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padilas [110]
3 years ago
7

An urn contains 27 red marbles, 24 blue marbles, and 36 yellow marbles. One marble is to be chosen from the urn without looking.

What is the probability of choosing a red or a blue marble?
Mathematics
2 answers:
Sergio039 [100]3 years ago
7 0

Answer:

Step-by-step explanation:

Total number of marbles= 27+24+36=87

P of choosing a red marble=27/87

P of choosing a blue marble=24/87

P(R or B)= 27/87 × 24/87

=9/29×8/29 (both figures are already the smallest fraction)

=0.31×0.276

P=0.085

ValentinkaMS [17]3 years ago
5 0

Answer:

31%

Step-by-step explanation:

27 + 24 +36=87 27/87=.31 31%

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Given that f(x) =<br> X + 3/2<br> a) Find f(2)<br> b) Find f^-1(x)<br> c) Find f^-1(12)
zysi [14]
A) x+3/2
b) x/f
c) 12/f


Mark brainliest please


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5 0
2 years ago
Leona answered all the questions on a test. She had 90% of them correct. There were 40 questions in all. How many did she have c
KengaRu [80]

Answer:

The answer is 36

Step-by-step explanation:

Let the number be <em>x</em>

x/40 is her mark

she got 90% mark correct

x/40 x 100 = 90

by cancellation we get 9 x 4 = 36

HOPE THIS HELPS

6 0
3 years ago
Harrison and Sherry are making decisions about their bank accounts Harrison wants to deposit $200 as a principal amount with an
AlekseyPX

Answer:

Sherry's Method of depositing $200 as a principal now with an interest at 4% compound at monthly will result in more money after two years.

Step-by-step explanation:

We use the Total Amount generated using compound interest formula to solve this question

Formula =

Total Amount(A) = P(1 + r/n)^nt

a) For Harrison

Principal = $200

Interest rate = 2% = 0.02

Time = 2 years

n = compounding quarterly = 4

A = P(1 + r/n)^nt

A = $2,000(1 + 0.02/4)^2×4

A = $2,000(0.005)^8

A = $ 2081.4140878

A = $ 2,081.41

b) For Sherry

Principal = $200

Interest rate = 4% = 0.04

Time = 2 years

n = compounding monthly = 4

A = P(1 + r/n)^nt

A = $2,000(1 + 0.04/12)^2×12

A = $2166.2859184

A = $ 2,166.29

The Total Amount for

Harrison = $ 2,081.41

Sherry = $ 2,166.29

Hence, from the above calculation, Sherry's Method of depositing $200 as a principal now with an interest at 4% compound at monthly will result in more money after two years.

7 0
3 years ago
Please help i will give u brainliest
gulaghasi [49]
It’s the second one. Hope this helped
5 0
3 years ago
What are the coordinates of P?
Nadusha1986 [10]
Coordinates of P are (2,0)
5 0
3 years ago
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