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3 years ago

What is the line that is parallel to 2x-3y=1 ?

1 answer:

3 0

The equation of a line parallel to 2x - 3y = 1 will look exactly the same as this one, EXCEPT you'll have a different constant (i. e., a constant term not equal to 1).
1 - 2x
Solve 2x - 3y = 1 for y: -3y = 1 - 2x, or y = ----------
-3

in which the slope, m, is 2/3. The slope of a line perpendicular to 2x - 3y = 1 would be the negative reciprocal of 2/3; that is -3/2 (answer)

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translate into an algebraic expression: b is decreased by 40% and decreased again by 40% . What is the result ?

MrMuchimi

Answer:

The result is 0.36b

Step-by-step explanation:

Here. we want to translate the wordings into an expression of algebra.

Firstly, we decrease b by 40%

40% is same as 40/100 = 0.4

So decreasing b by 40% = b-0.4(b) = b-0.4b = 0.6b

Now we want to decrease 0.6b by another 40%

= 0.6b -0.4(0.6b)

= 0.6b - 0.24b

= 0.36b

6 0

3 years ago

3p + 10 = 2p + 21 a. 15 b. 17 c. 11 d. 21

jekas [21]

Answer:

c. 11

Step-by-step explanation:

3p + 10 = 2p + 21

Subtract 2p from both sides.

3p - 2p + 10 = 2p - 2p + 21

Simplify.

p + 10 = 21

Subtract 10 from both sides.

p + 10 - 10 = 21 - 10

Simplify.

p = 11

Answer: c. 11

8 0

3 years ago

Read 2 more answers

Nadia is buying sweater for $17.69 and a pair of pants for $24.35. if Nadia pays with a $50 bill, how much change will she recei

mart [117]

$7.96
Just add up what she bought and then subtract how much she has

8 0

2 years ago

Identify any values of data that might affect the statistical measures of spread and center.

ruslelena [56]

C is the correct answer :-)

7 0

3 years ago

X + y = 152, 8.5x + 12y = 1,656 How many hats were sold?

Elodia [21]

Answer:

x = 48 and y = 104

Step-by-step explanation:

Given equations are:

$x+y = 152\\8.5x+12y=1656$

From equation 1:

$x = 152-y$

Putting the value of y in equation 2

$8.5(152-y)+12y = 1656\\1292-8.5y+12y = 1656\\3.5y+1292 = 1656\\3.5y = 1656-1292\\3.5y = 364\\\frac{3.5y}{3.5} = \frac{364}{3.5}\\y = 104$

Now we have to put the value of y in one of the equation to find the value of x

Putting y = 104 in the first equation

$x+y = 152\\x+ 104 = 152\\x = 152-104\\x = 48$

Hence,

The solution of the system of equations is x = 48 and y = 104

The value of variable which was assumed for number of hats, is the total number of hats.

6 0

3 years ago