3 years ago

What is the better estimate for the mass of a textbook, 1 gram or 1 kilogram

Mathematics

2 answers:

frez [133]3 years ago

8 0

I kilogram, 1 gram would be a speck of dust

Tems11 [23]3 years ago

3 0

1 kilogram,because one gram would be about a piece of paper.

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What is the measurement of <3 and <1.

Hitman42 [59]

You can revise: the sum of the two adjacent angles is 180°
and the sum of the measurements of the three corners in a triangle is also 180°
<1= 180°-57°=123°
As <2=52°, so we have <3= 180°-(28°+71°+52°)= 180°-151°=29°
have fun

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3 years ago

−(7 − 2x) + 7 = −7 solve for x

jekas [21]

First, remove the parentheses

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Subtract 7

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Divide both sides by 2

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3 years ago

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4 years ago

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Liula [17]

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3 years ago

An experienced cashier at a grocery store takes 2 seconds to scan each item and 40 seconds to process the customer's payment. 1)

grigory [225]

Answer:

The correct option is D) 43 items.

Step-by-step explanation:

As we know that total given time is ,

$Y = (60\times2) +6 =126\hspace{0.15cm} sec$ ,

Out of which cashier spends 40 seconds to process the customer's payment.

So the remaining time = (126 - 40) = 86 secs.

And the remaining time is used to scan the item and so that we can calculate here the no items scan is = (86 ÷ 2) = 43.

Therefore we can say that 43 items are being purchased.

6 0

3 years ago