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2 years ago

Gracie drove 280 miles in 2.5 hours. How long will it take her to drive 710 miles at that same speed?

Mathematics

1 answer:

Ivanshal [37]2 years ago

7 0

Answer:

Step-by-step explanation:

710 miles × (2.5 hours)/(280 miles) ≅ 6.3 hours

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Sedrtfyghujiklmnbvgcfdrt6yuiopl;kmnjbhgvfcdxswertyuioklkmjnhbgvfds

Rama09 [41]

Answer: hshebe rjwkshzbjskxicbxuxbxjdnxkskzbu

Step-by-step explanation:

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3 years ago

How to find all possible functions with the given derivative ? If

Gre4nikov [31]

Answer:

a) $y = -\frac{1}{7}\cdot \cos 7\cdot t + C$ , b) $y = -\frac{1}{7}\cdot \cos 7\cdot t + 7\cdot \sin \left(\frac{t}{7}\right) + C$ .

Step-by-step explanation:

a) The antiderivative of $y' = \sin 7\cdot t$ is:

$y = -\frac{1}{7}\cdot \cos 7\cdot t + C$

b) The antiderivative of $y' = \sin 7\cdot t + \cos \left(\frac{t}{7}\right)$ is:

$y = -\frac{1}{7}\cdot \cos 7\cdot t + 7\cdot \sin \left(\frac{t}{7}\right) + C$

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3 years ago

Bob has 60 coins consisting of quarters and dimes. The coins combined value is $13.35. How many quarters and how many dimes does

ddd [48]

60x0.25=15
60x0.10=6
51x0.25=12.75
13.35-12.75
D-6
Q-51

4 0

3 years ago

Please hep I am struggling and this dang hw is due by 9!

olganol [36]

Answer:

18x^3+8x^2

Ya know you don't have to post the same question three times

3 0

3 years ago

Which of the following equations is equivalent to 2log4x − log49 = 2?

Masja [62]

Answer:

The value of x for given log equation is 17. 5

Step-by-step explanation:

Given as :

The log function is

2 log 4 x - log 49 = 2

Or, 2 log 4 x - log (7 × 7) = 2

Or, 2 log 4 x - log 7² = 2

from Log property

$Loga^{b}$ = b Log a

So, 2 log 4 x - 2 log 7 = 2

Taking 2 from Left hand side of equation

Or, 2 × (log 4 x - log 7) = 2

Or, (log 4 x - log 7) = $\dfrac{2}{2}$

Or, (log 4 x - log 7) = 1

Again from Log property

Log m - Log n = Log $\dfrac{m}{n}$

So, (log 4 x - log 7) = 1

Or, Log $\dfrac{4 x}{7}$ = 1

Now, Taking anti Log , we get

So, $\dfrac{4 x}{7}$ = antilog 1

i.e $\dfrac{4 x}{7}$ = $10^{1}$

Or, 4 × x = 10 × 7

∴ x = $\dfrac{70}{4}$

Or, x = 17.5

So, The value of x = 17.5

Hence, The value of x for given log equation is 17. 5 Answer

7 1

3 years ago

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