3 years ago

Can someone help me with this?

Mathematics

1 answer:

aliina [53]3 years ago

7 0

Answer: 22

Step-by-step explanation: 44:2=22

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Estimate the sum. Round each number to the nearest whole number, then add. 9 1/2 + 7 1/8

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Answer:

12 1/8

Step-by-step explanation:

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deluxe coffee is to be mixed with regular coffee to make at least 50 pounds of a blended coffee. The mixture must contain at lea

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Assume that x and y are both differentiable functions of t and find the required values of dy/dt and dx/dt.

Sedbober [7]

Answer:

a. $\frac{dy}{dt} = -\frac{13}{8}$

b. $\frac{dx}{dt} = \frac{9}{2}$

Step-by-step explanation:

To solve this question, we apply implicit differentiation.

xy = 2

Applying the implicit differentiation:

$y\frac{dx}{dt} + x\frac{dy}{dt} = \frac{d}{dt}(2)$

$y\frac{dx}{dt} + x\frac{dy}{dt} = 0$

a. Find dy/dt, when x = 4, given that dx/dt = 13.

x = 4

$xy = 2$

$4y = 2$

$y = \frac{2}{4} = \frac{1}{2}$

Then

$y\frac{dx}{dt} + x\frac{dy}{dt} = 0$

$\frac{1}{2}(13) + 4\frac{dy}{dt} = 0$

$4\frac{dy}{dt} = -\frac{13}{2}$

$\frac{dy}{dt} = -\frac{13}{8}$

b. Find dx/dt, when x = 1, given that dy/dt = -9.

x = 1

$xy = 2$

$y = 2$

Then

$y\frac{dx}{dt} + x\frac{dy}{dt} = 0$

$2\frac{dx}{dt} - 9 = 0$

$2\frac{dx}{dt} = 9$

$\frac{dx}{dt} = \frac{9}{2}$

3 0

3 years ago

PLEASE HELP 29 POINTS

Lina20 [59]

Write both numbers as a product of prime numbers:

56=2³·7;
96=2³·2²·3.

Then GCF(56,96)=2³=8.

Now you can rewrite the sum 56+96 as following two factors:

56+96=8·7+8·12=8·(7+12)=8·19 (here the first factor os GCF and the secomd factor is the sum of two numbers 7 and 12 that do not have a common factor).

Answer: 56+96=8·19.

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Answer:

140% is 140/100 = 7/5 is fraction

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