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mamaluj [8]
3 years ago
6

Train A and train B leave a central station at the same time. They travel the same speed, but in opposite directions, with train

A heading towards station A, and train B heading towards station B. Train A reaches station A after 3 h. Train B reaches station B after 214 h. Station A and Station B are 420 mi apart.
What is the rate of the trains?



Enter your answer in the box.
Mathematics
1 answer:
Marysya12 [62]3 years ago
7 0

Answer:

90 MPH

Step-by-step explanation:

speed = distance / time

sum=  2 1/2 + 4 = 6 1/2 = 13/2

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Nestlé water pumps 1.2 million gallons per day out of G. Springs to put in bottles.
Delicious77 [7]

Answer:

  3.2×10⁷ liters/week

Step-by-step explanation:

\dfrac{1.2\cdot 10^6\,gal}{1\,day}\cdot\dfrac{7\,day}{1\,week}\cdot\dfrac{8\,pint}{1\,gal}\cdot\dfrac{1\,L}{2.11\,pint}=\dfrac{1.2\cdot 10^6\cdot 7\cdot 8\,L}{2.11\,week}\\\\\approx 3.2\cdot 10^7\,\dfrac{L}{week}

5 0
3 years ago
Read 2 more answers
Hannah is cooking enough lentils for lentil soup and a lentil salad. The soup recipe calls for ¾ cup of lentils. The salad recip
Sidana [21]

Answer:

Recipe for a cup of lentils = 6 scoops

Recipes for a salad = 12 scoops

Step-by-step explanation:

Hannah is cooking enough lentils for lentil soup and a lentil salad. The soup recipe calls for ¾ cup of lentils. The salad recipe calls for 1 ½ cups of lentils. But Hannah only has a ⅛ measuring scoop.

How many scoops of lentils will Hannah need for both recipes?

a) Recipe for a cup of lentils

The soup recipe calls for ¾ cup of lentils.

Hannah only has a ⅛ measuring scoop.

Hence,

3/4 ÷ 1/8

= 3/4 × 8/1

= 6 scoops

Recipes for a salad

The salad recipe calls for 1 ½ cups of lentils.

Hannah only has a ⅛ measuring scoop.

Hence,

1 1/2 ÷ 1/8

= 3/2 ÷ 1/8

= 3/2 × 8/1

= 12 scoops

7 0
3 years ago
A cup is 6.4 cm tall, not including a 0.6 cm lip. Cups are stacked inside one another. You may want to draw a diagram to help yo
NemiM [27]

H(c)=6.4+0.6c

6.4 is the constant


when the height of the cups is 18.4 the function is:

18.4=6.4+0.6c

then you subtract 6.4 from both side to get:

18.4 - 6.4=6.4 + 0.6c - 6.4

12=0.6c

c= 12/.6

c=20



plzzz mark brainiest

6 0
4 years ago
Read 2 more answers
4(2x - 1) + 3(2x + 5)​
mina [271]

Answer:

<h2><em>14 x + 11</em></h2>

Step-by-step explanation:

4*(2x - 1) + 3*(2x + 5)​ =

8x - 4 + 6x + 15 =

14 x + 11

4 0
2 years ago
A random sample of size 100 is taken from a population with the mean as 76 and the variance as 256. what is probability of getti
Blababa [14]

Given the population mean is \mu=76 and population standard deviation is \sigma=\sqrt{256} =16.

Now sample mean is \mu_X=76 and standard deviation of the sample mean is \sigma_X=\frac{\sigma}{\sqrt{n}} =\frac{16}{\sqrt{100}}=1.6.

Use Z-score for finding the probabilities. Use a standard normal distribution table.

a)The probability

P(74.4

b)The probability

P(X

c)The probability

P(X>78.4)=P(Z>\frac{78.4-76}{1.6}) \\  P(X>78.4)=P(Z>1.5) \\ P(X>78.4)=0.0668

8 0
4 years ago
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