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tamaranim1 [39]
4 years ago
12

You went shopping for classroom supplies. You bought 255 blue pens, 100 red pens, and 189 green pens. How many pens did you buy

in all?
Mathematics
1 answer:
jeyben [28]4 years ago
7 0
I bought 544 pens in all
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The sum of two numbers is six, and the difference is 10. Find the numbers.
pashok25 [27]
First no. = x 
Second no. = y

Equation Formation
x + y = 6..........equation(i)
x - y = 10...........equation (ii)


x = 6 - y
6 - y - y = 10
6 - 2 y = 10
-2 y = 10 -6
-2 y = 4
   y = -2

x = 6 + 2
x = 8

Answer = 8 , -2 

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4 years ago
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When x = 12<br> , y = 47. What is the value of y when x = 312<br> ?
grandymaker [24]

Answer:

1222

Step-by-step explanation:

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3 years ago
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Answer the question below. The Smiths want to buy a 9 ft. by 12 ft. carpet and center it in a 15 ft. by 20 ft. room. What is the
schepotkina [342]
The perimeter of the carpet is determined by its dimensions so the dimensions of the room are irrelevant to the question.

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If the nth term of a number sequence is n’ – 3,<br> find the first 3 terms and the 10th term.
Diano4ka-milaya [45]

Answer:

First 3 terms: -2, -1, 0

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Step-by-step explanation:

n = 1,

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n = 2,

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n = 3,

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n = 10,

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