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3 years ago

87.039 as a mixed number

Mathematics

1 answer:

balandron [24]3 years ago

5 0

Answer:

87 39/1000

Step-by-step explanation:

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One-third of the candidates for a job were 25 years old or younger. Two-sevenths of the candidates were at least 50 years old. I

Elza [17]

Answer:

1/3 * 84 = 28 were under 25

2/7 * 84 = 24 were at least 50

28 + 24 = 52

84-52 = 32 were between 25 and 50

Step-by-step explanation:

3 0

3 years ago

Assume that x and y are both differentiable functions of t and find the required values of dy/dt and dx/dt. xy = 4 (a) Find dy/d

kompoz [17]

Answer:

a) -0.9375

b) 1.25

Step-by-step explanation:

We are given the following in the question:

$f(x,y) = 4$

where x and y are both differentiable functions of t.

a) x = 8 and dx/dt = 15

$\\xy = 4\\\\y = \dfrac{4}{x}\\\\y = \dfrac{4}{8}=\dfrac{1}{2}\\\\\dfrac{d(f(x,y))}{dt} = 0\\\\x\dfrac{dy}{dt} + y\dfrac{dx}{dt} = 0\\\\8\dfrac{dy}{dt} + \dfrac{1}{2}(15) = 0 \\\\\dfrac{dy}{dt} = \dfrac{1}{8}\times \dfrac{-15}{2}\\\\\dfrac{dy}{dt} = -\dfrac{15}{16}\\\\\dfrac{dy}{dt}=-0.9375$

b) x = 1 and dy/dt = –5

$xy = 4\\\\y = \dfrac{4}{x}\\\\ y= 4\\\\\dfrac{d(f(x,y))}{dt} = 0\\\\x\dfrac{dy}{dt} + y\dfrac{dx}{dt} = 0\\\\(1)(-5) + 4\dfrac{dx}{dt} = 0 \\\\\dfrac{dx}{dt} = \dfrac{5}{4}\\\\\dfrac{dx}{dt} = 1.25$

3 0

4 years ago

melissa calculated the that she can swin 3.6 miles per hour. avery calculated her swimming speed to be 2.8 miles per hour. how m

aniked [119]

0.8 miles per hour
Melissa swam 0.8 miles per hour faster than Avery because 3.6 minus 2.8 is 0.8.

Please make me brainliest.

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3 years ago

Reuploaded math pre algebra

podryga [215]

Divide 192 by 15 which would equal 12.8 ft. Since you have to round to the nearest whole number, your answer would be 13 ft.

Work:

192÷15=12.8
12.8 is then rounded to 13.

3 0

4 years ago

Read 2 more answers

The measure of angle tis 60 degrees.

Shkiper50 [21]

Answer:

Step-by-step explanation:

Not a clear list of options and/or reference frame

Probably 0.5 if angle t is measured from the positive x axis.

6 0

3 years ago