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julsineya [31]
3 years ago
6

18.

Mathematics
1 answer:
ASHA 777 [7]3 years ago
3 0

Answer:

19/100 which is already simplified( it can't be simplified)

How I got the answer: subtract 81 from 100 and you'll get 19.

Put 19 over 100 (19/100) and there's the answer.

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Solve four tenths plus four ninths
weeeeeb [17]
The answer is Eight ninetieths
Pls mark as brainliest thx
6 0
3 years ago
There are 4 red marbles and 8 blue marbles in a bag. Jamie will randomly pick one marble and flip a coin. what is the probabilit
Yuri [45]

Answer:

d

Step-by-step explanation:


3 0
3 years ago
Find the area of the square rug if it is side is (7X +4) feet.
likoan [24]

Answer:

49x^{2}+56x+16 ft squared.

Step-by-step explanation:

Alright, so we are given that we have a rug that has a side of 7x+4 feet. With this information, we are able to determine the area of the square rug. Considering that it is a square rug, all the sides are equal to each other because a square has four equal sides and angles.

To solve this, you can do it in two ways.

One, write it as (7x+4)2. That 2 is supposed to represent squared.

If you know the rule, this is a perfect square trinomial.

The formula is a squared plus 2ab plus b squared. 7 and 4 are your a and b values. 7x squared is 49x squared and 4 squared is 16.

2ab, multiply 2 times 7x times 4. That is 56x.

Therefore, the area is 49xsquared plus 56x+16.

Another way is to write it like this (7x+4) (7x+4).

Since it is an exponent, we are multiplying the same thing two times. Apply the Distributive Property.

E.G. 2(x+5)= 2x+10.

With this, you are distributing two numbers into another two numbers. 7x times 7x is 49x squared and 7x times 4 is 28x. Then, go to 4. 4 times 7x is also 28 x and 4 times 4 is 16. Now, combine the like terms. 49x squared plus 28x plus 28x or 56x plus 16.

This represents your area.

I hope this helps, and I hope you have a good day!

5 0
3 years ago
a customer buys a diiferent book that has an original selling price of $38 the books is discounted 25% the customer must pay a 6
Nimfa-mama [501]
Answer: 30.21$
Explanation:
1. 38• 0.25(25%)=28.50
2. 28.50•0.06(6)=1.71 ( the sales taxes)
3. 28.50+1.71=30.21$
Hope this helps. If it’s correct please tell me.
7 0
2 years ago
If f=ma, what is the value of f when m=5 and a=3?
Feliz [49]
The answer is:  15 .
__________________________                                                _____
{Note:  If this is a physics problem ; and the formula: "F = m*a" is for:  
    "Force = mass * acceleration" ;  be sure that the correct units are used!}.
_______________________________________________________
Explanation:
_______________________________
 F = m * a ;

Given m = 5 ;
        
           a = 3 ;
___________________
 F = 5 * 3 = 15 .
_____________________
3 0
3 years ago
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