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2 years ago

I need help on 5 please help fast

Mathematics

2 answers:

djyliett [7]2 years ago

8 0

the correct answer is 83.

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marysya [2.9K]2 years ago

6 0

The equation you would use is
mean= Test1+test2+test3+test4+test5+Test6+x/Total number of tests

so 83=89+78+69+81+89+90+X/7
First mutiple both sides by 7 so
581=496+X
you then substract the 496 and get 85
so she would need a 85 on the 7th test

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X/5=2/3=5/y 2/3 4/9 1

Mademuasel [1]

$\frac{x}{5}= \frac{2}{3} = \frac{5}{y}$
Break the equation into parts;
$\frac{x}{5} = \frac{2}{3} ; \frac{2}{3}= \frac{5}{y}$
Solving for x;
$\frac{x}{5} = \frac{2}{3}$
x= $\frac{10}{3}$
Solving for y;
$\frac{2}{3} = \frac{5}{y} 
y= \frac{3*5}{2} 
y= \frac{15}{2}$
$\frac{x}{y} = \frac{10/3}{15/2}$
$\frac{x}{y} = \frac{4}{15}$

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Answer:

Step-by-step explanation:

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y = mx + b,

m is the slope.

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y = (4/5)x - 1

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The only equation in the choices with slope 4/5 is in choice C whose line is

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2 years ago

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Answer:

Yes, they are equalent

Step-by-step explanation:

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Answer:

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