What is the value of a in the equation 5a-10b=45, when b=3?
Ainat [17]

Answer:5a-30=45


Step-by-step explanation:

So something times 5 minus 30 will give you 45


8 0
3 years ago
Read 2 more answers
****Brainliest to best answer!!***<br> Thank u to everyone who helps!
Dmitrij [34]

Answer:

A

Step-by-step explanation:

When you read the question it says that her average speed from the library to the gym is 15 mph less than her speed from her home to the library. So x - 15 is what describes that situation.

If it is A it cannot be anything else.

B is incorrect. x - 15 is not a time. It is a rate. It can be used to develop the amount of time, but by itself it is still A.

C is incorrect. Her average speed from her house to the library is x

D is incorrect. The distance is given as the same as from her home to the library as  from the library to the gym. Both are 4

7 0
3 years ago
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