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sp2606 [1]
3 years ago
14

2xy – 4 – xy – y – 2 + y + 5 simplify please

Mathematics
2 answers:
DanielleElmas [232]3 years ago
5 0

Answer: 1xy+1

Step-by-step explanation:

dem82 [27]3 years ago
5 0
Xy-1 I think it’s correct
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if gabby wants to make a regular octagon with a side length of 20 inches of water , how much wire does she need?
EleoNora [17]

Answer:

160 inches

Step-by-step explanation:

An octagon has 8 sides;

20*8=160

4 0
3 years ago
the pillars of a temple are cylindrically shaped.of each pillar has a circular base of radius 280 cm and height of 10 m how much
Damm [24]

Answer:

3446.464 m³

Step-by-step explanation:

280 cm=2.8 m

S=πr²×h×14

  =3.14×2.8²×10×14

  =3446.464 m³

5 0
3 years ago
Gina is a certain age (g). Gina's older sister is twice Gina's age. Gina's brother is half Gina's age. The sum of their ages is
aliina [53]

Answer:

Gina is 12 years old

Step-by-step explanation:

First,  we will have to write these statements mathematically and then solve.

Let Gina's age be x, let Gina's brother's age be y and let Gina's sister's age be z.

The second statement"Gina's older sister is twice Gina's age" can be mathematically written as: z =2 x ---------------------------(1)

The next statement "Gina's brother is half Gina's age" can be mathematically written as y = \frac{x}{2} ---------------------------------------(2)

Then the next statement "the sum of their ages is 42" can be mathematically written as: x + y + z = 42 ----------------------------(3)

We can now proceed to solve;

Substitute equation (1) and equation(2) into equation (3)

x + y + z = 42

x +  \frac{x}{2} + 2x = 42

Multiply through by 2

2x + x + 4x = 84

7x = 84

Divide both-side of the equation by 7

\frac{7x}{7} = \frac{84}{7}

x = 12

Therefore, Gina is 12 years old

7 0
3 years ago
In which set are all fractions equivalent to - 2/3?
Hitman42 [59]
I would love to help you but you haven’t given the sets
3 0
3 years ago
Read 2 more answers
Please help me find slope !
mars1129 [50]

y=mx+b

m is your slope

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3 years ago
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