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pishuonlain [190]
3 years ago
9

Given that 3x - 5y = 2Find x when y = 8​

Mathematics
2 answers:
timurjin [86]3 years ago
6 0

Answer:

x = 14

Step-by-step explanation:

Given

3x - 5y = 2 ← substitute y = 8 into the equation

3x - 5(8) = 2

3x - 40 = 2 ( add 40 to both sides )

3x = 42 ( divide both sides by 3 )

x = 14

RSB [31]3 years ago
4 0

Answer:

x=14

Step-by-step explanation:

If the y=8 then plug it in the equation:

3x-5(8)=2

It will be:

3x-40=2

3x=42

x=14

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DIA [1.3K]

Answer:

Tiffany purchase the better buy.

Step-by-step explanation:

given data

Tiffany paid  = $38

snowflake obsidian = 9 pounds

Tony paid = $19

same type of stone = 3 pounds

solution

Tiffany shopped well in this scenario. Mainly because Tiffany paid less per pound than Tony. This can be calculated by dividing the total amount paid by the amount received by each

so for Tiffany

= $38 ÷ 9

= $4.22 per pound

and for Tony  

=$19 ÷ 3

= $6.33 per pound

so that here Tiffany paid $4.22 per pound and Tony paid $6.33 per pound

so here whole $2.11 more than Tiffany

so that with this Tiffany purchase the better buy.

4 0
2 years ago
Select all that apply.<br> Which words describe the square root of 100?
abruzzese [7]

The square root of a number is any number that when multiplied against itself becomes the number under symbol denoting for the square root operation.

The number 10 is the result of the square root operator applied to the number 100 because 10 * 10 = 100.

The number 10 is a natural number because natural numbers are positive integers. It is also an integer, whole number, and rational.

Hope this answer helps!

5 0
3 years ago
Write an equation of the line passes through the given points (6,-3),(1,2)
adoni [48]

Answer:

y = -x+3

Step-by-step explanation:

First find the slope

m = ( y2-y1)/(x2-x1)

    = ( 2 - -3)/( 1 - 6)

   ( 2+3)/( 1-6)

   5/ -5

   -1

The slope is -1

We can use slope intercept form

y = mx+b  where m is the slope and b is the y intercept

y = -x+b

Substitute a point into the equation

2 = -1 +b

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6 0
3 years ago
Read 2 more answers
What is the probability of rolling an even number with one roll of a number cube?<br>​
oee [108]

Answer:

50% or 1/2

Step-by-step explanation:

There is an even amount of even and odd numbers on a number cube, therefor it is split half and half, giving you 50%.

3 0
2 years ago
A 21 inch piece of steel is cut into three pieces so that the second piece is twice as long as the first, the third piece is 3 i
mestny [16]
3f+3=t
s=2f
21=f+s+t                       

21=f+(2f)+(3f+3)
21=6f+3
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3=first
6=second
12=third


8 0
3 years ago
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