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Ahat [919]
3 years ago
14

What is the solution to the following system of equations? 4x + 2y = 18 x − y = 3

Mathematics
1 answer:
Vikki [24]3 years ago
8 0

Answer:

the top one

Step-by-step explanation:

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PLZZZZZZzzzzzZzZzZzZzZZz BRAINLIESTTTTTTTT
Cloud [144]

Answer:

A) 3, B) 8 and 4, C) 12

Step-by-step explanation:

There are 3 terms: 8x^2, 4x, and 12.

The coefficiemts are numbers that come before a variable. That's why the coefficients are 8 and 4.

The constant is the number that doesn't come with a variable, thus 12.

5 0
3 years ago
Read 2 more answers
A glass contains 250.55 mL of water the actual amount of water in a glass was 279.45 ml to the nearest tenth of percent what is
dezoksy [38]
%= (exact-appropriate)/exact
so 279.45-250.55 divided by 279.45  
basically .103417 nearest tenth is 10.3%
i believe 
5 0
3 years ago
Louise bought 1 1/4 pounds of roast beef at $2.00 per pound and ​ 2 1/2 ​pounds of turkey at $1.50 per pound. What was her total
Travka [436]
To do this you would have to do $2.00 times 1 1/4 to get the price of roast beef and $1.50 times 2 1/2.
1)To make it easier change the fractions to decimals.
(1.25)&(2.5)
2) Then do $2.00(1.25) to get
$2.50 for roast beef
3) Then do $1.50(2.50) to get
$3.75 for turkey
4)then add them together
5)3.75+2.50=$6.25

6 0
3 years ago
I need help asap ple​
Vinil7 [7]

Answer:

its 16

Step-by-step explanation:

6 0
3 years ago
The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.917 g and a standard deviation
Nutka1998 [239]

Answer:

z = \frac{0.872-0.917}{\frac{0.303}{\sqrt{37}}}= -0.903

And we can find this probability to find the answer:

P(z

And using the normal standar table or excel we got:

P(z

Step-by-step explanation:

Let X the random variable that represent the amounts of nocatine of a population, and for this case we know the distribution for X is given by:

X \sim N(0.917,0.303)  

Where \mu=0.917 and \sigma=0.303

We have the following info from a sample of n =37:

\bar X= 0.872 the sample mean

And we want to find the following probability:

P(\bar X \leq 0.872)

And we can use the z score formula given by;

z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}

And if we find the z score for the value of 0.872 we got:

z = \frac{0.872-0.917}{\frac{0.303}{\sqrt{37}}}= -0.903

And we can find this probability to find the answer:

P(z

And using the normal standar table or excel we got:

P(z

6 0
3 years ago
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