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3 years ago

30 POINTS! PLATO HELP! NUTRITION CLASS!

Mathematics

2 answers:

Paha777 [63]3 years ago

6 0

Answer:

30 points where ???

Step-by-step explanation:

nikdorinn [45]3 years ago

3 0

Answer:

The answer is The Egyptians invented storage silos, which they used to store grains for many years.

Step-by-step explanation:

Hope this helps!! :)

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How many ounces of a 17 % alcohol solution must be mixed with 4 ounces of a 20 % alcohol solution to make a 19 % alcohol sol

andre [41]

Answer:

4 ounces

Step-by-step explanation:

Let the required amount is x.

Alcohol content is same at the end:

x*0.17 + 4*0.2 = (x + 4)*0.19
0.17x + 0.8 = 0.19x + 0.72
0.19x - 0.17x = 0.8 - 0.72
0.02x = 0.08
x = 0.08/0.02
x = 4

5 0

3 years ago

Help please? solve for Y a(y+c)=b(y-c) solve for W A=lw+wh+lh ...?

Sunny_sXe [5.5K]

I am pretty sure that the solution I attach below is the correct one : $ay+ac=by-bc

ay-by=-ac-bc

y(a-b)=c(a-b)$
$y=c(a-b)/(a-b)

y=c$
And what about the next part of your task, the answer is :
$A=lw+wh+lh

w=(A-Ih)/(l+h)$
Do hope you will find it useful!

8 0

3 years ago

12 eggs cost $2.04. How much would 18 cost ?

Salsk061 [2.6K]

The answer to this sum is
$8.04

4 0

3 years ago

Read 2 more answers

1/4k = 3 (-1/4k + 3)

Arada [10]

Answer:

For the expression $\frac{1}{4} k = 3 (-\frac{1}{4}k +3)$

k = 9 is the required solution.

Step-by-step explanation:

Here, the given expression is $\frac{1}{4} k = 3 (-\frac{1}{4}k +3)$

Solving the above expression for k, we get:

$\frac{1}{4} k = 3 (-\frac{1}{4}k +3) \implies \frac{k}{4} = (\frac{-3}{4}k) + 9$

or, $\frac{k}{4} + (\frac{3}{4}k) = 9 \implies \frac{k + 3k}{4} = 9$

or, $\frac{4k}{4} = 9 \implies k =9$

or, k = 9

Hence for the expression $\frac{1}{4} k = 3 (-\frac{1}{4}k +3)$

k = 9 is the required solution.

8 0

3 years ago

What is the slope of the line that contains these points?

bazaltina [42]

Answer:

The answer to your question is 2

Step-by-step explanation:

Process

To solve this problem, just choose two sets of points and use the slope formula to find it.

Formula

slope = (y2 - y1) /(x2 - x1)

- I chose the first two points

Point 1 (5, -3)

Point 2 (6, -1)

x1 = 5 y1 = -3 x2 = 6 y2 = -1

-Substitution

slope = (-1 + 3) / (6 - 5)

-Simplification

slope = 2 / 1

-Result

slope = 2

6 0

4 years ago