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3 years ago

15

Divide. Write your answer as a fraction in simplest form. 9/10÷(−6/5)=

1 answer:

hoa [83]3 years ago

6 0

Put (9/10) ÷ (-6/5) into a calculator and you get -. 75 (aka - 1/4)

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Y= -5x-10<br> y=6x+12<br><br> solve by substitution

Mamont248 [21]

Answer:

<em>(-2,0) x=-2 y=0 </em>

Step-by-step explanation:

<u>Solve for the first variable in one of the equations, then substitute the result into the other equation</u>

<u>Hope this helps!</u>

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3 years ago

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How many minutes is 7:43 to 8:41

frez [133]

It is 58 minutes. :]

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2 years ago

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In 10 minutes, the top three finishers in a hot dog eating contest consumed a total of 130 hot dogs. the winner, person a, ate 8

Vera_Pavlovna [14]

Let x be how many hot dogs person b ate

therefore, person a ate x+8 hotdogs
and person c ate x-10 hotdogs

they all ate 130 hotdogs in total so
x + x + 8 + x - 10 = 130
3x -2 = 130
3x = 132
x = 44

so person b ate 44 hotdogs
person a ate 8 more so 52 hotdogs
and person c ate 10 less than person b so 34 hotdogs

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2 years ago

Help Please Brainliest!

Vera_Pavlovna [14]

The answer is about 9.73 times as many pixels!

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2 years ago

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1)Sheyna drive to the lake and back. It took two hours less time to get there than it did to get back. The average speed on the

ipn [44]

Answer:

8 hours

Step-by-step explanation:

Given:

Sheyna drives to the lake with average speed of 60 mph and

$v_1 = 60\ mph$

Sheyna drives back from the lake with average speed of 36 mph

$v_2 = 36\ mph$

It took 2 hours less time to get there than it did to get back.

Let $t_1$ be the time taken to drive to lake.

Let $t_2$ be the time taken to drive back from lake.

$t_2-t_1 = 2$ hrs ..... (1)

To find:

Total time taken = ?

$t_1+t_2 = ?$

Solution:

Let D be the distance to lake.

Formula for time is given as:

$Time =\dfrac{Distance}{Speed }$

$t_1 = \dfrac{D}{60}\ hrs$

$t_2 = \dfrac{D}{36}\ hrs$

Putting in equation (1):

$\dfrac{D}{36}-\dfrac{D}{60} = 2\\\Rightarrow \dfrac{5D-3D}{180} = 2\\\Rightarrow \dfrac{2D}{180} = 2\\\Rightarrow D = 180\ miles$

So,

$t_1 = \dfrac{180}{60}\ hrs = 3 \ hrs$

$t_2 = \dfrac{180}{36}\ hrs = 5\ hrs$

So, the answer is:

$t_1+t_2 = \bold{8\ hrs}$

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3 years ago