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White raven [17]
3 years ago
5

Share 56 in the ratio 5:3

Mathematics
2 answers:
Nookie1986 [14]3 years ago
7 0

Answer:

is this a question?

Step-by-step explanation:

123838382

Inessa [10]3 years ago
5 0

Answer:

Step-by-step explanation:

5 : 3 x 7 = 35:21

(8) x 7 = (56)

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riadik2000 [5.3K]

Just gonna give you the answer:

The constant variation is 1/2


3 0
3 years ago
You have 480 grams of a radioactive kind of samarium. If its half-life is 90 years,
lisov135 [29]

Answer:

120 grams will be left after 180 years.

Step-by-step explanation:

A radioactive half-life refers to the amount of time it takes for half of the original isotope to decay and its given by

                                             N(t)=N_0(\frac{1}{2})^\frac{t}{t_{1/2}}

where,

N(t) = quantity of the substance remaining

N_0 = initial quantity of the substance

t = time elapsed

t_{1/2} = half life of the substance

From the information given we know that:

  • The initial quantity is 480 g,
  • The half-life is 90 years,
  • 180 years is the time elapsed.

And we want to find how much will be left. For this we use the above formula.

N(t)=480\left(\frac{1}{2}\right)^{\frac{180}{90}}\\\\N(t)=480\left(\frac{1}{2}\right)^2\\\\N(t)=480\cdot \frac{1}{2^2}=120

120 grams will be left after 180 years.

3 0
3 years ago
Find the distance between -508 and 123.​
Luda [366]

Answer:

add the absolute value for both, boom ur answer

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
According to the scale on a map, 1 inch on the map = 15 miles. How many miles are represented by 2.5 inches on the map?
Artyom0805 [142]
2.5 times 15 equals 37.5 miles
7 0
3 years ago
F(x)=9x-6<br> what is f(1)
Leto [7]
Hello,

Shall we begin?

<span>F(x)=9x-6
</span>
F(1) = 9 * 1 - 6
F(1) = 9 - 6
F(1) = 3

Answers: 3
8 0
3 years ago
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