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Triss [41]
3 years ago
13

Of 140 7th grade students 15% earn the presidential physical fitness award how many students earn the award

Mathematics
1 answer:
kiruha [24]3 years ago
8 0
21 students will receive the award.

Hope this helps.

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The Ford Motor Company have produced some excellent cars over the years.
GenaCL600 [577]

Answer:

Step-by-step explanation:true

4 0
3 years ago
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Si al numerador de una fraccion se añade 5, el valor de la fraccion es 2, y si al numerador se resta 2, al valor de la fraccion
konstantin123 [22]

Answer:

Respuesta.- La fracción es 9/7

Step-by-step explanation:

1) Llamando X e Y a la fracción, tenemos: X/Y

Si al numerador se le añade 5, es decir X+5, el valor de la fracción es 2, luego:

(X+5)/Y = 2

Y si al numerador se le resta 2, es decir X-2, el valor de la fracción es 1, luego:

(X-2)/Y = 1

Juntando amabas ecuaciones:

(X+5)/Y= 2

(X-2)/Y = 1

Despejando Y en ambas:

Y = (X+5)/2

Y = (X-2)..........(1)

Igualandolas:

(X+5)/2= (X-2)

De donde:

X+5 = 2X-4

X = 9

Y finalmente, sustituyendo el valor de X = 9 en la ecuaión (1), tendremos:

Y = (X-2)

Y = (9-2)

Y = 7

Respuesta.- La fracción es 9/7

6 0
4 years ago
Find the coordinates of the intersection of the diagnosis of the parallelograms (-2,-1) (1,3) (6,3) and (3,-1)
iren [92.7K]

Answer:

M = (2,1)

Step-by-step explanation:

Represent the diagonals as:

A =(-2,-1)

B =(1,3)

C =(6,3)

D = (3,-1)

Required

Determine the coordinate of the intersection

To do this, we simply calculate the midpoint of AC or BD.

For AC:

(x_1,y_1) = (-2,-1)

(x_2,y_2) = (6,3)

The midpoint is:

M = \frac{1}{2}\{(x_1+x_2),(y_1+y_2)\}

This gives:

M = \frac{1}{2}\{(-2+6),(-1+3)\}

M = \frac{1}{2}\{(4),(2)\}

M = (\frac{1}{2} * 4,\frac{1}{2} * 2)

M = (2,1)

For BD:

(x_1,y_1) = (1,3)

(x_2,y_2) = (3,-1)

The midpoint is:

M = \frac{1}{2}\{(x_1+x_2),(y_1+y_2)\}

This gives:

M = \frac{1}{2}\{(1+3),(3-1)\}

M = \frac{1}{2}\{(4),(2)\}

M = (\frac{1}{2} * 4,\frac{1}{2} * 2)

M = (2,1)

Notice the midpoints are the same:

M = (2,1)

<em>Hence, the coordinates of the intersection is (2,1)</em>

8 0
3 years ago
Is the correct answer to this problem one solution because 19x=-19?? Or am I wrong??
nadezda [96]
I think you are right so far what i've done comes out to your answer.
6 0
3 years ago
What is 49/30 as a decimal
stiv31 [10]
1.6333
   The 3 goes on forever so I recommend rounding up.
7 0
3 years ago
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