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amid [387]
4 years ago
6

Keith bought 7 new baseball trading cards to add to his collection. The next day his dog ate half of collection. There are now o

nly 37 cards left . How many cards did Keith start with?
Mathematics
2 answers:
levacccp [35]4 years ago
6 0

Answer:

67

Step-by-step explanation:

(X+7)/2 = 37

X = 67

GaryK [48]4 years ago
5 0

Answer:

Keith started with (prior to the 7 new cards) 67 baseball cards. However, if we're also counting the new ones, then 74 cards.

Step-by-step explanation:

37*2=74

or x+7/2=37

x+7=74

-7 on both sides

x=67

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What is -6 and -4? find the distance between each pair of integers on a number line.
Brilliant_brown [7]
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8 0
3 years ago
Ashley is covering the front of her house with wood panels. Her house is 10 feet tall and 12 feet wide. She does not want to cov
Luda [366]

Answer:

The width of the door is 4 feet.

Step-by-step explanation:

Given,

For house,

Length = 10 ft

Width = 12 ft

Length of door = 8 ft

Quantity of wood used to cover the front of house = 88 sq. ft

we have to find the width of the door.

Solution,

Since the front of the house is in rectangular shape.

So we use the formula of area of rectangle, i.e. length times width.

Area of the front of the house = 10\times12=120\ ft^2

Let the width of the door be 'w'.

So, area = 8\times w=8w

Now according to question,

Ashley does not want to cover her 8 foot tall front door.

So we can say that;

The quantity of wood used to cover the front of the house is equal to area of the front of the house minus area of the door.

Now we substitute the given values;

88=120-8w

combining the like terms, we get;

8w=120-88\\\\8w=32

Now dividing both side by '8' using division property, we get;

\frac{8w}{8}=\frac{32}{8}\\\\w=4\ ft

Hence The width of the door is 4 feet.

7 0
3 years ago
What is the slope of the line? <br><br> 1. -2<br><br> 2. -1/2<br><br> 3. 1/2<br><br> 4. 2
postnew [5]
Slope formula : slope = (y2 - y1) / (x2 - x1)
(2,3)...x1 = 2 and y1 = 3
(4,2)... x2 = 4 and y2 = 2

now we sub and solve
slope = (2 - 3) / (4 - 2) = -1/2 <==

5 0
4 years ago
How do I describe the real zeroes of this function using Descartes's Rule of Signs?
Serhud [2]
The number of positive roots is the number of changes of signs there are, then decrease by 2 each time and stop when you get to 1 or 0

negative roots, sub every x with -x and reevaluate, count change of signs
decrease by 2 each time and stop when you get to 1 or 0

y=+2x⁵-x⁴-2x³+4x²+x-2
+,-,-,+,+,-
 1    2  3

3 or 1 positive roots

replace x with -x ( baically flip all signs of odd powerd numbers)

y=-2x⁵-x⁴+2x³+4x²-x-2
   -,-,+,+,-,-
     1    2

2 or 0 negative roots



3 or 1 positive roots
2 or 0 negative roots
2nd option is answer

4 0
4 years ago
How are rational numbers and Integers similar? How are they different?
saveliy_v [14]

Answer:

Every integer is a rational number, since each integer n can be written in the form n/1. For example 5 = 5/1 and thus 5 is a rational number. However, numbers like 1/2, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers. They are different because Integers include all whole numbers and their negative counterpart e.g. … -4, -3, -2, -1, 0,1, 2, 3, 4,… is a rational number but not an integer. All rational numbers belong to the real numbers. If two numbers are at the same distance from 0 as in the case of 10 and -10 they are called opposites.

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
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