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2 years ago

What is the equation 12= x+ 3

Mathematics

1 answer:

IgorC [24]2 years ago

3 0

X=12 because you would sub the 3 on both sides

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Tiwa spent 1 1/2 hours setting up her computer. It took her 3 times as long to install the software. How long did it take Tiwa t

MrRissso [65]

Answer:

Total time spent by Tiwa to set up the computer and install software = 6 hours

Step-by-step explanation:

Given:

Time spent by Tiwa to set up her computer = $1\frac{1}{2}\ hours$

Time spent to install the software is 3 times the time she took to set up the computer.

To find the total time Tiwa took to set up her computer and install the software.

Solution:

Time spent by Tiwa to install the software can be given as:

⇒ $3\times 1\frac{1}{2} \ hours$

In order to multiply mixed numbers we first change them to fractions.

We multiply the denominator to the whole number and add the numerator to it. Then we write the number as numerator of a fraction with the same denominator.

So, $1\frac{1}{2}=\frac{3}{2}$

So, we have:

⇒ $3\times \frac{3}{2}\ hours$

⇒ $\frac{9}{2}\ hours$

Total time spent by Tiwa to set up the computer and install software can be given as:

⇒ $\frac{3}{2}\ hours+\frac{9}{2}\ hours$

Since denominators are same, so we simply add the numerators.

⇒ $\frac{3+9}{2}\ hours$

⇒ $\frac{12}{2}\ hours$

⇒ $6\ hours$

4 0

2 years ago

Two urns both contain green balls and red balls. Urn I contains 6 green balls and 4 red balls and Urn II contains 8 green balls

34kurt

Presumably, whatever is drawn from Urn I is independent of what is drawn from Urn II. This means

$P(\text{red from Urn 1 AND red from Urn 2})=P(\text{red from Urn 1})\cdot P(\text{red from Urn 2})$

We have

$P(\text{red from Urn 1})=\dfrac4{10}=\dfrac25$

$P(\text{red from Urn 1})=\dfrac7{15}$

so the probability of drawing red balls from both urns is $\dfrac25\cdot\dfrac7{15}=\dfrac{14}{75}$

3 0

2 years ago

How do you know if an equation of a line is a vertical line?

Gemiola [76]

Answer:

similarly,on the graph in vertical line,x only takes value.thus, the equation for a vertical line is x=a,where is a value that x takes.

7 0

2 years ago

Myles had 185 songs in his music library. He then purchased an additional 30 songs. To the nearest percent, what was the percent

Firdavs [7]

Hey!

Myles had 185 songs. He purchased 30 extra songs.

30 ÷ 185 = 0.162 = 16.2%

Answer ⇒ 16.2%

Hope this helps! :)

5 0

2 years ago

Read 2 more answers

X^2+3x+2 x^2+x-6 x^2-x-2

Varvara68 [4.7K]

Answer:

1. (+1)(+2)

2. (−2)(+3)

3. (−2)(+1)

Step-by-step explanation:

3 0

2 years ago