Solve for substitution x+2y=-1 2x+3y=0

What is the value of x? Enter your answer in the box. x =

FinnZ [79.3K]

Answer:

x = 12

Step-by-step explanation:

IMPORTANT: Both answers should add up to 180 if they dont you did it wrong!

(10x - 20) + (6x + 8 ) = 180 plug in 12 for both of them

(10 * 12 - 20) + 6 * 12 + 8) = 120

(120 - 20) + (72+ 8 ) = 180

(100) + (80) = 180

so x = 12

hope this helps please make brainliest

4 0

3 years ago

16x-5y=-33 solve the equation

LUCKY_DIMON [66]

16x - 5y = -33 First, you subtract 16x from both sides of the
-16x -16x equation
-5y = -16x -33 Next, you divide both sides of the equation by -5 to
-5 -5 make "y =" form
y = 16/5x + 33/5

3 0

3 years ago

A) SSS B) SAS C) ASA D) AAS

amm1812

This is B.SAS (side angle side)

4 0

4 years ago

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with mean of 1262 and a s

Andrew [12]

Answer:

a) 1186

b) Between 1031 and 1493.

c) 160

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Normally distributed with mean of 1262 and a standard deviation of 118.

This means that $\mu = 1262, \sigma = 118$