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3 years ago

2.5 milliliters of ammonia requires blank milliliters of distilled water ?please help

Mathematics

1 answer:

Ivenika [448]3 years ago

5 0

Answer:

175 to 177 mll

Step-by-step explanation:

i searched online

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Question 2: use the image and your knowledge of the isosceles triangle to find the value of x

pav-90 [236]

Answer:

x is 66 degrees

Step-by-step explanation:

since its a isosceles, two of the angles should be the same.

5 0

3 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

Jan received -22 points on her exam. She got 11 questions wrong out of 50 questions. How much was Jan penalized for each wrong a

svp [43]

2 points for each incorrect answer.

6 0

3 years ago

Read 2 more answers

Select the fraction that is NOT in lowest terms . which of these fractions is not in lowest term?

Kisachek [45]

Answer:

14/21

Step-by-step explanation:

14/21 is divisible by 7, and can reduce to 2/3

6 0

3 years ago

80% of what(?) games is 32 games..?

exis [7]

Answer=40 games

32games x games
________=________
80% 100%

Cross Multiply
80x=3200
divide both sides by 80
x=40games

80% of 40games is 32 games

3 0

3 years ago

Read 2 more answers