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Ber [7]
3 years ago
14

Evaluate: 8*2 + 3*5 - 10 + 4^{2}

Mathematics
1 answer:
NikAS [45]3 years ago
6 0
The answer would be 37 I hope this helped
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Solve the system of equations by substitution:<br> y = 3x – 7<br> 6x- 2y= 12
Pie

Answer: no solution

y=3x-7

6x-2y=12

6x-2(3x-7)=12

6x-6x+14=12

14=12

3 0
3 years ago
The amount of sales tax on a new car is directly proportional to the purchase price of the car. Victor bought a new car for $30,
Airida [17]

Answer:

Rita paid 47,500 dollars for the purchase price.

Step-by-step explanation:

We are given the sales tax on a new car is directly proportional to the purchase price of the car which means there is is something k such that

when you multiply it to the sales tax you get the purchase price.

Let's set this equation:

y=kx

Let y represent the purchase price and x the sales tax.

The second sentence tells us that (x,y)=(1500,30000).

We can plug this into y=kx to find the constant k.  (Constant means it stays the same no matter what the input and output is).

So we have:

30000=k(1500)

300    =k(15)      I went ahead and divided previous equation by 100.

Now divide both sides by 15:

300/15=k

Simplify:

20=k

So the equation to use the answer the question is

y=20x

where y is purchase price and x is sales tax.

So we want to know the purchase price on a car if the sales tax is 2375.

So replace x with 2375:

y=20(2375)

y=47500

3 0
3 years ago
Read 2 more answers
Estimate the length of one side of a square floor, if the area is 320 square feet. Give the whole number that is closest to the
RSB [31]
Let us assume the length of a side of the square floor = x feet
Area of the square floor as given in the question = 320 square feet
Then
x^2 = 320
x^2 = (17.89)^2
Then
x = 17.89
   = 18 feet approx

From the above deduction, it can be easily concluded that the correct option among all the options that are given in the question is the second option or option "B".
3 0
3 years ago
What is the domain of the function
Anon25 [30]
The answer is -2,2,3,4
7 0
3 years ago
Which figure has the greatest perimeter?​
Umnica [9.8K]

Figure A: 5•3=15

Figure B: 3•6=18

Figure C: 4•4=16

Figure D: 4•3=12

Figure B has the largest perimeter

4 0
3 years ago
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