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3 years ago

Divide. (3 3/4)÷(−2 1/2) Enter your answer as a mixed number, in simplified form, in the box.

Mathematics

2 answers:

vekshin13 years ago

7 0

Answer:

1 1/2

Step-by-step explanation:

neonofarm [45]3 years ago

6 0

$3 \frac{3}{4} = \frac{15}{4}$

Because (4*3) + 3 = 15. Similary find the improper fraction for -2 1/2.

(15/4) / (-5/2) = -3/2

Convert -3/2 into a mixed fraction.

Therefore, -3/2 = -1 1/2.

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Please answer!!

Liula [17]

Answer first three words

Step-by-step explanation:

8 0

2 years ago

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:

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

8 0

3 years ago

Which of the following formulas would find the surface area of a right cylinder

Sliva [168]

Answer:

A and B

Step-by-step explanation:

Because the surface area is $\pi r^2*2\pi rh$

BA is the base, so $BA + 2\pi rh$ also works.

6 0

3 years ago

Latoya needs 2 gallons of juice to make a fruit punch for an event, but she only has a measuring cup. She knows there are 4 quar

n200080 [17]

Latoya would need 32 cups of juice to make 2 gallons.

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3 years ago

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Please help if you know it..Thanks ;)

Ahat [919]

Oh its super easy! 5w = 5 x W, so take one of the numbers like 2 and times it by 5 and add it to the rest of the problem, and see if the number you get is in your answers, if its not, then try the others!

7 0

3 years ago

Read 2 more answers