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valentinak56 [21]
3 years ago
5

Josh is thinking of two numbers.

Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
3 0

Answer:

k^{2}  + 10k  -2= 0 is the equation above which represents the given situation.

Step-by-step explanation:

Sum of the numbers = -10

Product of the numbers = -2

Let one of the number = k

So, the other number = (-10 - k)

Also,their product is -2.

⇒k x ( -10 -k) =  -2

or, -10k - k^{2}  = -2

⇒  k^{2}  + 10k  -2= 0

The equation above represents the given situation appropriately.

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During a sale, 20-cent candy bars were sold at 3 for 50 cents. How much is saved on 9 bars?
Mazyrski [523]

Answer:

Step-by-step explanation:

$0.30

Step-by-step explanation:

1 bar of candy = $0.20

3 bars of candy = $0.50

To solve, multiply for both:

If you pay for each candy bar individually, they each cost $0.20. Multiply 9 with 0.20:

9 x 0.20 = $1.80

If you pay for the candy bars by 3's, they cost $0.50 each pack. Divide 9 with 3, then multiply by 0.50:

9/3 = 3

3 x 0.50 = $1.50

Subtract the total cost of the individual from the pack:

$1.80 - $1.50 = $0.30

. $0.30 is your answer.

8 0
4 years ago
Please help! Limits. Just confirm that an coverages to 2 as n-->infinity
Alexxandr [17]

Answer:

Limit is 2

Step-by-step explanation:

The last term approaches zero as n approaches infinity so the fuction approaches 2.

7 0
3 years ago
What is the factorization of the polynomial below?<br> 5x2 - 35x + 60
natita [175]

Answer:

5(x-3)(x-4)

Step-by-step explanation:

5x^2-35x+60

Start by factoring out a 5:

5(x^2-7x+12)

We need to find two integers that have a product of 12, and a sum of -7:

(-3)(-4)=12

-3-4=-7

We can split -7x into -3x and -4x

5(x^2-3x-4x+12)

Factor each half separately:

5[x(x-3)-4(x-3)]

Since x and -4 are both being multiplied by x-3, we can combine them:

5(x-3)(x-4)

7 0
3 years ago
This is Q2:5 Weekly Math Review
mezya [45]

Answer:

28.50+x or 28.50x

Step-by-step explanation:

6*4.75=28.50

6*x=6x or x

7 0
3 years ago
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Mamont248 [21]

Basically you want to find an equivalent fraction for 3/5 in the answer choices.

12/20 equals 3/5 because 3/5 x 4/4 (or 1) = 12/20

answer: 4

8 0
3 years ago
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