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Oksi-84 [34.3K]
3 years ago
9

Estimate the sum by rounding each number

Mathematics
2 answers:
sergeinik [125]3 years ago
7 0
The correct answer is A.
Rasek [7]3 years ago
4 0

Answer:

B is the answer to the question.

Step-by-step explanation:

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A book has 150 pages, every page is numbered. how many digits are used?
IrinaK [193]
300 digits/numbers are used.

150pages * 2(two sides to one page) = 300numbers

Hope this helps!!!
7 0
3 years ago
A company tests the life of its rechargeable batteries over six months of use. They test how long a battery will last after a fu
jonny [76]

Answer:

18.6 months

Step-by-step explanation:

Given that :

Best fit line from scatterplot :

y=-12.05x +224.26

x = Number of month

y = charge on battery

Number of months a typical battery uses before being dead completely :

When battery is dead completely ; charge =0, y = 0

y = -12.05x + 224.26

0 = - 12.05x + 224.26

12.05x = 224.26

x = 224.26 / 12.05

x = 18.610788

Hence, 18.6 months before battery is completely dead.

4 0
3 years ago
You pick a card at random. Without putting the first card back, you
Inga [223]

First, we need the probability of picking an odd number.

There are 5 cards in total, and 3 odd cards (3, 5, and 7).

That means that the probability that we'll draw an odd card would be \frac{3}{5}.

Then, we have 4 cards left, and 2 even cards (4 and 6), meaning that the probability that we draw an even card will be \frac{2}{4} or \frac{1}{2}.

To find the probability that these would happen in consecutive draws, we just multiply the probabilities together.

\frac{3}{5}*\frac{1}{2}=\frac{3}{10} or 0.3.

To convert this into a percentage, we multiply the decimal by 100.

0.3*100=30.

So the probability of picking an odd number and then picking an even number is 30%.

Hope this helps!

8 0
3 years ago
3x + 7 = x -5Group of answer choices x = -6 x = -7 x = 12 x = 6
LUCKY_DIMON [66]
The answer is x= -7 (can you please hit thanks)
4 0
3 years ago
Terry earns $6.50 per hour babysitting.
Ede4ka [16]
It's c because$6.50h = m h = 4.25
3 0
4 years ago
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