3 years ago

3⁄2 c + 23 = 38 solve to-step equations

Mathematics

1 answer:

Kaylis [27]3 years ago

6 0

Answer:

Step-by-step explanation:

c=10

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The Buses leave to the Hall every 16 minutes and the central buses leave every 10 minutes.Both leave at 4 p.m.Find the next time

ikadub [295]

Answer:

Both leave at 4 pm . The next time they will leave at 5:20 pm

Step-by-step explanation:

Taking LCM of 16 and 10

16= 2*2*2*2

10= 2*5

LCM= 2*2*2*2*5= 80

1 hour = 60 mins

80/60= 1 hour 20 minutes

Both leave at 4 pm . The next time they will leave at 5:20 pm

4 0

3 years ago

2. Write the number with the<br> same value as 28 tens.

Olegator [25]

The value could also be 28 ones

5 0

4 years ago

In a class of 25 students, 24 of them took an exam in class and 1 student took a make-up exam the following day. The professor g

gavmur [86]

Answer:

The value is $\mu_n = 73.6$

Step-by-step explanation:

From the question we are told that

The total number of students is $N = 25$

The number of student that took exam in class is n = 24

The number that took make up exam is k = 1

The average score of the first 24 students is $\mu = 74$

The standard deviation is $\sigma = 8.9$

The average score of the student who took make up test is $\= x = 64$

Generally the new average is mathematically represented as

$\mu_n = \frac{( n * \mu ) + \= x }{N}$

$\mu_n = \frac{( 24 * 74 ) + 64 }{25}$

$\mu_n = 73.6$

7 0

3 years ago

Topic:Mixed Power Problems

ale4655 [162]

=(3x^3-y^2)^2 [ open it in (a-b)^2 form]

=(3x^3)^2-2.3x^3.y^2+(y^2)^2

=3^2x^3×2-6x^3y^2+y^2×2

=9x^6-6x^3y^2+y^4. ans

7 0

3 years ago

Help on all 3 please

azamat

2. |x|=-7
-x=-7. x=-7
x=7. x=-7

8 0

3 years ago

Read 2 more answers