2 years ago

Find x and y. (3,y),(1,9); slope= -5/2

1 answer:

3 0

Answer:

Francine has just set up her Christmas tree. 40% of her ornaments are red. If she has 30 ornaments, then how many are red?

Step-by-step explanation:

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RoseWind [281]

1/2^3 = 1/2 x 1/2 x 1/2 = 1/8

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3 years ago

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

A race is 1 2/3 miles long. If you just run half of the race, how long far have you run?

brilliants [131]

You would run 2.5/3 miles or .833 miles

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The graph below compares plant height to the age of the plant, in weeks.

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Answer: 6

Step-by-step explanation:

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VikaD [51]

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