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3 years ago

-x+ 3 = — 3х + 23 What is it?

2 answers:

6 0

1.regroup terms: 3-x=-3x+23
2. subtract 3 from both sides: -x=-3x+23-3
3. simplify -3x+23-3 to -3x+20: -x=-3+20
4. add 3x to both sides: -x+3x=20
5. simplify 3x=20 to 2x: 2x=20
6. divide both sides by 2: x=20/2
7. simplify: x=10
ANSWER: x=10

nekit [7.7K]3 years ago

4 0

Answer:

x=10

Step-by-step explanation:

$-x+ 3 = - 3x + 23\\2x+3=23 \\2x=20\\x=10$

1. Subtract -3x from both sides of equation

2. Subtract 3 from both sides of equation

3. Divide both sides by 2

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Explain why 4 x 3/5 = 12 x 1/5. Draw a picture

gtnhenbr [62]

$(4)*(3/5)=(12)*(1/5)$

Step-by-step explanation:

Step 1:

Let us consider the given expression $(4)*(3/5)=(12)*(1/5)$

On Right Hand Side of equation,

$4*(3/5)$

Using BODMAS rule, we could get 2.4 as value.

Step 2:

Now let us consider the Left Hand Side of equation and solve it

$12* (1/5)$ which will be equal to 2.4.

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3 years ago

You are part of a construction company that is supposed to build houses. An architect has left plans to build houses on each isl

Marrrta [24]

Answer:

<h2>Island A, B and C has 10, 5 and 7 houses respectively.</h2>

Step-by-step explanation:

Let, the three islands A, B and C has a, b and c houses respectively.

According to the question, a + b = 15; a + c = 17; b + c = 12; a + b + c = 22.

Adding [ a + b = 15; a + c = 17]-these two, we get, $a + (a + b + c) = 15 + 17 = 32\\a + 22 = 32\\a = 10$ .

Now, $a + b = 15\\10 + b = 15\\b = 5$ .

$a + c = 17\\10 + c = 17\\c = 7$ .

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4 years ago

The following problem describes procedures that are to be applied to numbers. Repeat the procedure for four numbers of your choi

mart [117]

Answer:

Conjecture: For every number x, the result of the is 2x

Step-by-step explanation:

First Number: 8

Multiply by 88: $88 * 8 = 704$

Add 88: $704 + 88 = 792$

Divide by 44: $792/44 = 18$

Subtract 2: $18 - 2 = 16$

Second: 10

Multiply by 88: $88 * 10 = 880$

Add 88: $880+88=968$

Divide by 44: $968/44=22$

Subtract 2: $22-2=20$

Third: 5

Multiply by 88: $88*5 = 440$

Add 88: $440+88=528$

Divide by 44: $528/44=12$

Subtract 2: $12-2=10$

Fourth: 2

Multiply by 88: $88*2=176$

Add 88: $176+88=264$

Divide by 44: $264/44=6$

Subtract 2: $6-2=4$

On a general terms:

Let the number be x.

Multiply by 88: $88x$

Add 88: $88x + 88$

Divide by 44: $\frac{88x + 88}{44} = \frac{88x}{44} + \frac{88}{44} = 2x+2$

Subtract 2: $2x + 2 - 2 = 2x$

Notice that for every input x, the result is 2x

8 0

3 years ago

Shawna is making smoothies. The recipe calls for two parts yogurt to three parts blueberry. Shawna wants to make 10 cups of smoo

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Answer:

Shawna needs a mix of 4 cups of yoghurt and 6 cups of blueberries

Step-by-step explanation:

Here, we want to know the number of cups of yoghurt and smoothies Shawna needs to make;

We have 2 parts yoghurt and 3 parts blueberry, so we can say we have a ratio of 2:3

The total number of cups to be made is 10

So the number of cups of yoghurt will be;

2/(2+3) * 10

= 2/5 * 10 = 4 cups

The number of cups of blueberry would be;

3/5 * 10 = 6 cups

So a mix of 4 cups of yoghurt and 6 cups of blueberries is needed by Shawna

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4 years ago

(F-32). Convert 12°C to

Kaylis [27]

Answer:

Step-by-step explanation:

multiply by 1.8 and add 32

12*1.8=21.6

21.6+32=53.6

53.6 rounded = 54

7 0

4 years ago

-x+ 3 = — 3х + 23 What is it?​

-x+ 3 = — 3х + 23 What is it?