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3 years ago

15

Select two ratios that are equivalent to 2 : 9.

1 answer:

stira [4]3 years ago

3 0

Answer:

4:18 6:27 plenty more but you said to so

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A dripping faucet wastes a cup of water if it drips for four minutes

Virty [35]

Huh.
What is the question?

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4 years ago

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The current population of Smyrna, Maine, is 380 and grows at a rate of 3% per year. Which equation could be used to determine ho

Lena [83]

The number of people after n years is calculated through the equation,
An = (Ao)(1 + r)^n
where An is the population after n years, Ao is the initial population and r is the rate. Substituting the known values,
420 = (380)(1 + 0.03)^n
The answer is letter A.

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3 years ago

I need to solve for x. I'm so confused with the whole 'Slide splitting theorem' thing

Murljashka [212]

Triangles JFE and JLK are similar provided that line segments FE and LK are parallel. This means that corresponding parts of these triangles occur proportionally to one another. In particular,

$\dfrac{JF}{JL}=\dfrac{JE}{JK}=\dfrac{FE}{LK}$

From this relation we get

$\dfrac{JF}{JL}=\dfrac{JE}{JK}\implies\dfrac{(3x+21)-12}{12}=\dfrac{56}{70}$

Now we can solve for $x$ :

$\dfrac{3x+9}{12}=\dfrac45$

$3x+9=12\cdot\dfrac45=\dfrac{48}5$

$3x=\dfrac{48}5-9=\dfrac35$

$x=\dfrac{\frac35}3=\dfrac15$

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4 years ago

The linear equation passing through the point (2,-5) has a slope of 2 is

Vilka [71]

Answer:

hi

Step-by-step explanation:

i am hero

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3 years ago

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At 2:00 PM a car's speedometer reads 30 mi/h. At 2:20 PM it reads 50 mi/h. Show that at some time between 2:00 and 2:20 the acce

storchak [24]

Answer:

The correct answer will be "60 min/hour".

Step-by-step explanation:

At time 2:00 PM

A car reads = 30 mi/h

At time 2:20 PM

A car reads = 50 mi/h

Now,

At time 2:00 PM

t = 0

At time 2:20 PM

t = $\frac{1}{3}$

$v(0)=30$

$v(\frac{1}{3})=50$

For MVT,

$v'(c)=\frac{v(\frac{1}{3} -v(0))}{(\frac{1}{3} )}$

$=\frac{20}{\frac{1}{3} }$

$=60 \ min/hour$

5 0

3 years ago