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Firlakuza [10]
3 years ago
14

Chris wrote a equation and the first step of his solution process, as shown. what math operation did Chris apply in his first st

ep
Mathematics
1 answer:
Burka [1]3 years ago
8 0
Is there some what picture or graph?
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-8x-2y=6 in slope form
Harrizon [31]
Perhaps you mean "slope-intercept" form. Solve for y and reduce the fractions.
.. -8x -6 = 2y . . . . . . . . add 2y-6
.. y = -4x -3 . . . . . . . . . divide by 2

Your line in slope-intercept form is
.. y = -4x -3
4 0
3 years ago
Find the mode of the data.<br> 1, 2, 1, 3, 3, 4, 1<br> The mode is
drek231 [11]

Answer:

1 is the answer.

Step-by-step explanation:

The mode of a data set is the number that occurs most frequently in the set.

5 0
2 years ago
Read 2 more answers
A 25% acid solution must be added to a 40% solution to get 240 liters of 30% acid solution. How many of each should be used ?
schepotkina [342]

Answer:

The number of liters of 25% acid solution = x = 160 liters

The number of liters of 40% acid solution = y = 80 liters

Step-by-step explanation:

Let us represent:

The number of liters of 25% acid solution = x

The number of liters of 40% acid solution = y

Our system of Equations =

x + y = 240 liters....... Equation 1

x = 240 - y

A 25% acid solution must be added to a 40% solution to get 240 liters of 30% acid solution.

25% × x + 40% × y = 240 liters × 30%

0.25x+ 0.4y = 72...... Equation 2

We substitute 240 - y for x in Equation 2

0.25(240 - y)+ 0.4y = 72

60 - 0.25y + 0.4y = 72

Collect like terms

- 0.25y + 0.4y = 72 - 60

0.15y = 12

y = 12/0.15

y = 80 Liters

Solving for x

x = 240 - y

x = 240 liters - 80 Liters

x = 160 liters

Therefore,

The number of liters of 25% acid solution = x = 160 liters

The number of liters of 40% acid solution = y = 80 liters

5 0
3 years ago
Order from GREATEST to LEAST. 342,645 432,784 324,792 415,675 434,775
Reil [10]

Answer:

792, 784, 775, 675, 645, 434, 432, 415, 342, 324.

8 0
3 years ago
There are 45 red tiles,25 blue tiles and 30 green tiles in a bag.
Mazyrski [523]
This is a question of probability.
Probability of picking any color= number of tiles with that color/total number of tiles
Total=45+25+30=100
P(red tile)=(45/100)x60=0.45x60=27
P(blue tile)=(25/100)x60=0.25x60=15
P(green tiles)=(30/100)x60=0.3x60=18
7 0
3 years ago
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