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lianna [129]
3 years ago
8

Y=-x-4 y=xsolve system of equations algebraically​

Mathematics
1 answer:
Serhud [2]3 years ago
4 0

Answer:

y=-2 x=-2

Step-by-step explanation:

y=-x-4

y=x

you can plug y in for x in the first equation by using substitution

y=-y-4

and then you solve for y

2y=-4

y=-2

so y equals -2. Since y=x, x also equals -2. Therefore

y=-2 x=-2

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Translate the sentence into an equation Twice the difference of a number and 9 is equal to 5use the variable w for the unknown n
TEA [102]

Let w the unknown number. Then, you have

\begin{gathered} 2(w-9)\rightarrow\text{ Twice the difference of a number and 9} \\ 2(w-9)=5\rightarrow\text{Twice the difference of a number and 9 is equal to 5} \end{gathered}

3 0
1 year ago
The table shows the percentage of students in each of three grade levels who list soccer as their favorite sport. Soccer Sophomo
Olegator [25]
The answer should be roughly 35.4%. 

You can obtain this answer by looking at the percentage of each subgrouping. For instance, 33% of the class in juniors and 45% of them list soccer as their favorites. Thus showing that 14.85% of the entire school is made up of juniors that enjoy soccer. 

If you do the totaling for all soccer lovers, you get a total of 41.95% of the school. By dividing the two numbers you get the answer above. 
4 0
3 years ago
Who knows how to do this please i need help I don’t understand
ArbitrLikvidat [17]

Answer:

9,4,0,1

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3 0
3 years ago
What is the answer to ...8.42 x 9
3241004551 [841]

Answer:

75.78

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8.42*9=75.78

6 0
3 years ago
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Answer:

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