Help ASAP!!!................

Mathematics

1 answer:

Katen [24]3 years ago

6 0

Answer:

For number 7 it is 6x*4

For number 8 it is 3(6+4)

Have a great day :)

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asambeis [7]

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3 years ago

Wionna needs to average 5.8 from 14 judges. The mean score from 13 judges is 5.9. What is the lowest score she can receive from

kirill115 [55]

(5.9*13+s)/(13+1) $\geq$ 5.8

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3 years ago

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Elimination method: ax+by=r, -bx+cy=s

Alex17521 [72]

$\left[\begin{array}{ccc}ax+by=r\\\\-bx+cy=s\end{array}\right]$

Isolate x for $ax+by=r$

$x= \frac{r-by}{a} ; a \neq 0$

Subsititute $x= \frac{r-by}{a}$

$-b \frac{r-by}{a} +cy=s$

Isolate r for : $-b \frac{r-by}{a}+cy=s$

$r=- \frac{as-acy-b^2y}{b} ; a \neq 0;b \neq 0$

For x : $\frac{r-by}{a}$

Subsititute r = $- \frac{as-acy-b^2y}{b}$

$x= -\frac{as-acy-b^2y}{b}/a$

$x = \frac{cy-s}{b}$

The solutions to the system of equations are:

$r= -\frac{as-acy-b^2y}{b}$ and <span> $x = \frac{cy-s}{b}$
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2 years ago

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KengaRu [80]

V= 1/3 Base times height

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2 years ago

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Burka [1]

Answer:

David took 16 oranges.