Giving brainliest !!! easy

Mathematics

1 answer:

ale4655 [162]3 years ago

4 0

Answer:

1664

Step-by-step explanation:

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Division need help help me know what 12 ÷ 4 =

notsponge [240]

12/4 is 3, and you can check this because 3 x 4 is 12.

3 0

4 years ago

Read 2 more answers

An airplane has a total of 414 packets of crackers, pretzels, and peanuts available for passengers.

zhenek [66]

There is no question in Part A, but i do what i can.

Part A.
We know that:

n - number of packets of crackers
p - number of packets of pretzels

p = 2n+9

s - number of packets of peanuts

s = 3p = 3(2n+9) = 6n+27

So:

$n+p+s=414\\\\n+(2n+9)+(6n+27)=414\\\\9n+36=414\quad|-36\\\\9n=378\quad|:9\\\\\boxed{n=42}\\\\\\
p=2n+9=2\cdot42+9=\boxed{93}\\\\s=6n+27=6\cdot42+27=\boxed{279}$

There are 42 packets of crackers, 93 packets of pretzels and 279 packets of peanuts.

Part B.

x - number of rows with exactly 2 passengers
y - number of rows with exactly 3 passengers

and:

$\boxed{\begin{cases}x+y=48\\2x+3y=132\end{cases}}\\\\\\
\begin{cases}x+y=48\quad|\cdot2\\2x+3y=132\end{cases}\\\\\\
\begin{cases}2x+2y=96\\2x+3y=132\end{cases}\\\\--------(-)\\\\2x-2x+2y-3y=96-132\\\\-y=-36\\\\\boxed{y=36}\\\\\\x+y=48\\\\x+36=48\\\\x=48-36\\\\\boxed{x=12}$

There are 12 rows with exactly 2 passengers and 36 rows with exactly 3 passengers.

3 0

4 years ago

During a snowstorm, snow accumulated at a constant rate of 8/3 centimeters per hour. if the snow continued to fall at that rate

ikadub [295]

Answer:

16 centimeters

Step-by-step explanation:

The constant rate is 8/3 (cm/hr)

8/3 = 2.67 (rounded to hundredths place)

Multiply the dividend by the time, which is 6 hours

2.67 x 6 = 16.02

Therefore, 16.02 (or 16 depending on how you rounded) centimeters accumulated on the ground.