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blagie [28]
3 years ago
13

There are 32 students in the cafeteria, 12 girls and 20 boys. What is the ratio

Mathematics
2 answers:
tiny-mole [99]3 years ago
5 0

Answer:

A

Step-by-step explanation:

12/4=3

20/4=5

Goshia [24]3 years ago
4 0

Answer:

A.) 3:5

Step-by-step explanation:

║All you need to do is simply the ratio 12:20║

                                12:20                                

                                   ↓

                                 6:10

                                   ↓

                                  3:5

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The general equation for the geometric sequence -1, -2, -4, ... is a n = -1 · 2 n - 1 .
katrin2010 [14]

\text{First term,}~ a = -1\\\\\text{Common ratio,}~ r = 2\\\\\text{Nth term} = ar^{n-1}=-1\cdot 2^{n-1}\\

4 0
2 years ago
Write a function rule that represents the sentence.
rewona [7]
8 more than half of n is 8 + n/2. That is c.
So,
c = n/2 + 8
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6 0
3 years ago
Read 2 more answers
If f(x) = -x + 3x + 5 and g(x) = x2 + 2x, which graph shows the graph of (f +g)(x)?<br> -
Lyrx [107]

Answer:

This is so easy

Let me explain:

first lets find out (f+g)(x)=-x+3x+5+x^2+2x=

x^2+4x+5 this is the equation of a parabola because we have x^2

so only the first graph shows us a parabola

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6 0
3 years ago
4. El costo de impresión de cada página en una biblioteca es de 5 centavos si es en blanco y negro o
ira [324]

Answer:

Juan imprimió 7 páginas a color.

Step-by-step explanation:

Llamemos "b" a las copias en blanco y negro y "c" a las copias en color.

Juan imprimió 75 páginas. En forma simbólica es:

b + c = 75  

b = 75 - c   [1]

El costo de impresión de cada página en una biblioteca es de 5 centavos si es en blanco y negro o  50 centavos si es a color. En total pago $6.90. En forma simbólica es:

0.05b + 0.5c = 6.90   [2]

Si reemplazamos [1] en [2],

0.05(75-c) + 0.5c = 6.90

3.75 - 0.05c + 0.5c = 6.90

0.45c = 3.15

c = 7

Juan imprimió 7 páginas a color.

4 0
2 years ago
Can somebody please help answer this word problem using grass method? And showing how u get the answer thanks!!!
xxTIMURxx [149]

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Step-by-step explanation:

Fraction of total area mowed = (3/5) + (1/4) = 17/20

Therefore fraction of total area left = 1 - (17/20) = (20/20) - (17/20) = 3/20

8 0
1 year ago
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