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kvasek [131]
4 years ago
12

Sam puts 14 coins into 4 different rows. The first row has 3 more coins than the second row. The second row has 1 coin less than

the third row. The fourth row now has twice as many coins as the second row. Find the number of coins in each row.
Mathematics
2 answers:
Nastasia [14]4 years ago
4 0

1st Row:

14 - 5 = 9

2nd Row: 2

9 - 2 = 7

3rd Row: 3

7 - 3 = 4

4th Row: 4

4 - 4 = 0


Tamiku [17]4 years ago
4 0

Row 1 :   14 - 5 = 9 Row 2 :  9 - 2 = 7 Row 3 :  7 - 3 = 4 Row 4:  4 - 4 = 0

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Of 25 dogs, 15 weigh more than 35 pounds. What is the percentile rank of a dog that weighs 35 pounds?
maksim [4K]

Basically, 15 out of 25 dogs weigh more than 35 pounds. So that would be:

15/25 = 60/100 = 60%

8 0
4 years ago
At the farmers market 2 pounds of peaches cost $4.20 how much will 4 pounds cost
amm1812

Answer:

$8.4

Step-by-step explanation:

2 pounds of peaches cost $4.20

1 pound of peaches costs = 4.20 /2

4 pounds of peaches cost =\frac{4.20 *4}{2} \\8.4

4 pounds of peaches cost $8.4

8 0
3 years ago
Help with these im posting more so check
UkoKoshka [18]

Answer:

9 is c

10 is b

i think the last one is a but not too sure

Step-by-step explanation:

4 0
3 years ago
The difference of half of a number and three is equivalent to negative five?
swat32

Answer:

-7

Step-by-step explanation:

Let the number be represented with 'Y'

Half of the number will be = Y/2

The difference of half of a number and 3

= Y/2 - 3

Is equivalent to negative 5

That is,

Y/2 - 3 = -5

y/2-3/1 = -5/1

Collect like terms

y/2 = -5/1+3/2

y/2 = -7/2

Multiply both sides by 2

y/2 ×2 = -7/2×2

Y = - 7

Hence the number is negative 7

8 0
3 years ago
What number needs to be added to 5 and 3 so that the ratio of the first number to the second becomes 3:2?
sukhopar [10]

Answer:

7

Step-by-step explanation:

x + 3 : x + 8 : : 2 : 3

(x + 3) \times 3 = (x + 8) \times 2 \\ 3x + 9 = 2x + 16 \\ 3x - 2x = 16 - 9 \\ x = 7 \\ x + 3 = 7 + 3 = 10 \\ x + 8 = 7 + 8 = 15 \\  

10 : 15

2 : 3

7 0
3 years ago
Read 2 more answers
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