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3 years ago

Explain how to find the unit rate of water to vinegar

Mathematics

1 answer:

kvv77 [185]3 years ago

3 0

Answer:

Helena uses double the amount of water to the amount of vinegar.

Step-by-step explanation:

A unit rate is a ratio that is used to compare different kinds of quantities.

A unit rate describes how many units of the first quantity corresponds to one unit of the second quantity.

So, unit rate of water to vinegar means how much water is needed corresponding to 1 unit of vinegar.
Formula:

$\text{Unit Rtae} = \displaystyle\frac{\text{Amount of Water}}{\text{Amount of Vinegar}} = \displaystyle\frac{5}{2\frac{1}{2}} = 2$

Thus, for every 1 unit of vinegar, one needs two units of water.

Thus, Helena uses double the amount of water to the amount of vinegar.

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ANSWERED

kvv77 [185]

Answer:

c but you have it so thanks

Step-by-step explanation:

6 0

3 years ago

A population of a particular yeast cell develops with a constant relative growth rate of 0.4225 per hour. The initial population

Ksju [112]

Answer: The population after 3 hours is 13.9 mill.

Step-by-step explanation:

When we have an exponential with:

A = initial population.

r = constant relative growth rate:

t = time.

The function that models this is:

P(t) = A*e^(k*t)

In this case we know that:

A = 3.9 mill.

r = 0.4225 1.

Then the function that models the population of this yeast cell is:

P(t) = (3.9 mill)*e^(0.4225*t)

where t represents the time in hours.

Then if we want to know the population after 3 hours, we should replace t by 3.

P(3) = (3.9 mill)*e^(0.4225*3) = 13.85 mill.

And we want to round our answer to one decimal place, then we must look at the second decimal place, we can see that is a 5, so we should round up.

The population after 3 hours is 13.9 mill.

8 0

4 years ago

5x (-2w-4) I need this asap

ira [324]

Hello from MrBillDoesMath!

Answer:

-10w - 20

Discussion:

5 ( -2w - 4 ) =

5(-2w) - 5(4) =

-10w - 20

Thank you,

MrB

4 0

3 years ago

Help please!! I'm having trouble with this question

Fiesta28 [93]

Answer:

the least value would be 85

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Please help me find the total area of the composite figure below (geometry)

Akimi4 [234]

Answer:

lw + $\frac{1}{2}$ × π × $(\frac{l}{2} )^{2}$ ⇒ Answer D is correct

Step-by-step explanation:

First, let us find the area of the semi-circle.

Area = $\frac{1}{2}$ × π × r²

Given that,

diameter of the semi-circle is ⇒ l

∴ radius ⇒ l / 2

Let us find it now.

Area = $\frac{1}{2}$ × π × r²

Area = $\frac{1}{2}$ × π × $(\frac{l}{2} )^{2}$

Secondly, let us find the area of the rectangle.

Area = length × width

Given that,

length ⇒ l

width ⇒ w

Let us find it now.

Area = length × width

Area = l ×w

Area = lw

And now let us find the total area.

Total area = Area of the rectangle + Area of the semi - circle

Tota area = lw + $\frac{1}{2}$ × π × $(\frac{l}{2} )^{2}$

8 0

2 years ago