3 years ago

How much more is 3/4 cups of flour than 2/5 cups

Mathematics

2 answers:

inysia [295]3 years ago

8 0

The answer is .35, or 7/20.
Hope it helps!
I would really appreciate it if you gave me brainliest! Thanks! =D

kvv77 [185]3 years ago

5 0

35/100 or 7/20..............

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I need help with this question.

Citrus2011 [14]

Answer:

Step-by-step explanation:

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3 years ago

For the differential equation dy/dt=ky, k is a constant, y(0)=24, and y(1)=18. What is the value of k?

Gre4nikov [31]

The equation is separable, so solving it is trivial:

$\dfrac{\mathrm dy}{\mathrm dt}=ky\implies\dfrac{\mathrm dy}y=k\,\mathrm dt$

Integrating both sides gives

$\ln|y|=kt+C\implies y=e^{kt+C}=Ce^{kt}$

Given $y(0)=24$ and $y(1)=18$ , we find

$24=C$

$18=Ce^k=24e^k\implies e^k=\dfrac34\implies k=ln\dfrac34$

so the answer is E.

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4 years ago

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What is the answer 27x^3-1=0

chubhunter [2.5K]

X=cubic root 2/27
Glad to help

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4 years ago

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A carpenter purchased 70ft of redwood and 70ft of pine for a total cost of $282. A second purchase, at the same prices, included

dedylja [7]

I think the answer is $2.01 per 1ft of redwood and pine

282/2
=141

$141/70ft ÷ 70/70
=$20.1 per 1ft

7 0

3 years ago

What is the least common denominator of 7/10 and 4/9

melisa1 [442]

Answer:

7/10 = 63/90

4/9 = 40/90

Step-by-step explanation:

Rewriting input as fractions if necessary:

7/10, 4/9

For the denominators (10, 9) the least common multiple (LCM) is 90.

LCM(10, 9)

Therefore, the least common denominator (LCD) is 90.

Calculations to rewrite the original inputs as equivalent fractions with the LCD:

7/10 = 7/10 × 9/9 = 63/90

4/9 = 4/9 × 10/10 = 40/90

6 0

3 years ago