MATHEMATICS MIDDLE SCHOOL

The price of a television decreased from $275 to $190 during a clearance sale. What is the percent of decrease in the price? Round to the nearest percent, if necessary. I think it's D.

A. 29% B. 31% C. 45% D. 69%

Answers

Answer 1
Answer: 195=275-275p -275 -27 -80=-275p You do -80 divided by -175 which is 0.45 and your answer is C45%.

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Write the equation of the line in slope-intercept form using y=mx+b​

Answers

Answer:

y=x-5

Step-by-step explanation:
The answer : Y=x-5
The line crossed the y-axis at (0,-5) Meaning -5 is the y-intercept

Chase collects $27.34 for a fundraiser Sydney collects$9.83 more than Chase ally collects 4times as much as Sydney. how much does ally collects. please explain by step by step guide me to

Answers

So Chase has $27.34.
You add $27.34 to $9.83. (Which is $37.17).
That will give you the amount of how much Sydney has.
To find how much Ally has you times $37.17 by 4.
Basically, you are doing $37.17 + $37.17 + $37.17 + $37.17.
When you have finished adding them you will get the answer.
So the answer is $148.68
Chase collects $27.34 and Sydney got $9.83 more. So you add $27.34 and 9.83 given Sydney a total of $37.17. Therefore if Ally collected 4 times more than Sydney you will multiply $37.17 by 4 given Ally a total of $148.68

Simplify (8j^3 - 3j^2 + 5)-(4j^3+8j^2+7j-6)​

Answers

Answer:

4j^3 + 5j^2 + 7j - 1

Step-by-step explanation:

(8j^3 - 3j^2 + 5)-(4j^3+8j^2+7j-6)​

Distribute the -1 in front of the (4j^3+8j^2+7j-6)​

8j^3 - 3j^2 + 5 - 4j^3 + 8j^2 + 7j - 6

We can combine anything with the same exponent number that "j" is raised to

8j^3 - 4j^3 = 4j^3

-3j^2 + 8j^2 = 5j^2

7j is just 7j since there is nothing else with just j in it

5 - 6 = -1

Add these together

4j^3 + 5j^2 + 7j - 1 is our final answer

A rectangular rug is 4 feet by 9 feet. What is the side length of a square with the same area.PLEASE HELP!

Answers

Finding area of any rectangular object is length × width. So, 4 × 9 = 36 is the area of the rectangular rug.

The area of a square is one side of the square times itself. So, side × side = area of square. Let's call the sides s. I'm going to substitute the formula for area of a square with s.

s × s = area of a square.
We know that the area of the rectangle is the same as the area of the square. So, s × s = 36.

When you have the same side multiplied by itself, that's equivalent to that side to the second power. So, s × s = s^2 = 36. To get one side, we must take the square root of both sides: sqrt (s^2) = sqrt (36).

s = 6. One side of the square has a length of 6 feet. Good luck!

idk

Step-by-step explanation:

Please explain how you got the answer, i dont understand the subject

Answers

Answer:

y=mx+c

We have to find the value of m and c.

Let's substitute the value of x and y from the table.

When x=1, y=15,

15= m(1)+c

m +c= 15 ------(1)

Now substitute another set of x and y values.

When x=2, y=24,

24= m(2)+c

2m +c= 24

c= 24 -2m ------(2)

Let me rewrite the two equations so that it is clearer for you to see.

m + c= 15 -----(1)

c = 24 -2m -----(2)

subst. (2) into (1):

m+ 24-2m= 15

-m= 15-24 (bring constants to 1 side, m terms to the other)

-m= -9 (simplify)

m= 9 ( divide by -1 throughout)

subst. m=9 into (2):

c= 24 -2(9)

c= 24-18

c= 6

Thus, the equation is y=9x+6.

When the cat is 3 years old, x=3.

When x=3,

y= 9(3)+6

y= 33.

Hence, the cat is 33 years old in human years.

Please help me find the answer and leave steps. Honest educational answers please.

Answers

You just cancel the +2y and the -2y because they are the same value and different signs then solve for X that gives you -3 and then add -15 along with -6 to give you -21 (cancel the negative sign) and you'll divide 21 and 3 to give you 7 and the substitute in the original equation for x (7) to get y. Idk if the answer choices are correct though....
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