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3 years ago

What is an expression which represents the sum of (3x-7y) and (10x+3y) in simplest terms?

Mathematics

1 answer:

Kobotan [32]3 years ago

5 0

Answer:

3 x − 4 y + 10

Step-by-step explanation:

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The probability of drawing a pearl bead out of a bag of mixed beads is 2/3. What is the probability of drawing a bead which is n

Georgia [21]

Answer:

$\frac{1}{3}$ probability of drawing a bead which is not a pearl

Step-by-step explanation:

For each bead that you draw, there are only two possible outcomes. Either it is a pearl bead, or it is not. The sum of these probabilities = 100% = 1.

2/3 probability of drawing a pearl bead.

p probability of drawing a non pearl bead.

What is the probability of drawing a bead which is not a pearl?

$p + \frac{2}{3} = 1$

$p = 1 - \frac{2}{3}$

$p = \frac{3*1 - 2}{3}$

$p = \frac{1}{3}$

$\frac{1}{3}$ probability of drawing a bead which is not a pearl

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2 years ago

Which points are on the graph of the function rule ƒ(x) = 10 – 4x? ( –18, 2), ( –10, 0), ( –2, –2) (18, –2), (10, 0), (2, 2) (–2

Artyom0805 [142]

(2, 2 ), (- 2, 18 ), (0, 10 )

substitute the x-coordinate of each point into f(x) and if the value is equal to the y-coordinate then it is on the graph of f(x)

(- 18, 2 ) ⇒ y = 10 + 72= 82 ≠ 2

(- 10, 0 ) ⇔ y = 10 + 40 = 50 ≠ 0

(- 2, - 2 )⇒ y = 10 + 8 = 18 ≠ 2

(18, - 2 ) ⇒ y = 10 - 72 = - 62 ≠ - 2

(2, 2 ) ⇒ y = 10 - 8 = 2 ⇒ (2, 2 ) is on graph

(- 2, 18 ) ⇒ y = 10 + 8 = 18 ⇒ (- 2, 18 ) is on graph

(0, 10 )⇒ y = 10 - 0 = 10 ⇒ (0, 10 ) is on graph

(2, - 18 ) ⇒ y = 10 - 8 ≠ - 18

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2 years ago

4.30 makeup; 50% discount

elena55 [62]

Answer:

do you need the awnser to the equation

Step-by-step explanation:

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2 years ago

Lizette is training for a marathon. at 7:00 she left her house and ran until 8:15, then she walked until 11:15. she covered a to

icang [17]

Lizette ran for 1.25 hours and walked for 3 hours.

distance = speed × time

Her total distance is the sum of her distances at the different speeds. Let w represent her walking speed in mi/h. For distances in miles, speeds in miles per hour, and time in hours, the problem statement tells us ...

19 = (w+5)(1.25) + (w)(3)
19 = 4.25w + 6.25 . . . . collect terms
12.75 = 4.25w . . . . . . . subtract 6.25
3 = w . . . . . . . . . . . . . . . divide by 4.25

Lizette's walking speed is 3 mph.
Lizette's running speed is 8 mph.

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2 years ago

732178+167-542137= the answer and work it out

DIA [1.3K]

Answer:

Step-by-step explanation:

5 0

2 years ago

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