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2 years ago

Below is a table for f(x) = 3x + 1. Using the table, determine the value of x when f(x) = 13

Mathematics

1 answer:

Elena L [17]2 years ago

7 0

3x+1=13
3x=12
x=4
So x is 4

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3 years ago

9) 80 is 20% of what number?

sweet-ann [11.9K]

<h3><u>Answer:</u></h3>

400 is the number.

<h3><u>Step-by-step explanation:</u></h3>

<em>There can be many ways to find the number.</em><em> I have found the number with the help of fractions and multiplication. </em><em>Below is the solution to your problem.</em>

80 = 20/100
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<h3><u>Conclusion:</u></h3>

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$BrainiacUser1357$

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2 years ago

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Jasmine buys 3 T-Shirts and 3 Hats for $11.25. The next day, he buys 4 T-Shirts and 2 Hats for $10. How much does each T-Shirt a

leonid [27]

Answer: Each shirt costs $1.25, and each hat costs $2.5.

Step-by-step explanation:

Let x= Cost per T-shirt, y = Cost per Hat.

As per given,

3x+3y=11.25 (i)

4x+2y=10 (ii)

Multiply 4 to equation (i)

12x+12y=45 (iii)

12x+6y= 30 (iv)

Eliminate (iv) from (iii), we get

6y= 15

⇒ y = 2.5

Put value of y in (i)

3x+3(2.5)=11.25

⇒3x+7.5=11.25

⇒3x= 3.75

⇒x= 1.25

Hence, each shirt costs $1.25, and each hat costs $2.5.

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3 years ago

Below is a table for f(x) = 3x + 1. Using the table, determine the value of x when f(x) = 13​

Below is a table for f(x) = 3x + 1. Using the table, determine the value of x when f(x) = 13