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kkurt [141]
3 years ago
15

123g is rounded to nearest Whole. Write down the maximum possible mass it could have been.

Mathematics
1 answer:
siniylev [52]3 years ago
6 0

It is rounded to 100 grams

122.5g ≤ mass < 123.5g For calculation purposes a maximum value of 123.5 grams can be used.

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If f(x) = -4x - 6, then f (0.3) = ____.
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Answer:

-7.2

Step-by-step explanation:

-4(0.3)-6

-1.2-6

-7.2

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3 years ago
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J= 6 for 15 - j= 21<br> What’s the answer
Ann [662]

Answer:

15+6=21

15-(-6) = 21

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A and B working together can do a work in 6 days. If A takes 5 days less than B to finish the work, in how many days B alone can
svetlana [45]

Answer:

15 days

Step-by-step explanation:

Let x be the number of days needed for B to complete the job. Then x-5 is the number of days needed for A to complete the job.

In 1 day,

  • A completes \dfrac{1}{x-5} of all work;
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Hence, in 1 day both A and B complete \dfrac{1}{x-5}+\dfrac{1}{x} of all work. A and B working together can do a work in 6 days. Then

6\cdot \left(\dfrac{1}{x-5}+\dfrac{1}{x}\right)=1.

Solve this equation:

\dfrac{6x+6x-30}{x(x-5)}=1,\\ \\12x-30=x^2-5x,\\ \\x^2-17x+30=0,\\ \\D=(-17)^2-4\cdot 30=289-120=169=13^2,\\ \\x_{1,2}=\dfrac{17\pm 13}{2}=2,\ 15.

If x=2, then x-5=-3 that is impossible. So, B needs 15 days to complete the work alone.

6 0
3 years ago
Imagine you live in a big country. There are no forests in your country, but there are lots of farms and lots of food. The count
Fed [463]

Trading your food for the neighboring country's wood. You can control how much wood they cut down, slowing down the change of climate in your country, and can help them with their food shortage at the same time.

5 0
2 years ago
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How many table spoons of vanilla will she use? Plss provide how you got the answer
Ksivusya [100]
Hi!
In one batch she uses 3/4 teaspoon of vanilla
therefore in 5 batch she uses 5*3/4=15/4 teaspoons of vanilla.
as it is given that 3 teaspoons=1 tablespoon
the amount of vanilla used for 5 batches =(15/4)/3=(15/4)*1/3=5/4==1.25 tablespoons.

All the best.
4 0
3 years ago
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