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kow [346]
3 years ago
13

Explain the error. To find her total earnings for those two weeks, Nadia writes 7.5 x 18.5 + 20 =$158.75. Show the correct solut

ion.
Mathematics
1 answer:
noname [10]3 years ago
3 0

Answer:

it should be 20

Step-by-step explanation:


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9. The sum of two numbers is 25 and whose product is 156. find the two numbers.​
lord [1]

Answer:

x = 12

y = 13

Step-by-step explanation:

Let's assume the two numbers as x and y.

The sum of the two numbers is 25

So,

  • x+y = 25
  • y = 25 - x

The product of the two numbers is 156

  • xy = 156
  • x(25 - x) = 156
  • 25x - x² = 156
  • x² - 25x + 156 = 0
  • x² - 13x - 12x - 156 = 0
  • (x - 12) • (x - 13) = 0
  • x - 13 = 0
  • x = 13
  • x - 12 = 0
  • x = 12

Hence, the two numbers are 13 and 12.

4 0
3 years ago
Read 2 more answers
Michael bought a shirt with 2/5 of his money. Then he bought a jacket that cost $5 more than the shirt. He spent $105 altogether
TEA [102]

Answer:

vb hyjv bnhyn g

Step-by-step explanation:

8 0
3 years ago
What is 2 divided by 1386
Jet001 [13]
Lol its <span>0.00144300144</span>
5 0
3 years ago
I have litre of bottle of cola i drink 650 ml how much is left
TiliK225 [7]

There are 1000 ml in one liter if you drank 650 ml then:

1000 - 650 = 350

350 ml are left

:)))

7 0
3 years ago
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52.) Five times a number is 45
Rom4ik [11]
52).  5x=45    Divide each side of the equation by 5.

53).  -3x = 12   Divide each side by -3.

54).  x/4 = 10    Multiply each side by  4 .
 
55).  x/3 = -8    Multiply each side by  3 .

1).  x -10 = 12 .     Add  10  to each side.

3).  x + 8 = 16      Subtract  8  from each side.   

5).  5 + x = 6        Subtract  5  from each side.

7).  x - 4 = 9         Add  4  to each side.

Thank you for the 5 points.    The crust and warm water are delicious.
4 0
3 years ago
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