MATHEMATICS HIGH SCHOOL

Sara says, "If you subtract 17 from my number and multiply the difference by - 6, the result is- 36." What is Sara's number?
Sara's number is

Answers

Answer 1
Answer: Sara’s number is 23


Answer 2
Answer: soiejidhhdihihdidhdjidjdidhidhdihdihiddd

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Peter uses unit cubes to build a figure in the shape of the letter x. What is the fewest unit cub es that peter can use to build the figure?

Answers

X letter is formed by two lines. The minimum amount of cubes that one side may have to look a line that cross other line is 3, but given that one cube is shared by the two lines you only need 5 cubes. So the answer is that the fewest unit cubes that Peter can use to build the figue in the shpe of X is 5 cubes.

All students in Ridgewood Junior High School either get their lunch in the school cafeteria or brought it from home on Tuesday. 20% of students brought their lunch. 49 students brought their lunch. How many students in total are in Ridgewood Junior High School?

Answers

Answer:

245

Step-by-step explanation:

49 = 20%

2.45 = 1%

245 = 100%

What is the quadratic equation 2x2+3x-20=0

Answers

The solution of quadratic equation are,

⇒ x = - 4

⇒ x = 5/2

We have to given that;

Quadratic equation is,

⇒ 2x² + 3x - 20 = 0

Now, We can simplify for the solution of equation as;

⇒ 2x² + 3x - 20 = 0

⇒ 2x² + 8x - 5x - 20 = 0

⇒ 2x (x + 4) - 5 (x + 4) = 0

⇒ (x + 4) (2x - 5) = 0

This gives,

⇒ x = - 4

⇒ 2x - 5 = 0

⇒ 2x = 5

⇒ x = 5/2

Hence, The solution of quadratic equation are,

⇒ x = - 4

⇒ x = 5/2
3x=20+2x2=24
x=24÷3=8

Est. Length: Est. Length: 0:2000Time Taken: 000:48Emalee Welsh: Attempt 1Questions What is the solution to the system of equations?0 of 5 questions savedUse the linear combination method.Page 1:1 2 3 4 5Legendsaved Response8)Unsaved ResponseInfo Item(-2, 12)Quiz Status(0,2)Quiz Started(-3, 17)

Answers

5x + y = 2
4x + y = 4

  5x + y = 2
-(4x + y = 4)

  5x + y = 2
-4x  - y  = -4
    x        = -2

x = -2 

5x + y = 2
5(-2) + y = 2
-10 + y = 2
y = 2 + 10
y = 12

x = - 2
4x + y = 4
4(-2) + y = 4
-8 + y = 4
y = 4 + 8
y = 12

x = -2 ; y = 12 ⇒ (-2,12)

Mrs. Eaton's class is participating in the "Box Tops for Education" campaign. On the first day, herclass collected 2 tops. On the third day, her class collected 8 tops. Let D represent each collection
day and N represent the number of tops collected on that day.
Based on the situation, John claims the number of tops collected can be modeled by an exponential
function. Riley disagrees and claims the number of tops can be modeled with a linear function. What
is the number of tops collected on the sixth day based on the exponential model? What is the
number of tops collected on the sixth day based on the linear model?

Answers

Given:

Day        Tops
1               2
2               ?
3               8

Exponential model:
d(x) = 2^x
d(6) = 2⁶ = 2 x 2 x 2 x 2 x 2 x 2 = 64 tops

LInear:
d(x) = 2 + 2x
d(6) = 2 + 2(6)
d(6) = 2 + 12
d(6) = 14 tops

Answer:

Exponential: 64

Linear: 17

Explanation:

I know this is right because I got it wrong and it showed me the answer.

jimmy has a 60 gallon limit if he already has 1/4 of it how much more does he need to fill up the entire 60 gallons of gas? why?

Answers

I think 60 - 25 = 35 because, 1/4 is equal to a quarter for example: 3/4 is 75. Think of money! Act like someone gives you 2/4’s of Quarters and how much do they give you? 50 cents.
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