. Astronauts traveling to the International Space Station have to be very careful about weight (it takes about 9 lbs of rocket fuel to send 1 lb of stuff to the station). Each astronaut can bring approximately 11 lbs of personal items (mementos and clothes) with them into space. Each memento weighs about 0.1 lb, and each item of clothing weighs about 0.5 lbs. If an astronaut wanted to bring 30 items with them, how many mementos and pieces of clothing would they bring?(use system of equations please)

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

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step-by-step explanation:

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i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.