MATHEMATICS MIDDLE SCHOOL

You are miguel Cervantes de Navas y colon, captain in the royal spanish army in Sevilla in the year 1842. Outside your barracks window is a stack of cannonballs, as shown in the illusion. On an idle afternoon you dicide to calculate the number of cannonballs in the stack. What is the number of cannonballs? A. 650 B. 506 C. 623 D. 571

Answers

Answer 1

Answer:

Answer:

650

Step-by-step explanation:

1st row has 1 ball

2nd row has 4 balls

3rd row has 9 balls

4th row has 16 balls

We can see that the number of balls is the square of the row number. There are a total of 12 rows. So, rest of the rows has:

5th row has 25 balls

6th row has 36 balls

7th row has 49 balls

8th row has 64 balls

9th row has 81 balls

10th row has 100 balls

11th row has 121 balls

12th row has 144 balls

If we add up all those, we get total number of balls

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Combine like terms. 3(p+5)-8+11p and 7x+4(2x-6)
The height (h metres) and age (a years) of a tree are related by the following inequality: h < 4a – 3 for values of a between 1 and 10 Which pair of values satisfy this inequality? a. h = 2 and a = 1 b. h = 6 and a = 2 c. h = 10 and a = 3 d. h = 20 and a = 6
Please help! Its for my big test tomorrow!
Polygon ABCDEF is a regular hexagon. Find the perimeter of the polygon. Round to the nearest hundredth. Round to give final answer only.

629,999 rounded to the nearest hundred thousand

Answers

600,000 because 629,999 is closer to 600,000 than 700,000

Draw a number line to show that 2/3 and 4/6 are equivalent

Answers

1/8 1/6 1/5 1/4 1/3 1/2 2/3 3/4

You can figure this out looking at the decimals.

Use the decimals which you already have. That makes it easy:

0.125 < 0.166... < 0.200 < 0.250 < 0.333... < 0.500 < 0.666... < 0.750

Mario ordered a pizza for dinner when it arrived, mario quickly ate 1/8 of the pizza.while mario went to go get napkins, his pet poodle ate 1/3 of the pizza.a.about what percent of the pizza is left

Answers

Answer: 54.16% of pizza is left.

Step-by-step explanation:

Since we have given that

Part of pizza ate by Mario = $(1)/(8)$

Part of pizza ate by his pet = $(1)/(3)$

So, total part ate by them is given by

$(1)/(8)+(1)/(3)\n\n=(8+3)/(24)\n\n=(11)/(24)$

Part of pizza left is given by

$1-(11)/(24)\n\n=(24-11)/(24)\n\n=(13)/(24)$

Percentage of pizza left is given by

$(13)/(24)* 100\n\n=(1300)/(24)\n\n=54.16\%$

Hence, 54.16% of pizza is left.

1/8 of the pizza is about 12% and 1/3 is about 33%. So if 45% of the pizza was eaten by Mario and his dog, there is about 55% left.

(If 1/4 means 25% then 1/8 is half of that 12.5% exactly but I used 12% since we are estimating)

Describe algebraically the relationship between x1 and x2

Answers

x2 is double the amount of x1

Find the mean of 11,-7,-14,10,-5

Answers

The mean to your question is -1. What you do is: 1) add all numbers together. 2) divide the sum by the amount of numbers in the question which is 5. 3) you get -1 as your mean. Hope this helps!

Final answer:

The mean of the numbers 11,-7,-14,10,-5 is found by adding all the numbers together, and then dividing by the number of numbers. In this case, the mean is -1.

Explanation:

To find the mean of the numbers 11,-7,-14,10,-5, you'll want to add all of these numbers together then divide by the amount of numbers there are. This is because the mean is the average value of a set of numbers.

First, add up all your numbers: 11 + -7 + -14 + 10 + -5, which totals to -5. There are 5 numbers in the set, so to find the mean, you then divide -5 by 5, which equals -1. So, the mean of the set of numbers 11, -7, -14, 10, -5 is -1.

Learn more about Mean here:

brainly.com/question/35447441

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in a class 60% of the students are girls there are 18 girls in the class. how many students are in the class and how many boys are in the class? Show Work

Answers

There are 30 students and 12 boys

60%-------> 18
40℅------>?
100%------>?

to find the answers first divide 18 by 60=0.3, now we know the number for 1%
now workout the 40% by multiplying it by 40%
0.3×40= 12
so the number of boys is 12
to find the total add the no. boys and girls.
12+18=30 so the total number of pupils is 30.

hope it helps

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