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snow_tiger [21]
3 years ago
9

If a b equals 5 x + 2 y 80 equals 3x - 2y + BC equals 11 find X and Y

Mathematics
1 answer:
tatiyna3 years ago
7 0
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a cake using eggs and potatoes in the ratio of 2 to 5 if he uses sex as how many potatoes will he need
tamaranim1 [39]
When eggs = 2, then potatoes = 5

Eggs: 2
Potatoes: 5

When that is changed to 6 eggs, 2 needs to be multiplied by a number to get 6.

2 * what = 6      or      6/2=

you get the number 3. A fraction is equivalent to a ratio. So if you have 2*3=6 then you need to multiply 5*3 to get the amount of potatoes you need. the answer is 15 potatoes because 5*3=15.
4 0
3 years ago
Nine more than seven times a number, n, gives the same value as one more than the square of the number. Write an equation and so
Maru [420]

Answer:

7n + 9 = n² + 1

n = -1, 8

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

<u>Algebra I</u>

  • Factoring
  • Solving quadratics

Step-by-step explanation:

<u>Step 1: Set up Equation</u>

"Nine more" is + 9

"Seven times a number" is 7n

"One more" is + 1

"Square of the [same] number" is n²

7n + 9 = n² + 1

<u>Step 2: Solve for </u><em><u>n</u></em>

  1. Subtract 7n on both sides:                    9 = n² - 7n + 1
  2. Subtract 9 on both sides:                      0 = n² - 7n - 8
  3. Factor quadratic:                                    0 = (n - 8)(n + 1)
  4. Solve roots:                                            n = -1, 8
4 0
2 years ago
Please help!!!<br> A. quadratic<br> B. none<br> C. linear<br> D. exponential
larisa86 [58]
The answer to this question is B, because neither of suggestsions make sense
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2 years ago
A watermelon seed is 4mm long. How far would a line of 114 watermelon seeds stretch? Write your answer in meters.
Stella [2.4K]
Four hundred fifty six
8 0
2 years ago
Phil made a number line showing the multiples of 3/6...<br><br> What is the product 2 x 3/6?
Stolb23 [73]

the answer would be 6/6 because they want you to multiply 2 x 3/6

4 0
3 years ago
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