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romanna [79]
4 years ago
8

The amount of rainfall each month over the past four years is shown below

Mathematics
1 answer:
Angelina_Jolie [31]4 years ago
4 0
Unknown answer, not enough info.
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the winner of an election for class president won by a total of 3 to 2, having received 324 votes. how many votes did the other
Bumek [7]
The other candidate got 108 votes
4 0
3 years ago
Which of the following verifies that AABC is similar to ADEF?
nasty-shy [4]

Answer:

B. SAS Theorem

Step-by-step explanation:

SAS means that there are 2 corresponding sides with an angle in between. This condition is satisfied in this case because AC corresponds to DF (18/2 = 9), angle c and angle f are congruent, and BC corresponds to EF

6 0
3 years ago
Read 2 more answers
La edad de Ericka es el tripl de la edad de Liliana y hace 9 años la suma de sus edades era 22. ¿Cuantos años tiene actualmente
Gnom [1K]

Answer:

Liliana tiene 10 años.

Step-by-step explanation:

Definamos las variables:

E = edad de Ericka

L = edad de Liliana.

Primero sabemos que la edad de Ericka es el triple de la edad de Liliana, entonces:

E = 3*L

Tambien sabemos que hace 9 años la suma de sus edades era 22

Hace nueve años la edad de Ericka era E - 9

Y hace nueve años la edad de Liliana era L - 9

Entonces tenemos:

(E - 9) + (L - 9) = 22

Así, tenemos un sistema de dos ecuaciones:

E = 3*L

(E - 9) + (L - 9) = 22

Queremos conocer la edad actual de Liliana.

Para ello tenemos que despejar E en una de las ecuaciones.

Podemos ver que en la primer ecaución E ya está aislada, entonces nos saltamos ese paso.

Ahora, reemplazamos E en la otra ecuación:

(E - 9) + (L - 9) = 22

(3*L - 9) + (L - 9) = 22

Ahora podemos resolver esto para L

3*L - 9 + L - 9 = 22

4*L - 18 = 22

4*L = 22 + 18

4*L = 40

L = 40/4 = 10

L = 10

Liliana tiene 10 años.

3 0
3 years ago
Out of 300 students at rsm summer camp 180 are boys what fraction of all students are boys
Julli [10]

Answer: 3/5 are boys

Step-by-step explanation:

Divide 180 by 300 and you get 0.6 which is 6/10 now reduce it by dividing 2 on each then you get 3/5

4 0
3 years ago
Read 2 more answers
Soren solves the quadratic equation x^2 + 8x – 9 = 0 using the quadratic formula. In which step did Soren make an error?
pochemuha

Answer:

step 3 didn't divide by 2

Step-by-step explanation:

in step

\frac{ - 8 +  \sqrt{100} }{2}  =  \frac{ - 8 + 10}{2}  = 1 \\  \frac{ - 8 -  \sqrt{100} }{2}  =  \frac{ - 8 - 10}{2}  =  - 9

8 0
3 years ago
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