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3 years ago

What are 3 ways to get a substance to dissolve more quickly?

Mathematics

1 answer:

Nastasia [14]3 years ago

7 0

Answer:

Step-by-step explanation:

mixed with spoon

use blinder

shanke

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Solving Inequalities Unit Test. To see questions please go to PDF attachment below. You may not be able to access if you are on

Lostsunrise [7]

Alright, I'll explain them as well.
1. The answer is 7, The open end of the sign is always to the larger number.
2. The answer is 4, and again, the open end of the sign is always to the bigger number.
3. The answers is two, and as before, 2 is the only number that will not make it negative or 0 and make the larger number be to the open end of the sign.
4. I'm not entirely sure on this one, so I won't answer it because I don't want to be the reason you get it incorrect.
5. For this one, divide 180 by 2.25, this will give you 80. The inequality should be 2.25k ≥ 180, k <span>≥ 80.
I hope this helps, have a nice day :)</span>

5 0

4 years ago

If P' (3,6) is the image if P (2,-4) under translation T find the image of (7,2).

Zepler [3.9K]

So the rule is (x,y) ---> (x + 1, y + 10).

(x,y) ---> (x + 1, y + 10)
(7,2) ---> (7 + 1, 2 + 10)
(7,2) ---> (8, 12)

T' is located at (8,12)

5 0

4 years ago

A machine in a factory makes 20 gadgits every 1 hour. How many gidgets are made every hour ?

Svetlanka [38]

Answer:

as it is already told that a machine in a factory makes 20 gadgets are every 1 hour. so 20 gadgets are made every hour.

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

True or false: Over a continuous increasing interval on a reciprocal function, the original function is decreasing.

iragen [17]

Because the reciprical is the opposite, it is true. I hope this helps!

3 0

3 years ago

Read 2 more answers

Jessica and Martha each have a bag of cookies with unequal quantities. They have 30 cookies total between the two of them. Each

Basile [38]

Answer:

Part 1) The inequality that describes the relationship between the number of cookies each one of them has is $x^{2} -30x+224\geq 0$

Part 2) Jessica has at least 2 cookies more than Martha

Step-by-step explanation:

Part 1) Find the inequality that describes the relationship between the number of cookies each one of them has

Let

x----> the number of cookies when Jessica started

30-x ----> the number of cookies when Martha started

we know that

Each of them ate 6 cookies from their bag

The cookies left in each bag are

(x-6) ----> Jessica

and (30-x-6)=(24-x) ---> Martha

The product is equal to (x-6)(24-x)

The product of the number of cookies left in each bag is not more than 80.

$(x-6)(24-x)\leq 80\\ \\24x-x^{2}-144+6x\leq 80\\ \\-x^{2} +30x-144-80\leq 0\\ \\-x^{2} +30x-224\leq 0$

Multiply by -1 both sides

$x^{2} -30x+224\geq 0$

Part 2) Solve the quadratic equation

$x^{2} -30x+224\geq 0$

Solve by graphing

The solution is x=16 cookies

(30-x)=30-16=14 cookies

therefore

The number of cookies when Jessica started was 16 cookies

The number of cookies when Martha started was 14 cookies

The number of cookies left in each bag is equal to

Jessica

16-6=10 cookies

Martha

14-6=8 cookies

Jessica has at least 2 cookies more than Martha

7 0

3 years ago

Read 2 more answers