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3 years ago

Bob and Laquisha have volunteered to serve on the Junior Prom Committee. The names of twenty volunteers,

Mathematics

2 answers:

marishachu [46]3 years ago

6 0

Answer:

Hey there!

1/19 (1/20)=1/380, so the probability is 1/380

Let me know if this helps :)

Law Incorporation [45]3 years ago

3 0

Answer:

1/380

Step-by-step explanation:

Probability of Bob's name drawn first is:

1/20 as there are 20 people with equal chance

And probability of Laquisha's name drawn second is:

1/19 as there are 19 people left with equal chance

Probability of the two events happening is:

1/20*1/19 = 1/380 product of individual probabilities

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Given the inequality -8 < 2, explain what happens when you multiply or divide both sides by 2 and what happens when you multi

Gnoma [55]

Answer:

The inequality sign remains same while multiply or divide both sides by positive numbers.

The inequality sign changes while multiply or divide both sides by negative numbers.

Step-by-step explanation:

The given inequality is - 8 < 2.

Now, if we multiply 2 in both sides then - 16 < 4

Again, if we divide by 2 into both sides then - 4 < 1

Therefore, the inequality sign remains the same while multiply or divide both sides by positive numbers.

Now, if we multiply -2 in both sides then 16 > -4

And, if we divide -2 into both sides then 4 > -1

Therefore, the inequality sign changes while multiply or divide both sides by negative numbers. (Answer)

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Step-by-step explanation:

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2 years ago

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Katy invests a total of $26,500 in two accounts paying 4% and 9% annual interest, respectively. How much was invested in each ac

White raven [17]

A = amount invested at 4%.

b = amount invested at 9%.

we know the total amount invested was $26500, thus a + b = 26500.

whatever% of anything is just (whatever/100) * anything.

how much is 4% of a? well, is just (4/100) * a, or 0.04a.

how much is 9% of b? well, is just (9/100) * b, or 0.09b.

we know the interest yielded for both amounts adds up to $1510, thus 0.04a + 0.09b = 1510.

$\bf \begin{cases}
a+b=26500\implies \boxed{b}=26500-a\\
0.04a+0.09b=1510\\
----------------\\
0.04a+0.09\left( \boxed{26500-a} \right)=1510
\end{cases}
\\\\\\
0.04-0.09a+2385=1510\implies -0.05a=-875
\\\\\\
a=\cfrac{-875}{-0.05}\implies a=17500$

how much was invested at 9%? well, b = 26500 - a.

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3 years ago

X^100+1 divide by x+1

timofeeve [1]

Answer:

x=-1

Step-by-step explanation:

$\frac{x ^{100} + 1 }{x + 1}$