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3 years ago

Which property of equality would you use in the first step of solving this equation 2x-6=12

Mathematics

2 answers:

svetoff [14.1K]3 years ago

4 0

Answer:

Step-by-step explanation:

i dont know

horsena [70]3 years ago

3 0

1. Add 6 on both sides, under 6 and under 12

2. 6 cancels out

3. Add 12 and 6 to get 18

4. Bring down 2x equal to 18 and divide by 2

5. 2 cancels out

6. 18 divided by 2 equals 9

7. X=9

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To make a shade of lavender paint jon mixes 4 ounces of red tint and 28 ounces of blue tint into one gallon of white paint. if 2

kirill [66]

You can write this as a ratio to find the answer, but you first need to convert the gallon of white paint into ounces, which is 160 ounces. The ratio, red to blue to white, is 4:28:160, which you can simplify by dividing by 4 into 1:7:40. If 80 ounces of red tint are used, you need to multiply each value in the ratio by 80, which gives you 80:560:3200. This shows that you need 560 ounces of blue tint, which can also be written as 3.5 gallons. I hope this helps!

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3 years ago

On any day, the probability of rain is 0.3. The occurrence of rain on any day is independent of the occurrence of rain on any ot

poizon [28]

<h3>Answer: 0.47178 Step-by-step explanation: Find the probability for each p(X=x) up to 5 using the equation: (x-1)C(r-1)*p^r * q^x-r, where x is number of days, p = .3 (prob of rain). q=.7 (prob of not rain), and r=2 (second day of rain). also C means choose. So p(X=1) = 0 p(X=2) = 1C1 * .3^2 * .7^0 = .09 P(X=3) = 2C1 * .3^2 * .7^1 = .126 P(X=4) = 3C1 * .3^2 * .7^2 = .1323 P(X=5) = 4C1 * .3^2 * .7^3 = .12348 Then add all of them up 0+.09+.126+.1323+.12348 = .47178</h3>

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3 years ago

Two fair dice, one blue and one red, are tossed, and the up face on each die is recorded. Define the following events:

ZanzabumX [31]

Answer:

Step-by-step explanation:

Given that two fair dice, one blue and one red, are tossed, and the up face on each die is recorded.

a) P(E) = P(the difference of the numbers is 3 or more}

Favourable events are (1,4) (1,5)(1,6) (2,5) (2,6) (3,6) (4,1) (5,1) (5,2) (6,1) (6,2)(6,3)

P(E) = $\frac{12}{36} =\frac{1}{3}$

b)P(F)

Favourable events for F = (1,1) (2,2)...(6,6)

P(F) = $\frac{6}{36} =\frac{1}{6}$

c) P(EF)

There is no common element between E and F

P(EF) =0

4 0

3 years ago

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FOR BRAINLSIT!!!<br><br> A<br> B<br> C<br> D

Phantasy [73]

Answer:

The 2nd option is correct

Step-by-step explanation:

The only numbers on a dice greater than 4 are 5 and 6, and we want to get the color blue, so the 2nd option is correct.

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3 years ago

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a total of 387 tickets were sold for the school play. they were either adult tickets or student tickets. there were 63 fewer stu

Alex17521 [72]

Student Tickets - x-64

Adult Tickets - x

x+x-64=386

2x=450

x=225

225 adult tickets were sold,

161 student tickets were sold.

Hope that helps!

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3 years ago