In Russel Elementary School there are 50 students. At the beginning of the year, each student planted three flowers in the school yard. During the year, eight flowers withered. Which of the following expressions represents the number of flowers that remained in the school yard? A. (3 × 50) – 8 B. (50 + 3) – 8 C. (50 × 8) – 3 D. (50 × 3) ÷ 8

Answers

Answer 1

Answer:

Answer:

option A is correct answer

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Hello, could you please help me with some ideas? This is the question:List at least five idioms that you have come across in your own life, and indicate both the idiomatic and literal meanings of each of the expressions.

Answers

Answer:

Your on thin ice.

The pen is mightier than the sword.

Its raining cats and dogs.

If your going through hell keep on going face that fire, walk right though it. don't slow do.

Step-by-step explanation:

Answer:

1. Time is money

Meaning: Work faster or more efficiently

2. Don’t judge a book by its cover

Meaning: Not judging something by its initial appearance

3.Getting a second wind

Meaning: Having energy again after being tired or worn out

4.Don’t judge a book by its cover

Meaning: Not judging something by its initial appearance

5.To be on cloud nine

Meaning: To be extremely happy

These are the ones I use.

There is a 0.23 probability that a typical convenience store customer buys gasoline. The probability that a customer buys groceries is 0.76 and the conditional probability of buying groceries given that the customer buys gasoline is 0.85.a) Find the probability that a typical customer buys both gasoline and groceries.

Answers

Answer:

The probability that a typical customer buys both gasoline and groceries, P(Ga n Gr) = 0.1955

Step-by-step explanation:

Let the probability that a customer guys groceries be represented by P(Gr) and that of buying gasoline be P(Ga)

Given

P(Gr) = 0.76

P(Ga) = 0.23

P(Gr|Ga) = 0.85

For mutually exclusive events,

P(B|A) = (P(B n A))/P(A)

P(Gr|Ga) = (P(Gr n Ga))/P(Ga)

P(Gr n Ga) = P(Gr|Ga) × P(Ga)

P(Gr n Ga) = 0.85 × 0.23 = 0.1955

Hope this Helps!!!!

An aluminum can is a right cylinder. Find the amount of paper needed for the can's label and the totalamount of aluminum needed to make the can. Round to the nearest tenth.
7 cm
12 cm
The amount of paper needed for the can's label is
1 cm?
The total amount of aluminum needed to make the can is
cm?
Please help put a bunch of points for this question do

Answers

Answer:

Label: About 527.9 square centimeters

Aluminum: About 835.7 square centimeters

Step-by-step explanation:

Amount of paper needed for the label:

You can imagine taking off the label and unrolling it, forming a rectangle. The height of this rectangle will be the height of the cylinder, while the length of the rectangle will be the circumference of the cylinder. Therefore, the area of that rectangle will be $2\pi r h= 2 \cdot \pi \cdot 7 \cdot 12\approx 527.9$ .

Amount of aluminum needed for the can:

This time, you need to add in the top and bottom of the can as well, which each have area $\pi r^2$ . Together, they have area $2\pi r^2=2\cdot \pi \cdot 7^2\approx 307.9$ . Adding this to the area of the sides, you get a total of about 835.7 square centimeters.

Hope this helps!

Graph: y – 3=1/2(x+2)

Answers

Simplify and get y=1/2x+4
1/2x=slope. 4= y-intercept

How do you find the value of x or y so that the line through the points has a given slope?

Answers

We can make a linear equation system to deduce it.

$\left \{ {{y_1=ax_1+b~(I)} \atop {y_2=ax_2+b~(II)}} \right. \n \n (II)-(I): y_2-y_1=a(x_2-x_1) \n \n \boxed {a= (\Delta x)/(\Delta y) }$

ok so if you had the points
(x1,y1) and (x2,y2)
slope=rise/run so
slope=(y2-y1)/(x2-x1)

I cut 65 cm off 2 m of rope how much is left

Answers

2m = 200cm

200cm-65m= 135cm

:)

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A battery manufacturer makes batteries that have a failure rate of .015. That is, 15 out of each 1,000 batteries are defective. What is the probabilitythat a batch of 10,000 batteries will contain at least 175 defective batteries?