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Kisachek [45]
3 years ago
7

Which expression is equivalent to −19y+13 ?

Mathematics
2 answers:
Vikki [24]3 years ago
4 0
The first thing you should do in this case is to write the expression correctly:
 - (1/9) y + (1/3)
 Now, we take out common factor (1/9) obtaining:
 1/9 (-y + 3)
 Let's check:
 1/9 (-y + 3)
 -1/9y + 3/9
 -1/9y + 1/3
 OK
  Answer: 
 An expression equivalent is: 
 1/9 (-y + 3)

Sedaia [141]3 years ago
3 0

Answer:

1/9 (-y + 3)

Step-by-step explanation:

I did the test

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It’s the A question I need will give brainiest
erma4kov [3.2K]

Answer: See explanation

Step-by-step explanation:

Area of one rectangle: l × w

7 × 4 = 28

28 in²

Total area: 28 × 4 = 112

112 in²

4 0
3 years ago
A marching band is performing in a rectangular arrangement, with a width of $w$ people. The length consists of seven less people
Norma-Jean [14]

Answer:

There are 120 people in the marching band.

Step-by-step explanation:

Let no. of people in the band be x.

In the first rectangular arrangement,

Width of rectangle (w_{1}) = w people.

Length of rectangle (l_{1}) = (w-7) people

Therefore,

no. of people in the band(x) = Area of the rectangle = Product of width and Length

x = width \times length

x = w\times (w-7)  (equation 1);

In the second rectangular arrangement,

Width of rectangle (w_{2}) = (w-3) people.

Length of rectangle (l_{2}) = (w-5) people

Therefore,

no. of people in the band(x) = Area of the rectangle = Product of width and Length

x = width \times length

x = (w-3)\times(w-5)  (equation 2);

Therefore, from equation 1 and equation 2 , we get,

w\times(w-7)=(w-3)\times(w-5)

w^{2}-7w=w^{2} - 8w + 15

Therefore,

w = 15  (equation 3)

From equation 1 and equation 3, we get

x = 15\times(15-7)

x = 120.

Therefore,

no. of people in the marching band = 120 people

8 0
3 years ago
If I walk outside with my umbrella, then it will rain. Decide whether the given conditional statement is true or false. If it is
sergiy2304 [10]

Answer:

False

Step-by-step explanation:

Umbrellas could be used for different reasons besides rain.

4 0
3 years ago
What is the factor in this equation? 3+(4r + y)
zlopas [31]
The factors are 3 and (4r+y)

Hope this helps :)
8 0
3 years ago
I need help please someone please!
Svetach [21]

Answer:it the 3rd one

Step-by-step explanation:

I done this

8 0
3 years ago
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