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2.Write this statements using algebra Let n be the number

I think of a number and multiply if by 3

?

I think of a number and add 12

?

I think of a number subtract by 5 and then multiply by 2

?

5.Write the expression for the perimeter and simplify the expression. Width: 4x length:2x+5y


6. Jeanelle, Eashan and Rameen bought some bars of chocolate. Jeanelle bought three more than Eashan. Rameem bought as twice as many as Jeanelle. Together they bought 17 bars of chocolate. Form an equation and solve to find out how many bars of chocolate they each get.

2Write This Statements Using Algebra Let N Be The Number I Think Of A Number And Multiply If By 3 I Think Of A Number And Add 12 I Think Of A Number Subtract By class=

Sagot :

georgiedehaas22
1.
Number multiply by 3
N multiply by 3
Can you do that one
reinhard10158

Step-by-step explanation:

2.

n×3 = 3n

n + 12

(n - 5)×2

5.

the perimeter of a rectangle is the way to fully "walk" around it one time.

so, that means twice the length plus twice the width.

2×4x + 2×(2x + 5y) = 8x + 4x + 10y = 12x + 10y

6.

x = bars for Jeanelle

y = bars for Eashan

z = bars for Rameen

x + y + z = 17

x = y + 3

z = 2x

from the second equation we get

y = x - 3

and when we put the identities of the second and third equations into the first equation we get

x + (x - 3) + 2x = 17

x + x - 3 + 2x = 17

4x - 3 = 17

4x = 20

x = 5

y = x - 3 = 5 - 3 = 2

z = 2x = 2×5 = 10

Jeanelle got 5 bars.

Eashan got 2 bars.

Rameen got 10 bars.

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