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sergejj [24]
3 years ago
10

Hollie increased the rate that she can solve multiplication problems by 70%. If she could originally solve 20 problems in a minu

te, how many can she solve in a minute now? (HOW DID YOU GET YOUR ANSWER PLEASE SHOW ME WORK!!)
A. 7.4
B. 34
C. 25.11
D. 10
E. 350%
F. 3.5%
G. 7.6
H. 29
I. 22
Mathematics
1 answer:
netineya [11]3 years ago
7 0
D I think I’m not sure
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What is MEAN ABSOLUTE DEVIATION and how do you find it?
Fynjy0 [20]

Step-by-step explanation:

Step 1: Calculate the mean. Step 2: Calculate how far away each data point is from the mean using positive distances. These are called absolute deviations. Step 3: Add those deviations together. Step 4: Divide the sum by the number of data points.

8 0
2 years ago
Assume the random variable X has a binomial distribution with the given probability of obtaining a success. Find the following p
Lisa [10]

Answer:

0.0064

0.00032

Step-by-step explanation:

Given the details:

P(X > 3), n = 5, p = 0.2

The binomial distribution is related using the formula:

P(x = x) = nCx * p^x * q^(n-x)

q = 1 - p = 1 - 0.2 = 0.8

P(X > 3) = p(x = 4) + p(x = 5)

P(x = 4) = 5C4 * 0.2^4 * 0.8^1 = 5 * 0.2^4 * 0.8^1 = 0.0064

P(x = 5) = 5C5 * 0.2^5 * 0.8^0 = 1 * 0.2^5 * 0.8^0 = 0.00032

3 0
3 years ago
Pls help me this is due tomorrow
Anna [14]

Step-by-step explanation:

Claim: There's 14 Goats and 9 Chickens!!

Data:

Working with the Provided Information.

Let the Number of goats be x

let the Number of Chickens be y

x + y = 23..... (i)

Since the goat Possesses Two Pair of Legs... Which is a Total of 4 Legs... We say Let its Contribution be 4x.

The Chicken has Only a Pair Of Legs...Which is a total of 2 legs.... We say let its contribution be 2y

4x + 2y = 74 .....(ii)

BRINGING BOTH EQUATIONS TOGETHER.

x + y = 23

4x + 2y = 74

From Eqn i

x= 23 - y

Substitute into eqn ii

4(23 - y ) + 2y = 74

92 - 4y + 2y = 74

92 - 2y = 74

2y = 92 - 74

2y = 18

y= 9.

Substitute y into any of the eqns to get x

x + y = 23

x + 9=23

x = 23 - 9

x = 14

This simply proves that there are 14 Goats and 9 Chickens!!!.

HAVE A GREAT DAY!

7 0
3 years ago
Guided Practice
vfiekz [6]

Answer:

Step-by-step explanation:

r-13,725 <_ 1650

r-<_ 15,375

r-13725>_-1650

r >_12,125

Tuition could be between $12,125 and $15,375

PLS MARK ME AS BRAINLIEST

7 0
3 years ago
ASAP I NEED HELP NOWW
marshall27 [118]

27 x 1.25= 33.75

5 x 1.99=9.95

1 x 1.50= 1.50

add that up =45.2

/26 students = 1.73 dollars

4 0
3 years ago
Read 2 more answers
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