3 years ago

Rivers chemustry class is doing an experiment in which

Mathematics

2 answers:

IRINA_888 [86]3 years ago

6 0

After you complete the sentence we'll comment on what your having trouble with.

dedylja [7]3 years ago

5 0

In which what? please finish the sentence.

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Determine how many solutions if correct bainliest

PolarNik [594]

Answer:

No solutions

Step-by-step explanation:

6x+2y=20

-3x-y=-4 (by rewriting)

6/-3 = 2/-1≠20/-4

-2=-2≠-5

So it has no solutions

5 0

3 years ago

The rising cost of nursing homes is forcing families to plan ahead. Nursing home costs have risen roughly 20% in 3 years, to an

elena-s [515]

Answer: the cost of nursing home care 3 years ago was $37,000

Step-by-step explanation:

$46,000 x 20%=

$46,000 x 20/100= $9,200

$46,000 - $9,200 = $36,800

8 0

3 years ago

20. Three cards are selected form a standard deck of cards and not

frozen [14]

We have a probability of $\frac{13}{52}=\frac{1}{4}$ for the first card to be a diamond. Having drawn this first card without replacement, there are now 12 diamonds remaining in a deck of 51 cards, so the probability that the second card is a diamond, given that the first card was a diamond, is $\frac{12}{51}=\frac{4}{17}.$ Similarly, for the third card, there are 11 diamonds in a deck of 50, so the probability of drawing a third diamond is $\frac{11}{50}.$ Now, since these events are dependent, we multiply these three probabilities to get our answer of $\frac{11}{850}.$