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shusha [124]
3 years ago
15

Marta exercises 30 minutes each day Greg exercises 40 minutes a each day how many more minutes does Greg exercise than Marta in

a month that has 31 days
Mathematics
2 answers:
Tpy6a [65]3 years ago
8 0

Answer:

310 minutes

Step-by-step explanation:

1. Find the minutes Marta exercises in a month that has 31 days if she exercises 30 minutes each day:

31days*\frac{30minutres}{1day}=930minutes

Martha exercises 930 minutes in a month.

2. Find the minutres Greg exercises in a month that has 31 days if he exercises 40 minutes each day:

31days*\frac{40minutes}{1day}=1240minutes

Greg exercises 1240 minutes in a month.

3. Calculate how many more minutes Greg does exercise than Marta:

1240 - 930 = 310 minutes

ryzh [129]3 years ago
6 0
40-30=10 minutes more per day x 31 days = 310minutes in a month with 31 days.
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Answer:

The answer is;

54.4

Step-by-step explanation:

The given parameter are;

Triangle ΔFGH = Right triangle

The length of segment \overline {FH} = 48

The measure of ∠HFG = 28°

The measurement required = The measure of segment \overline {FG} = x

The measure of ∠FHG = 90° angle opposite hypotenuse side of a right triangle

Therefore, ∠FGH = 180° - ∠HFG - ∠FHG = 180° - 90° - 28° = 62°

∠FGH = 62°

By sine rule, we have;

\overline {FH}/(sin ∠FGH) = \overline {FG}/(sin(∠FHG)

By substituting the known values, we have;

48/(sin 62°) = x/(sin(90°)

sin(90°) = 1, therefore, we have;

x/1 = x = 48/(sin 62°) = 54.4 (by rounding the answer to the nearest tenth)

x = 54.4

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2 years ago
On the Richter scale, the magnitude, M, of an earthquake is given by M= 2/3logE/Eo, where E is the energy released by the earthq
Ivahew [28]

Answer:

See below

Step-by-step explanation:

Part A

<em><u>Formula</u></em>

M = 2/3 * log(E/Eo)

<em><u>Givens</u></em>

M = ??

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M = (2/3) * log(2 * 10^15 / 10^4.4)

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M = (2/3) * 11.901

M = 7.934

Part B

What the question is saying is that E/Eo = 10000

You don't have to figure out exact values.

M = 2/3 * log(10000)

M = 2/3 * 4

M = 8/3 or 2 2/3 or 2.66667

If you have choices, please list them.

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Answer:

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Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

P(Green) = 5 / 10

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P(Red) = 2 / 10

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The denominator will decrease because we arent replacing the marbles after we take one out of the bag

Second choice red: 2 / 9

So

5 / 10 x 2 / 9

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3 0
2 years ago
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