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Trava [24]
3 years ago
8

How can you estimate 1506 divided by 2so that it is close to the actual answer

Mathematics
2 answers:
barxatty [35]3 years ago
5 0
So you would have to change 1506 to 1500.
So then you will be able to do 1500 divided by 2. 1500/2 = 750
likoan [24]3 years ago
4 0
If you round 1506 down to 1500, then you can divide that by 2. rounding it down will make it easier.
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A school bought pens, each costing $1, and pencils, each costing $0.5. The cost of the whole purchase was $220. How many pens an
Aleks [24]

Answer:

<u>The number of pens = 120 and the number of pencils = 200</u>

Step-by-step explanation:

Let the number of pens x, and the number of pencils is y

the cost of one pen $1, and the cost of one pencil $0.5

The cost of the whole purchase was $220

1 * x + 0.5 * y = 220

x + 0.5 y = 220 ⇒ eq.(1)

there were 80 more pencils than pens

y - x = 80 ⇒ eq.(2)

from eq.(2) x = y - 80

By substitution with x from the last equation at eq.(1)

∴ (y - 80) + 0.5 y = 220

1.5y = 220 + 80 = 300

y = 300/1.5 = 200

x = y - 80 = 200 - 80 = 120

<u>So, the number of pens = 120 and the number of pencils = 200</u>

7 0
3 years ago
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Lera25 [3.4K]

Answer:

Step-by-step explanation:

Increase means his temp is going up. Just add.

99.2° + 3.4°

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3 0
2 years ago
the sides of a triangle have lengths s,s+4,and 3s write an expression that represents the perimeter of the triangle
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Perimeter of a poligon= sum of all sides.
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An expression that represents the perimeter of this triangle is:  5s+4
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Can someone help me with one of these or both ?
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