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bazaltina [42]
3 years ago
12

There are 48 cards in a deck and each card is. Either red or black 8 red cards are taken out find the ratio of red to black card

s
Mathematics
1 answer:
-Dominant- [34]3 years ago
4 0

Number of cards = 48

Number of red cards = 48/2 - 8 = 24 - 8 = 16

Number of black cards = 48/2 = 24

Ratio of red cards to black cards = 16:24 = 2:3

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The sum of the square of a positive number and the square of 44 more than the number is 8080. what is the​ number?
mash [69]
Let the number be x, therefore, its square is x², and 44 more than the number is x+44 whose square is (x+4)².
Thus the sum will be x² + (x+44)²² = 8080
                                  x² + x² + 88x + 1936= 8080 Combining the right terms 
                                  2x² + 8x - 6144 = 0 dividing by 2
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                          x = 37.6 or -81.6
Therefore, the positive number is 37.6
                                
5 0
3 years ago
Read 2 more answers
Which expression would represent the cost of one CD, if the total cost for three of them is $362
Fiesta28 [93]

Answer:

One CD would've been 120.67

Someone correct me if I'm wring please

8 0
3 years ago
Do consumers spend more on a trip to Store A or Store​ B? Suppose researchers interested in this question collected a systematic
FinnZ [79.3K]

Answer:

We can be 95% confident that consumers spend between $4.04 and $15.96 less at Store A than the consumers spend at Store B.

Step-by-step explanation:

Confidence Intervals give an estimate as range of values for a statistic concerned at a <em>confidence level</em>.

In this case the statistic is the mean difference between Store A and Store B purchase amounts and the confidence level is 95%.

Confidence Interval can be calculated using M±ME where

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4 0
3 years ago
Please help, thank you!
Nadya [2.5K]

Answer:

37 and 26

Step-by-step explanation:

Let the bigger number be x and the smaller number be y.

Then the two numbers total 63 will give us:

y+x=63------>eqn1

The two numbers have a difference of 11.

y-x=11------->eqn2

We add equations 1 and 2 to obtain:

2y=74

Divide both sides to get:

y=37

Put y=37 into eqn2 to get:

37-x=11

x=37-11

x=26

This larger number is 37 and the smaller number is 26

4 0
3 years ago
48 million miles in expanded form
WARRIOR [948]

Answer:

Expanded Notation Form:

 40,000,000  

+ 8,000,000  

+ 0  

+ 0  

+ 0  

+ 0  

+ 0  

+ 0  

Expanded Factors Form:

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+ 8 × 1,000,000  

+ 0 × 100,000  

+ 0 × 10,000  

+ 0 × 1,000  

+ 0 × 100  

+ 0 × 10  

+ 0 × 1  

7 0
3 years ago
Read 2 more answers
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