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kodGreya [7K]
3 years ago
7

Graph the system below and write its solution. 3x+y=6 y=-1/3x-2

Mathematics
1 answer:
marin [14]3 years ago
4 0

Answer:

Step-by-step explanation:

Here's the system graphed. Not sure what you meant by solution though, what are you trying to find?

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If 65%=x/100 then x =?
quester [9]
Answer:
65
Why?
This can be rewritten as;
0.65 = x/100
It can be rewritten again to get x on the left side alone;
-x/100 = -0.65
Now, multiply each term by -100 to further distinguish x;
x = 0.65*100
Now, solve;
x = 65
There’s your answer.
Check:
0.65 = 65/100
0.65 = 0.65
5 0
3 years ago
An investigation of the relationship between height of a child and age (in months) found that age explained 64% of the variation
marusya05 [52]

Answer:

r = 0.8

Step-by-step explanation:

The correlation coefficient, "r", represents the correlation between the independent and dependent variable. The closer "r" is to 1, the better the correlation. Likewise, if "r" is closer to 0, there will be hardly any correlation.

The coefficient of determination, R², is the proportion of the variation in the dependent variable that is predictable from the independent variable, or how well the data fits the regression model.

In this case, since R²=64%=0.64, then r=√(0.64)=0.8

This means that there is a strong correlation between age and height.

7 0
3 years ago
What is y=-2 4x-3y=18 using substitution please show steps
zhuklara [117]
Substitute y for -2 so <u>4x-3(-2)= 18</u>, which -3 * -2 is +6 so then it'd be <u>4x + 6 = 18</u>, then subtract 6 so <u>4x = 12</u>, then divide by 4 so <u>x = 3</u>. dont forget that in match the positive&negative signs count.
8 0
3 years ago
How to find a factor pls give good example​
solong [7]

Answer:

example, 3 and 6 are factors of 12 because 12 ÷ 3 = 4 exactly and 12 ÷ 6 = 2 exactly. The other factors of 12 are 1, 2, 4, and 12.

Step-by-step explanation:

8 0
2 years ago
Country A produces eight times the amount of diamonds in carats produced in country B. If the total produced in both countries i
iren [92.7K]

Answer:

A=8,000,000

B=1,000,000

Step-by-step explanation:

A=8B

A+B=9,000,000

8B(because A=8B)+B=9,000,000

9B=9,000,000

B=1,000,000

A=8*B=8*1,000,000=8,000,000

6 0
3 years ago
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