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3 years ago

Help me I sorta get it but still help

Mathematics

2 answers:

Luda [366]3 years ago

8 0

I am pretty sure it’s just a and b. i hope this helps.
explanation:
-1/2(4-2+6x)
-2+1-3x
-1-3x
so basically if you just simplify the equation you’ll get the answers.

lara31 [8.8K]3 years ago

5 0

Answer:

ok so u jus gotta pick all that apply or is equal to -1/2(4 - 2 + 6x). i hope this helpsssssssssss

Step-by-step explanation:

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3 years ago

the speed of a stream is 4mph. If a boat travels 92 miles downstream in the same time that it takes to travel 46 miles upstream,

Elanso [62]

Answer:

12 miles per hour

Step-by-step explanation:

Let speed of boat in still water be "x"

and speed of current be "c"

So, downstream rate would be "x + c"

And, upstream rate would be "x - c"

Now, given c = 4

We can use the distance formula, D = RT, where

D is distance, R is rate, and T is time

to solve this.

Downstream:

D = RT

92 = (x+4)(t)

Upstream:

D = RT

46 = (x-4)(t)

Both the times are same, we can equate both the times. Lets simplify first:

t = 92/(x+4)

and

t = 46/(x-4)

Equate:

$\frac{92}{x+4}=\frac{46}{x-4}$

Now, cross multiply and solve for x to get our answer:

$\frac{92}{x+4}=\frac{46}{x-4}\\92(x-4)=46(x+4)\\92x-368=46x+184\\46x=552\\x=12$

Speed of Boat (in still water) = 12 mph

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3 years ago

a dozen eggs cost 1.32 at the grocery store. How much profit would a restaurant make if they sold 1 scrambled egg for 99 cents?

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3 years ago

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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