3 years ago

How do you sovle for b w= 2a + 3b

1 answer:

5 0

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OLga [1]

B 0.8 because the probability of rainy days 0.2 then the probability of sunny days is 0.8

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2 years ago

meriva

Not sure but i think it’s B

5 0

3 years ago

gulaghasi [49]

Answer:

The least score the student can get is 71 to get an overall B average at the end of the year.

Step-by-step explanation:

Let the score she needs to get be = x

We now have to take the mean of all the five subjects (including x) and equate it to the least score she can have to get a B grade.

Let us take the least score the student needs to get a B grade to be 85

Mean of all 5 scores =

$\frac{95+83+91+85+x}{5}=85$

$\frac{354+x}{5} =85$

$354+x = 425$

$x = 71$

The least score the student can get is 71 to get an overall B average at the end of the year.

3 0

3 years ago

Lady bird [3.3K]

The simultaneous equations is missing +8

8 0

2 years ago

faust18 [17]

Answer:

Step-by-step explanation:

$-15=\frac{z}{-2}\\\\(-15)(-2)=z\\\\30=z$

4 0

3 years ago