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ankoles [38]
3 years ago
7

Greatest common factor for 8x and 40

Mathematics
1 answer:
CaHeK987 [17]3 years ago
4 0
The GCF of 8x and 40 is 8

40 | 2
20 | 2
10 | 2
  5 | 5
  1 


8 | 2
4 | 2
2 | 2
1

40 = 2³ * 5
8 = 2³

We take only common factors with lowest exponent.

So 2³ = 8
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Jackie has 10 groups of pennies with 3 pennies in each group. Carlos has 5 groups of pennies with 100 pennies in each group. Who
Tcecarenko [31]
Answer=Carlos

If Jackie has 10 groups, with 3 in each groups, she has 30 total pennies.

10*3=30 pennies

If Carlos has 5 groups with 100 in each group, then Carlos has 500 pennies.

5*100=500 pennies

500 pennies is more than 30 pennies, so Carlos has more pennies
8 0
3 years ago
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Congruent triangles have the same perimeter and area.<br><br> False<br><br> True
Nady [450]

Answer:

true

Step-by-step explanation:

they are the same, but they are positioned in other ways and or places

3 0
3 years ago
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Which of the following statements best describes the "grouping method" of factoring trinomials?
Masja [62]

Answer:

  • <em>B. The grouping method of factoring trinomials involves rewriting the bx term into the factors that fit the particular trinomial, and factoring these four terms using grouping</em>

Explanation:

The description may be better explained by applying it to an example.

Example:

  • trinomial: x² - x - 30

  • the general form of a trinomial is a x² - bx - 30

  • comparing with x² - x - 30 the <em>bx term </em>is - x

  • then you must <em>rewrite the bx term, - x,</em> into two terms whose coefficients are factors of 30:

          Two numbers which add up - 1 and multipled are - 30. Those numbers are - 6 and + 5, because -6 + 5 = - 1 and (-6) × (+5) = -30.

           Hence, the two terms are -6x and 5x, and the expression rewritten is:

            x² - 6x + 5x - 30

  • <em>factor these four terms using grouping</em>:

            (x² - 6x) + (5x - 30)

            x(x - 6) + 5(x - 6)

            (x - 6) (x + 5)

Hence, the factored trinomial is (x - 6) (x + 5)

4 0
3 years ago
Solve the equation <br>r ÷ (-8) =5​
krok68 [10]

Answer:

r=-40

Step-by-step explanation:

r/-8=5

times -8 on both sides

5 times -8 =-40

r=-40

8 0
3 years ago
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Please help me with this problem.
aliya0001 [1]
It’s basically 100 multiplied by 2 so 200
3 0
3 years ago
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