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3 years ago

6

Ann wants to have dinner ready at 6:00p.m. A chicken casserole takes 35 minutes to bake and 15 minutes to prepare. After the cas

serole is done, Ann has rolls to warm up in the oven for five minutes. What time should she start preparing the casserole? I will Brainliest
a.4:55 p.m. b.5:00 p.m. c.5:05 p.m. d.5:10 p.m.

2 answers:

kondor19780726 [428]3 years ago

8 0

Answer: 5:05 pm. (C)

Step-by-step explanation:

For this, you have to add up the times. 35+15+5. That is 55 minutes. If it would take 55 minutes, you will want to subtract 55minutes from the time you want it to be done. This will give us 5:05pm.

Luda [366]3 years ago

4 0

Answer:

5: 05

Step-by-step explanation:

35 + 15 + 5 = 55

60 - 55 = 05

5:05

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A group of three undergraduate and five graduate students are available to fill certain student government posts. If four studen

creativ13 [48]

Answer:

$Pr = 0.4286$

Step-by-step explanation:

Given

Let

$U \to\\$ Undergraduates

$G \to$ Graduates

So, we have:

$U = 3; G =5$ -- Total students

$r = 4$ --- students to select

Required

$P(U =2)$

From the question, we understand that 2 undergraduates are to be selected; This means that 2 graduates are to be selected.

First, we calculate the total possible selection (using combination)

$^nC_r = \frac{n!}{(n-r)!r!}$

So, we have:

$Total = ^{U + G}C_r$

$Total = ^{3 + 5}C_4$

$Total = ^8C_4$

$Total = \frac{8!}{(8-4)!4!}$

$Total = \frac{8!}{4!4!}$

Using a calculator, we have:

$Total = 70$

The number of ways of selecting 2 from 3 undergraduates is:

$U = ^3C_2$

$U = \frac{3!}{(3-2)!2!}$

$U = \frac{3!}{1!2!}$

$U = 3$

The number of ways of selecting 2 from 5 graduates is:

$G = ^5C_2$

$G = \frac{5!}{(5-2)!2!}$

$G = \frac{5!}{3!2!}$

$G =10$

So, the probability is:

$Pr = \frac{G * U}{Total}$

$Pr = \frac{10*3}{70}$

$Pr = \frac{30}{70}$

$Pr = 0.4286$

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2 years ago

What is the least common denominator of 5/6 and 3/4?

ololo11 [35]

This lcd is also twelve

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2 years ago

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shtirl [24]

Answer:

(6y - 1)(6y + 1)

Step-by-step explanation:

To factorize completely, we may adopt the difference of 2 squares approach. The theory states that difference of two square is the product of the difference of the number and the sum of the numbers.

Such that

a² - b² = (a - b) (a + b)

Hence 36y² - 1

= 6²y² - 1²

= (6y)² - 1²

= (6y - 1)(6y + 1)

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3 years ago

Read 2 more answers

Help me please . quick :)

ycow [4]

Answer:

x= 1

QS = 10 cm

QRS = 40cm

Step-by-step explanation:

4x + 1 = 5x

x= 1 cm

QS = 4x + 1 + 5x

= 9x + 1

= 9 + 1

= 10cm

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QS + RQ + RS but ( RQ = RS)

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2 years ago

Round the answer to the nearest hundredth.

aniked [119]

Answer is 5.85 see picture

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