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elena-s [515]
3 years ago
9

I think of a number add 3 to it and multiply the result by 7.

Mathematics
2 answers:
kiruha [24]3 years ago
8 0

Answer:

x+3(7)=the answer

21=x

Step-by-step explanation:

ludmilkaskok [199]3 years ago
6 0
Let x be the number you choose. Then add 3 to this number.

You have x + 3.

Now multiply 7 to this.

So you should have 7(x+3) as your algebraic expression.

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Norma bought 1 3/4 yards of cotton fabric and 3 3/8 yards of fleece fabric.
aalyn [17]
1 3/4 + 3 3/8 
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1 3/4 becomes 1 6/8
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so the answer is 
C. 5 1 / 8 Yards
4 0
4 years ago
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A cube and a square pyramid were joined to form the composite solid.
Yakvenalex [24]
We know that
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the answer is the option
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5 0
3 years ago
Someone please tell me the answer and how you got it :(
Nimfa-mama [501]
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8 0
3 years ago
What is the simplified expression for -3(2x-y)+2y+2(x+y)
JulijaS [17]

Answer:

7y - 4x

Step-by-step explanation:

Given

- 3(2x - y) + 2y + 2(x + y) ← distribute parenthesis

= - 6x + 3y + 2y + 2x + 2y ← collect like terms

= 7y - 4x

7 0
3 years ago
Given: Measure of arc AB = measure of arc BC,
emmasim [6.3K]

9514 1404 393

Answer:

  100°

Step-by-step explanation:

The relevant relation for angle x is ...

  x = (AB +DE)/2

and for angle y, it is ...

  y =(AC -DE)/2

Using the second relation to write an expression for DE, we have ...

  DE = AC -2y

In the first equation, this lets us write ...

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  AC = (4/3)(x +y) = (4/3)(60° +15°) . . . . multiply by 2, substitute known values

  AC = 100°

6 0
3 years ago
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