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3 years ago

Y=4x-6 2x-3y=8 if this problem is to be solved by substitution , which is the correct step

Mathematics

1 answer:

Gekata [30.6K]3 years ago

4 0

Answer:

x=1, y= -2

Step-by-step explanation:

Please see the attached pictures for full solution.

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A jewelry store has 9/10 of an ounce of gold they need to split into one 6 ounce groups how many groups going to make

Mariana [72]

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2 years ago

Please help (Will make brainliest!!) <br> Solve and explain steps

vlada-n [284]

If angle ec is a bisector then angles Bec and ced are the same making them both 4x+1. we know a line segment equals 180°. so if we take the 11x-12 and add it to 2(4x+1) we end up with 19x-10=180. you add 10 to both sides and get 19x=190 then you divide by both sides. you'll end up with x=10. you plug In the 10 with aeb and aec and add them together to get 139°. if you're looking for the equation, it's 15x-11.

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3 years ago

Tyler is offered to choose between three boxes that look identical. The first box contains 1 red pills and 19 blue pills, the se

Dafna1 [17]

Answer:

A) 0.15

B) 0.36

Step-by-step explanation:

First Box consist 1 red pills and 19 blue pills

second box consist 6 red pills and 14 blue pills

Third box consist 2 red pills and 18 blue pills

a) Prob ( randomly chosen pill is red) $= \frac{1}{3} \times \frac{1}{20} + \frac{1}{3} \times \frac{6}{20} + \frac{1}{3} \times \frac{2}{20}$

$\frac{1}{60} (1+6+2) = 0.15$

b)Prob ( 1 reds and 10 blue pilss) = $\frac{1}{3} \frac{^1C_1\times ^{19}C_{10}}{^{20}C_{11}} + \frac{1}{3} \frac{^6C_1\times ^{14}C_{10}}{^{20}C_{11}} + \frac{1}{3} \frac{^2C_1\times ^{18}C_{10}}{^{20}C_{11}}$

$= \frac{1}{3} 1.106 = 0.368$

7 0

2 years ago

What is 36-8z by factoring

tatyana61 [14]

Answer:

z=9/2

Step-by-step explanation:

36-8z=0

36=8z

z=36/8

z=9/2

8 0

2 years ago

Six more than the product of a number and 9 equals 5.

ahrayia [7]

Answer:

6 + 9x = 5 is the equation for it.

5 0

1 year ago