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3 years ago

Question 2 Solve by substitution. 2x – 10y = 14 2x + 6y = -2

Mathematics

1 answer:

Fed [463]3 years ago

8 0

Answer:

x= 2 and y= -1

Step-by-step explanation:

x=7 +5y

14+16y=−2

y=−1

Substitute y=-1y=−1 into x=7+5yx=7+5y.

x=2

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There are 7 Democrats and 6 Republicans on a local city council. A planning committee of 6 for affordable housing needs to be

Brut [27]

Answer:

The probability is $0.383$ .

Step-by-step explanation:

There are 7 democrats and 6 republicans

Number of ways in which 4 democrats and 2 republicans can be selected= ${}^{7}{{C}_{4}}\times {}^{6}{{C}_{2}}$

Number of ways in which 5 democrats and 1 republican can be selected= ${}^{7}{{C}_{5}}\times {}^{6}{{C}_{1}}$

Number of ways in which 6 democrats can be selected = ${}^{7}{{C}_{6}}$

So, favourable outcomes are ${}^{7}{{C}_{4}}\times {}^{6}{{C}_{2}}+{}^{7}{{C}_{5}}\times {}^{6}{{C}_{1}}+{}^{7}{{C}_{6}}$

Total possible outcomes = ${}^{13}{{C}_{6}}$

Now, probability= $\frac{Favourable}{Possible}=\frac{{}^{7}{{C}_{4}}\times {}^{6}{{C}_{2}}+{}^{7}{{C}_{5}}\times {}^{6}{{C}_{1}}+{}^{7}{{C}_{6}}}{{}^{13}{{C}_{6}}}=0.383$

Learn more about probability:

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3 years ago

Which statement is true about the measure of angle R’??

aleksley [76]

Answer:

Angle R is an Angle

Step-by-step explanation:

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3 years ago

On his bike, Jason can travel 8 miles in 50 minutes.

d1i1m1o1n [39]

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24 miles

Step-by-step explanation:

50 minutes = 8 miles

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2 years ago

Read 2 more answers

72 + 24 (distributive property)

Dmitrij [34]

The answers is 96
Dont u just add?

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