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KatRina [158]
3 years ago
15

How the value of a decimal changes as you move to the left or the right in a place-value chart

Mathematics
2 answers:
ddd [48]3 years ago
8 0
When you move the decimal point to the right the number increases if you move it to the left it will decrease
Over [174]3 years ago
6 0
When moving the decimal point to the left, the value of the number decreases.  When moving the decimal point to the right, the value of the number increases.
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What is the Value of x in the equation 2.5x + 10 = x-0.5 ?
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Answer: 7

Step-by-step explanation:

2.5x+10=x-0.5\\2.5x-x+10=-0.5\\1.5x=-0.5-10\\1.5x=-10.5\\x=\frac{10.5}{1.5}\\ x=7

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What does a plant cell have that an animal cell does not have? (select all that apply.) please answer me
Ludmilka [50]

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2 years ago
You manage an ice cream factory that makes two flavors: Creamy Vanilla and Continental Mocha. Into each quart of Creamy Vanilla
Mars2501 [29]

Answer:

You should make 250 quarts of Creamy Vanilla and 200 of Continental Mocha to use up all the eggs and cream.

Step-by-step explanation:

This problem can be solved by a first order equation

I am going to call x the number of quarts of Creamy Vanilla and y the number of quarts of Continental Mocha.

The problem states that each quart of Creamy Vanilla uses 2 eggs and each quart of Continental Mocha uses 1 egg. There are 700 eggs in stock, so:

2x + y = 700.

The problem also states that each quart of Creamy Vanilla uses 3 cups of cream and that each quart of Continental Mocha uses 3 cups of cream. There are 1350 cups of cream in stock, so:

3x + 3y = 1350

Now we have to solve the following system of equations

1) 2x + y = 700

2) 3x + 3y = 1350

I am going to write y as function of x in 1) and replace it in 2)

y = 700 - 2x

3x + 3(700 - 2x) = 1350

3x + 2100 - 6x = 1350

-3x = -750 *(-1)

3x = 750

x = 250

You should make 250 quarts of Creamy Vanilla

Now, replace it in 1)

y = 700 - 2x

y = 700 - 2(250)

y = 700 - 500

y = 200.

You should make 200 quarts of Continental Mocha

7 0
3 years ago
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