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3 years ago

Solve for x. 4+3/5(15+2x)=25

Mathematics

1 answer:

erik [133]3 years ago

6 0

If you would like to solve 4 + 3/5 * (15 + 2x) = 25 for x, you can do this using the following steps:

4 + 3/5 * (15 + 2x) = 25
3/5 * (15 + 2x) = 25 - 4
9 + 6/5 * x = 21
6/5 * x = 21 - 9
6/5 * x = 12 /*5/6
x = 12 * 5/6
x = 10

The correct result would be x = 10.

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26<br> Convert to a mixed number.<br> 3

GalinKa [24]

Answer:

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Step-by-step explanation:

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3 years ago

The half-life of the radioactive element unobtanium-43 is 10 seconds. If 48 grams of unobtanium-43 are initially present, how ma

natka813 [3]

Answer:

At time, 10 seconds, the mass remaining is 24 grams

At time, 20 seconds, the mass remaining is 12 grams

At time, 30 seconds, the mass remaining is 6 grams

At time, 40 seconds, the mass remaining is 3 grams

At time, 50 seconds, the mass remaining is 1.5 grams

Step-by-step explanation:

Given;

initial mass of the radioactive element = 48 grams

half life, t = 10 seconds

time of decay (s) remaining mass of the radioactive element

0 ------------------------------------------------- 48 grams

10------------------------------------------------- 24 grams

20 ------------------------------------------------- 12 grams

30 -------------------------------------------------- 6 grams

40 --------------------------------------------------- 3 grams

50 ----------------------------------------------------- 1.5 grams

60------------------------------------------------------0.75 grams

Thus;

At time, 10 seconds, the mass remaining is 24 grams

At time, 20 seconds, the mass remaining is 12 grams

At time, 30 seconds, the mass remaining is 6 grams

At time, 40 seconds, the mass remaining is 3 grams

At time, 50 seconds, the mass remaining is 1.5 grams

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3 years ago

A map of a city uses a scale of 1cm =3.5 meters. If a road shown on the maps runs for 25cm how long is the road?

choli [55]

Answer: 87.5

Step-by-step explanation: 1cm x 25cm = 87.5

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3 years ago

Read 2 more answers

Solve for y math problem

o-na [289]

Answer:

The answer is 4/5

Step-by-step explanation:

-1/2 y ≤ -2/5

1/2y ≤ 2/5

y ≤ 2 × 2/5

y ≤ 4/5

Thus, The value of y is 4/5

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2 years ago

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Answer:

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Step-by-step explanation:

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3 years ago