2 years ago

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Mathematics

1 answer:

Goshia [24]2 years ago

5 0

Answer:

Stephanie brought the 20 chocolate for $50

Step-by-step explanation:

If she have $60 and only have $10 left that would me that the chocolate are $50

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Solutions for 2x^2+18x=20, worth a TON, please only 100% answers ! Thank u !

victus00 [196]

Answer:

The solution of the given quadratic equation is 1 and (-10).

Step-by-step explanation:

$2x^2+18x=20$

$x^2+9x=\frac{20}{2}$

$x^2+9x-10=0$

$ax^2+bx+c=0$

Solving equation by quadratic formula:

Here , a = 1,b = 9, c = (-10)

$D=b^2-4ac=(9)^2-4(1)(-10)=121$

$x=\frac{-b+{\sqrt{D}}}{2a}=\frac{(-9)+\sqrt{121}}{2(1)}=1$

$x=\frac{-b-{\sqrt{D}}}{2a}=\frac{(-9)-\sqrt{121}}{2(1)}=(-10)$

The solution of the given quadratic equation is 1 and (-10).

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2 years ago

The perimeter of a square picture frame is 24 in. Find the lengths of each side of the frame.

m_a_m_a [10]

Answer:

6 inches

Step-by-step explanation:

The perimeter formula for a square is P = 4*S

P =24

s = ?

24 = 4*S Divide both sides by 4

24/4 = 4S/4

S = 6

6 0

2 years ago

1 quarter 2 dimes 3 pennies how munch I have

vfiekz [6]

In total, you have 48 cents.
25+10+10+3= 48

Give 5 stars and brainliest answer if this helped please!<span>
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2 years ago

702 001 in expanded form

OLga [1]

700,000+2,000+1, should be your answer.

3 0

3 years ago

Read 2 more answers

There are 49 counters in a bag.

emmainna [20.7K]

Answer:

Explanation:

49-20=29 blue counters

There’s a 29/49 chance that the counter will be blue

4 0

3 years ago