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anastassius [24]
3 years ago
6

Distance between New York and San Francisco is 2,563.79 miles. A train travels at an average speed of 90 miles per hour. What eq

uation shows the relationship between distance traveled (d), speed (s), and time taken (t)?
Mathematics
1 answer:
TEA [102]3 years ago
4 0
 the equation is d= s(t)    in this problem it'll be 2,563.79= 90(t)  and t would equal 28.48(28.5 rounded to nearest tenth)

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Write a expression that is equivalent of 4+3(5+x)
Serggg [28]

Answer:19+3x

Step-by-step explanation:

4+3(5+x)

Open bracket

4+15+3x

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3 0
4 years ago
Pls help soon:)
Tanzania [10]
Correct answers are:
(1) <span>28, 141 known cases
(2) 79913.71 known cases after six weeks (round off according to the options given)
(3) After approx. 9 weeks (9.0142 in decimal)

Explanations:
(1) Put x = 0 in given equation
</span><span>y= 28, 141 (1.19)^x
</span><span>y= 28, 141 (1.19)^(0)
</span>y= 28, 141


(2) Put x = 6 in the given equation:
<span>y= 28, 141 (1.19)^x
</span><span>y= 28, 141 (1.19)^(6)
</span>y= 79913.71

(3) Since
y= 28, 141 (1.19)^x
And y = <span>135,000

</span>135,000 = 28, 141 (1.19)^x
135,000/28, 141 = (1.19)^x

taking "ln" on both sides:
ln(4.797) = ln(1.19)^x

ln(4.797) = xln(1.19)
x = 9.0142 (in weeks)

5 0
3 years ago
Quick please! Which best describes the triangle? 1.Acute and isosceles 2.Acute and scalene 3. Right isosceles 4.Obtuse and isosc
rjkz [21]

Answer:

hey there!!!

Step-by-step explanation:

i think the best option is acute and isosceles from my view

hope it helps you...

4 0
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7m
1.75 divided by 2.25 = 0.77777777...
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5 0
3 years ago
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dlinn [17]

Answer:

the answer to the problem is m=-2000

5 0
3 years ago
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