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Katarina [22]
3 years ago
5

Pedro simplified 4/7 * 8/5 ; his work is shown below. Identify where he made his error. Original division problem: 4/7 * 8/5 Ste

p 1: 4/7 * 8/5 Step 2: 4*5/7*8 Step 3: 20/56 Step 4: 5/14
Mathematics
2 answers:
WITCHER [35]3 years ago
7 0

Answer:

The second answer :)

scoray [572]3 years ago
4 0
I am not sure but I would say either step 2 or 4 but I am not 100% sure I hope you do well. Good Luck:) 
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Johnny's mother has 3 children. The first child is named April. The second child is named May. What is the third child's name
Musya8 [376]
The answer is Johnny. You can conclude from the first sentence of your question. It is stating that Johnny's mother has three children. Johnny is included in the three children. So, the third child's name was Johnny!
Thank you! :D
3 0
3 years ago
From a box containing 10 cards numbered 1 to 10, four cards are drawn together. The probability that their sum is even is 21 21
ankoles [38]

Answer:

Step-by-step explanation:

We know that between 1 to 10 there are 5 even and 5 odd numbers.

We could get 4 even cards , 4 odd cards or 2 odd and 2 even cards

Let´s check all this combinations

Case 1: When all 4 numbers are even:  

We are going to take 4 of the 5 even numbers in the box so we have

5C4=5

Case 2: When all 4 numbers are odd:  

We are going to take 4 of the 5 odd numbers in the box, so we have

5C4=5

Case 3: When 2 are even and 2 are odd:

We are giong to take 2 from 5 even and odd cards in the box so we have

 

5C2 * 5C2

Remember that we obtain the probability from

\frac{Number-of-favourable-Outcome}{Total-number-of-outcomes}

So we have the number of favourable outcomes but we need the Total cases for drawing four cards, so we have that:  

We are taking 4 of the 10 cards:

10C_4=210

Hence we have that the probability that their sum is even

\frac{5+5+100}{210}=\frac{11}{21}

8 0
2 years ago
Graph the function 2(x+2)(x+6)
SOVA2 [1]
The answer is 32 :))
7 0
2 years ago
Read 2 more answers
What is the quotient in simplified form ? Need help please
Gre4nikov [31]

Answer:

  -\dfrac{4a^{12}b^8}{5}

Step-by-step explanation:

The applicable rules of exponents are ...

  \dfrac{1}{a^{-b}}=a^b\\\\a^ba^c=a^{b+c}

Your ratio simplifies to ...

  \dfrac{-8a^8b^{-2}}{10a^{-4}b^{-10}}=-\dfrac{4}{5}a^{8-(-4)}b^{-2-(-10)}\\\\=-\dfrac{4a^{12}b^8}{5}

_____

Please note that simplifying the constants, -8/10 to -4/5, eliminates half the answer choices. Since exponents are only multiplied when a power is raised to a power, you can pretty much eliminate the second choice as being unreasonable. ((a^b)^c = a^(bc))

8 0
3 years ago
A pet store has 5 tanks of fish. Each tank has the same number of fish. The store has 50 fish total. How many fish are in each t
Romashka-Z-Leto [24]

answer : 10 fish in each tank because 10 time 5 equals 50 and there 5 tanks sotaht mean 50 divided by 5 it will be 10 fish

8 0
2 years ago
Read 2 more answers
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