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scZoUnD [109]
4 years ago
15

Jonathan took a 35 questions test and

Mathematics
2 answers:
Musya8 [376]4 years ago
6 0

Answer:

22.86%

Step-by-step explanation:

(wrong questions)/total questions * 100(%)= (35-27)/35 * 100(%)=22.857...%

Round to the nearest hundredth: 22.86%

Goshia [24]4 years ago
3 0

Answer:

%38

Step-by-step explanatio35 - 27 =8

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What is the average of 32 and 13​
Mila [183]

Answer: I think the answer is 22.5

Step-by-step explanation:

32 + 13 = 45

45/2 = 22.5

First you would add the two sums together then depending on how many you are adding ( like 2 because there are 2 numbers there) you would divide by that number.

7 0
3 years ago
Read 2 more answers
Brooklyn and her friends went into a grocery store and they want to buy some apples and peaches. Each apple costs $1.75 and each
Sphinxa [80]

Answer:

A. $11.75

B. $1.75x + $1.00y = c (cost)

Step-by-step explanation:

A. Because apples cost $1.75 each you could multiply the amount of apples you intent to buy by $1.75 which in this case the amount of apples wanted is  3. $1.75 x 5 = $8.75. You would do the same thing for the peaches except the amount per peach is different. $1.00 x 3 = $3. Then you would add the two amounts together to get the amount Brooklyn and her friend would have to pay. $8.75 + $3 = 11.75

B. Because you multiply the amount of items you intend to get by the cost per item the equation you would follow if the amount of items changed would be. $1.75x + $1.00y = c (cost)

Hope this helps!

Please tell me if I am incorrect I enjoy learning from my mistakes!

Good luck!!

8 0
3 years ago
How many meters in a mile?
denis23 [38]
There are about 1609.34 meters in a mile
4 0
3 years ago
120 A particular telephone number is used to receive both voice calls and fax messages. Suppose that 25% of the incoming calls i
seropon [69]

Answer:

a)0.5611

b)0.1828

c)0.6217

d)0.4389

e)6.25

Step-by-step explanation:

Let's define the following event :

X : ''Calls involving a fax message''

The random variable X can be modeled as a Binomial random variable.

N ~ Bi(n,p)

N ~ Bi(25,0.25)

Where n is the sample and p is the success probability

Let's also define nCr as the combinatorial number :

nCr=\frac{n!}{r!(n-r)!}

The probability function for X is :

P(X=k)=nCk.p^{k}.(1-p)^{n-k}

Where k is the number of success

a) P(X\leq 6)

P(X\leq 6)=P(X=0)+P(X=1)+P(X=2)+P(X=3)+P(X=4)+P(X=5)+P(X=6)

P(X\leq 6)=0.5611

b)P(X=6)=25C6.(0.25)^{6}.(1-0.25)^{19}=0.1828

c) P(X\geq 6)=1-P(X

d)P(X>6)=1-P(X\leq 6)=1-0.5611=0.4389

e) They are asking us about the expected value for random variable X

In a Binomial random variable :

E(X) = μ = n.p

E(X)=25(0.25)=6.25

6 0
3 years ago
The outside temperature was 2 degrees C. The temperature decressed by 4 degrees C. That was the resulting temperature?
Sedbober [7]

Answer:

-2

Step-by-step explanation:

2-4=-2

3 0
3 years ago
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