Answer:

Step-by-step explanation:
we know that
She rides for 11.2 kilometers at a speed of 7 kilometers per hour
Using proportion
Find how many hours does she ride

Answer: 8%
Step-by-step explanation:
the answer is 7.5% but you said its a whole number so i guess its 8%
Answer:
0.8 is an ineteger of two values so YES it is a RATIONAL number
Step-by-step explanation:
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Answer:
For the first one the answer is 60 idk about the 2 one tho
Step-by-step explanation:
Answer:
3 unidades de comprimento
Step-by-step explanation:
O perímetro é definido como a soma de todos os lados.
O perímetro de um quadrado de lado 2x é dado por:

O perímetro de um retângulo de comprimento x e largura x² é dado por:

Para que ambos os perímetros sejam iguais:

O valor de x é igual a 3 unidades de comprimento.