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Gelneren [198K]
3 years ago
5

Please help me in these pictures math.com

Mathematics
2 answers:
TiliK225 [7]3 years ago
3 0
I thank its A if not I’m sorry
kvasek [131]3 years ago
3 0

Answer:

60-40 is the answer

Step-by-step explanation:

how? you may ask,  58 estimated is positive so its easily 60 rounded up, and 41 is not close to positive so its rounding back to 40

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Find the number of rectangles in 8×8 chessboard. (not just the 1x1 squares)
Gekata [30.6K]

Answer:

288

Step-by-step explanation:

<em>                                             Number of rectangles</em>

<em>____________________________________________________________</em>

1 × 1 squares 9-1 = 1 = 8*8 = 64

1 × 2 squares 9-2 = 7 = 8*7 = 56

1 × 3 squares 9-3 = 6 = 8*6 = 48

1 × 4 squares 9-4 = 5 = 8*5 = 40

1 × 5 squares 9-5 = 4 = 8*4 =32

1 × 6 squares 9-6 = 3 = 8*3 = 24

1 × 7 squares 9-7 = 2 = 8*2 = 16

1 × 8 squares 9-8 = 1 = 8*1 = 8

64 + 56 + 48 + 40 + 32 + 24 + 16 + 8 = 288

<em>Thus,</em>

<em>the number of squares on a chessboard is 228.</em>

<em />

<em>Hope this helps :)</em>

8 0
3 years ago
The sum of two numbers is equal to 70. Which of the following functions can be use to find the product of the two numbers if one
Temka [501]
Let x=number 1 let y=number2
there sum is equal to 70
then

number1+number2=70

substituting

x+y=70

y=70-x
let there product will be p
p=xy
substituting
p=x(70-x)
which is choice c

4 0
3 years ago
What are factorials? And how do you do them in fractions like
Ket [755]
I think that it is 54
4 0
3 years ago
Juan purchased 6 soccer jerseys for $105.<br> How much would 12 soccer jerseys cost?
ehidna [41]
For twelve jerseys it would be $210
5 0
3 years ago
A farmer sells 8.5 kilograms of apples and pears at the farmer's market. 4 5 of this weight is apples, and the rest is pears. Ho
slavikrds [6]

Answer:

your answer gonna be $13 dollars

6 0
2 years ago
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