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Mandarinka [93]
3 years ago
14

Kate has 21 coins (nickels and dimes) in her purse. How many nickels and dimes does she have if she has $1.50?

Mathematics
2 answers:
Gre4nikov [31]3 years ago
8 0
She would have 9 dimes and 12 nickels
Lunna [17]3 years ago
4 0
She should have 20 nickels and 5 dimes
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What is the slope of a line that goes through the points (-3, 4) and (2, 8) ?
skad [1K]

Step-by-step explanation:

Slope = y2-y1 / X2-x1

= 8-4/2-(-3)

=4/5

3 0
2 years ago
What is the number? I did many ways but i didn't found it, please guys help me with it. ​
Advocard [28]

Answer:

A). 15

B). -1.2

Step-by-step explanation:

A). [10(x+3)]-20 = 160

10x+30-20 = 160

10x+10 = 160

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10x = 150

x = 150/10

x = 15

B). 5{[4(8+(5x))]-9} = 85

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HOPE THIS HELPS!!!

3 0
3 years ago
Write an algebraic expression to find the AREA of a rectangle with a length of 4x-5 and a width of 7.
blagie [28]

Answer:

28x-35

Step-by-step explanation:

4x*7=28x

5*7=35

8 0
3 years ago
Elaine is 8 years younger than her brother Tyler. The sum of their ages is 34. Define a variable and then write and solve an equ
Damm [24]

Answer: Elaine=13 years old Tyler=21 years old

Step-by-step explanation:

Let x = Elaine's age, so her brother Tyler's age = x+8

 Elaine+Tyler=34

          x+(x+8)=34

             2x+8=34

                 2x=26

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Elaine=13 years old

Tyler=21 years old

6 0
3 years ago
In 2004, a pine tree was 5 3/4 ft tall. If the tree grew at an average rate of 5/6 ft per year for the next 7 years, how tall wo
Nady [450]

Answer:

11 7/12 ft tall

Step-by-step explanation:

5 3/4 + (5/6*7)

139/12

11 7/12

7 0
3 years ago
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