for 15 weeks, sue put the same amount of money in a jar. then she took $9 out to spend on a friend's birthday present. she had $21 left. how much did she put in each week?

Answers

Answer 1
Answer: x=amount\ she\ put\ in\ each\ week \n 15x-9=21 \n 15x=30 \n x= (30)/(15) \n x=2 \n \boxed{2\ dollars\ each\ week}
Answer 2
Answer: $2 because you add the 9 back to the 21 then divide by 15 to get 2

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What is 3 divided by 14 in fraction form?

Answers

The requried 3 divided by 14 in fraction form is 3/14.

What is the fraction?

A fraction is a mathematical concept that can be used to express a portion of a whole or a number that can be written as the ratio of two integers. In a fraction, the top number is referred to as the numerator, while the bottom number is referred to as the denominator.

Here,
As mentioned in the question, 3 divided by 14 in fraction form is given as,
a = 3, b  = 14
fraction = a/b
fraction = 3/14

Thus, the requried 3 divided by 14 in fraction form is 3/14.

Learn more about fractions here:
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Answer: That would be demonstrated as 3/14, or 3 over 14

Step-by-step explanation:

The numerator is the number being divided, and the denominator is the divider. So if I were to write 1/2, 1 is being divided by 2, which results with .50.  .50 is half of the whole number 1, make sense? :)

What is 99.49 rounded to the nearest whole number

Answers

99
because 0.49 is less than 0.5(0), we round it down. 

What is 37% of 293? Plz help me people this is for tomorrow

Answers

108.41 i pretty sure
108.41

on calculator... .37 of(multiply) 293

If s(x) =2-x^2and t(x) =3x which value is equivalent to (s·t)(-7) ​

Answers

the answer is 24 (x) -78

Answer:

987

Step-by-step explanation:

(s.t)(x) = s(x) × t(x) = 3x(2 - x²) = 6x - 3x³

To evaluate (s.t)(- 7) substitute x = - 7 into the product

(s.t)(- 7) = 6(- 7) - 3(- 7)³ = - 42 + 1029 = 987

-2x-3=-4x+3
What is X?

Answers


Well I don't know !
Let's get together and work it out.

You said that                              -2x - 3  =  -4x + 3

Add 4x to each side:                    2x - 3  =           3

Add  3  to each side:                   2x        =           6

Divide each side by  2 :                x        =           3 .
   
To simplify, add 4x to each side;
-2x-3+4x=-4x+3+4x
2x-3=3
Add 3 to each side;
2x-3+3=3+3 
2x=6
Divide each side by 2;
x=3
Hope this helps.

the perimeter of the rectangle is 86 inches. if the length is 3 inches longer that the width, find the width of a rectangle.

Answers

Answer:

Width = 20 inches

Step-by-step explanation:

Perimeter = 86 inches

Width = W

Length = 3 + W

Use the formula 2L + 2W = P to solve

Substitute new value for length (3 + w) into the formula

2(3 + W) + 2W = P

Change perimeter into the equation to 86 inches (Given)

2(3 + W) + 2W = 86

Multiply

6 + 2W + 2W = 86

Add the W's

6 + 4W = 86

Subtract 6 from both sides of the equation

4W = 80

Divide both sides of the equation by 4

W = 20 inches

Hope this helps :)

The length is 23in and the width is 20 inches