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Rufina [12.5K]
3 years ago
14

Takyra has n nail polish colors. Samantha has 4 more than twice the number of nail polish colors. In terms of n,

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
8 0

Answer:   2n+4

Step-by-step explanation:

"(4 more than) <u>twice the number</u>"  is 2x

"<u>4 more</u> (than twice the number)"    is +4

Put them together:  2n + 4

You might be interested in
What expression is equivalent to 2(x+4)
Arte-miy333 [17]

Answer:

2x + 8

Step-by-step explanation:

solve by using the distributive property

2(x + 4) = (2)(x) + (2)(4)

2x + 8

5 0
3 years ago
Elleanna is planning is join a DVD club and is investigating the options for membership.Option 1 is a $20 memership fee and $1.2
In-s [12.5K]
She would have to rent 2 movies.

1.25 x 2 = 2.50
7 0
3 years ago
Xue Ying had 143 more sweets than Joanne.After Joanne gave away 22 sweets, Xue Ying had 6 times as many sweets as Joanne. How ma
andreyandreev [35.5K]

Answer:

In the end Joanne had 55 sweets.

Step-by-step explanation:

Let the number of sweets that Xue Ying had be y and let the number of sweets Joanne had be x.

It is given that Xue Ying had 143 more sweets than Joanne. We can write this information as an equation.

               y = x + 143.

It is also given that Joanne gave away 22 of her sweets and after that Xue Ying had 6 times as many more sweets. We can write this as an equation.

             y = 6(x - 22) = 6x - 132.

Therefore we can equate the two equations and solve for x.

                 x + 143  = 6x  - 132

                5x  = 275

        ∴       x =  \frac{275}{5}  = 55 sweets.

Therefore in the end Joanne had 55 sweets.                        

4 0
3 years ago
What is the equation of the line that has a slope of 2 and passes through the point (2,9)?
jenyasd209 [6]

Answer:

D

Step-by-step explanation:

use the formula for point slope form, since all of your choices are in that form : y-y1=m(x-x1) (m is the slope)

we're given that m=2 and the point is (2,9)

Substitute into the equation

y-9=2(x-2)

That means that the answer is D

Hope this helps!

8 0
3 years ago
Write problem out please
Gekata [30.6K]

Answer:

21.25 m

Step-by-step explanation:

y = Ax² + Bx + C

Set the origin at the middle of the span so that the point (0, 0) is on the curve

0 = A(0)² + B(0) + C  means C = 0

The points (200, 85) and (-200, 85) are on the curve

85 = A(200)² + B(200)

85 = A(-200)² + B(-200)

85 - 40000A - B(200) = 85 - 40000A + B(200)

                      - B(200) = B(200)

                         -400B = 0

                                 B = 0

85 = A(200)²

A = 85/40000

y = 85x²/40000

y = 85(100)²/40000 = 21.25 m

5 0
3 years ago
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