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4 years ago

Round to the nearest hundred and solve a problem. 372,864+214,209=

Mathematics

1 answer:

Taya2010 [7]4 years ago

8 0

Answer:587,073

Step-by-step explanation:

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john and george raked 7/8 of the yard john raked 3/4 of the amount what part of the yard did george rake

nikdorinn [45]

This is a subtraction problem so subtract 3/4 from 7/8 (7/8 - 3/4). First you have to make them both have the least common denominator. That is 8. So multiply both the numerator and denominator or 3/4 by 2. 3 x 2= 6 and 4 x 2= 8. New fraction is 6/8. Now solve problem again with new fraction. 7/8 - 6/8= 1/8. Your answer is 1/8

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3 years ago

What is the value of x

zaharov [31]

We use the Pythagorean theorem here, because we have the two sides and a right angle between them, so we calculate the hypotenuse like this:

x^2 = 6^2 + 8^2

x^2 = 36 + 64

x^2 = 100

x = square root of 100

x = 10

The correct answer is B.10.

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4 years ago

The sum of two whole numbers is 84, and their positive difference is 18.What are the two numbers? Please help

Vlad1618 [11]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

Help please i dont get it

Mandarinka [93]

Answer:

3.51

Step-by-step explanation:

yes

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3 years ago

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After heating up in a teapot, a cup of hot water is poured at a temperature of

xxTIMURxx [149]

Answer:

k ≈ 0.060
T(4) ≈ 178 °F

Step-by-step explanation:

The desired formula parameters for Newton's Law of Cooling can be found from the given data. Then the completed formula can be used to find the temperature at the specified time.

<h3>Given:</h3>

$T(t)=T_a+(T_0-T_a)e^{-kt}\\\\T_a=68,\ T_0=208,\ (t,T)=(3,185)$

T(4)

<h3>Solution:</h3>

Filling in the given numbers, we have ...

185 = 68 +(208 -68)e^(-k·3)

117/140 = e^(-3k) . . . . . subtract 68, divide by 140

ln(117/140) = -3k . . . . . . take natural logarithms

k = ln(117/140)/-3 ≈ 0.060

The temperature after 4 minutes is about ...

T(4) = 68 +140e^(-0.060·4) ≈ 68 +140·0.787186

T(4) ≈ 178.205

After 4 minutes, the final temperature is about 178 °F.

3 0

3 years ago