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elena55 [62]
3 years ago
5

essa had $35. she bought a book for $7 and a magazine for $5. which expression correctly shows the total money tessa has left? a

$35 − (−$7) (−$5) b $35 (−$7) − (−$5) c $35 (−$7) (−$5) d $35 − (−$7) − (−$5) a b c d
Biology
1 answer:
Semmy [17]3 years ago
3 0
<span>In both cases money is being taken away from her total amount. A negative negative is a positive, so you don't want any expression with a negative negative. This eliminates A, B, and D, leaving only C. In this expression, both times money is being taken away, making it correct.</span>
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Approximately how far apart were north america and europe 200,000 years ago
Ne4ueva [31]

The correct answer is - 1,180 km.

North America and Europe move away from one another, though on the other end of the plates, the Eurasian and the North American plates are actually merging. Since the rate of moving away is 2 cm per year, and the current distance is 1,184 km between North America and Europe, the distance between them 200,000 years ago was 1,180 km.

To get to the result we only need to multiply the number of years with the annual movement

2 x 200,000 = 400,000

Then divide the result with 100,000, as that is how much cm are in one km

400,000 / 100,000 = 4

And we get 4 km, in this case 4 km less, thus the distance between the two, 200,000 years ago, was 1,180 km.

4 0
3 years ago
Two pink flowering plants are crossed the offspring percentages are 25% red 25% white and 50% pink. What pattern of inheritance
Fed [463]
Answer: \underline{Incomplete Dominance}


Pink Flower ↔ Pink Flower 
.............RW x RW................
..........RR..RW..WR...WW....

RR → 25%
RW → 50%
WW → 25%

<span>The annex is followed for better understanding

</span>

4 0
3 years ago
Which can support more weight paper or plastic grocery bags?
wariber [46]

The plastic bags held more weight compared to the paper bags. The breaking points for the plastic bags are the handles. The weak points for the paper bags are the bottom and sides of the bag. The plastic bags held more weight and could conform to different shapes and stretching characteristics.

5 0
3 years ago
A classmate states that animals that result from artificial selections are lucky since they have better traits than bred animals
Delvig [45]

Answer:

See answer below. Hope it helps.

Explanation:

This can have advantages and disadvantages. The artificially selected animals could have better traits than naturally selected animals, but in the long run, it will be harder for them to evolve and adapt to new environments because of the lack of variation in their traits.

3 0
2 years ago
Explain why it is an advantage for plants to store carbohydrates as starch rather than as sugars​
Darina [25.2K]

Answer:

More energy are packed into less space by starch molecules far more than glucose or sucrose yet they are able to release this energy easily, hence maximizing both storage and mobilization.

Explanation:

When plants have a period of dormancy to survive, they store their food as starch. They store enough of this energy so as to be able to restart with and to be able to maintain metabolism for the entire period of dormancy.

In addition, we know that starch is not water soluble, hence, lacks the ability to pull water into storage cells or cause irregularity in water balance. More energy are packed into less space by starch molecules far more than glucose or sucrose yet they are able to release this energy easily, hence maximizing both storage and mobilization.

Glucose is not directly transported by plants to storage. Rather, in a plant stem, the form of carbohydrate being transported is sucrose and this is because it is a non-reducing and does not react with oxygen during transport in the stem to specialized storage plastids.

4 0
2 years ago
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