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hodyreva [135]
3 years ago
14

Zair has 48 marbles in his pocket. He has 3 more blues than the

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
6 0

Answer:

# yellow = 20

# blue = 23

# red = 5

Step-by-step explanation:

let 'r' = # red marbles

let '4r' = # yellow marbles

let '3+4r' = # blue marbles

r + 4r + 3 + 4r = 48

9r + 3 = 48

9r = 45

r = 5

red = 5

yellow = 4(5) = 20

blue = 3+4(5) = 23

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Answer:

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Step-by-step explanation:

5 − 10x − 3x² = 0

Write in standard form:

-3x² − 10x + 5 = 0

Solve with quadratic formula:

x = [ -b ± √(b² − 4ac) ] / 2a

x = [ -(-10) ± √((-10)² − 4(-3)(5)) ] / 2(-3)

x = [ 10 ± √(100 + 60) ] / -6

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Answer:

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Step-by-step explanation:

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In parallelogram LMNP if PQ=21 find QM.
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Step-by-step explanation:

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3 years ago
Flor tiene una papelería y vende los lápices en $12 y los bolígrafos en $20. ¿Qué expresión algebraica permite saber cuánto debe
stiks02 [169]

Answer:

c=120x+200y

Step-by-step explanation:

La expresión algebraica debería indicar que el valor total que debe cobrar Flor es igual a 10 que representa el número de bolsas por el resultado de la suma del precio de cada item por la cantidad, lo que se puede expresar de la siguiente forma:

c=10(12x+20y)

c=120x+200y

De acuerdo a esto, la expresión algebraica que permite saber cuánto debe cobrar Flor por 10 bolsas que contengan x cantidad de lápices y "y" cantidad de bolígrafos es c=120x+200y.

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3 years ago
There are 136 boys and 188 girls at Wood Middle School. There are 316 boys and 208 girls at Parker Middle School. What is the ra
Juli2301 [7.4K]

Answer:

Ratio of Wood MS to Parker MS  = 81 : 131

Step-by-step explanation:

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3 0
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