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4 years ago

MAFS.7.NS.1.3-FSA Practice

Mathematics

1 answer:

solmaris [256]4 years ago

8 0

Answer:

$-54\ \frac{ft}{sec}$

Step-by-step explanation:

we know that

To find out the mean change of altitude, divide the total change by the amount of time it takes

$-\frac{378}{7}=-54\ \frac{ft}{sec}$ ---> is negative because the airplane is descending

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Five out of 10 marbles in a bag are red. What percentage of the marbles are not red?

Jlenok [28]

Answer:

50%

Step-by-step explanation:

Five out of 10 is 50%

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4 years ago

Read 2 more answers

The phone company Ringular has a monthly cellular plan where a customer pays a flat monthly fee and then a certain amount of mon

ivanzaharov [21]

Answer:

The slope is $0.35/min and it gives the cost per minute of the phone used.

Step-by-step explanation:

We can model this situation with a linear equation of the form

$y =mx+b$

where $y$ is monthly cost, $x$ is the number of minutes, $b$ is the flat monthly fee, and $m$ is the slope of the equation, or in our case, the amount of money charged per minute.

The slope $m$ is

$m= \dfrac{\$372.5-\$131}{990min-300min}$

$m = \$0.35/min$ ,

in other words, the phone company charges $0.5 per minute.

With the slope in hand, the linear equation becomes

$y =0.35x+b$ ,

and we can find the monthly fee $b$ from that fact that for 300 minutes the cost is $131:

$\$131 = 0.35(300min) +b$

$b = \%26$ .

Therefore,

$y = 0.35x+26$

where the slope if the equation give the cost per minute of the phone used.

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3 years ago

If a rope 36 feet long is cut into two pieces in such a way that one piece is twice as long as the other piece, how long must th

SVEN [57.7K]

24 feet long :)
All I did was I divided the 36 into 3 equal parts of 12, then doubled the 12 to make that longer piece 24 feet. This 24 foot piece would be twice as long as the other leftover 12 foot piece since 12x2=24

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3 years ago

What's the answer to this??

Evgen [1.6K]

The variable "x" equals 7

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3 years ago

i need help with my math :( im horrable with it i cant do divideing fractions nor multiply and i dont know most of my multiples

vladimir1956 [14]

Step-by-step explanation:

To multiply the fractions, like

$\frac{1}{4} \times \frac{1}{9}$

Multiply the top,

then multiply the bottom.

$\frac{1}{4} \times \frac{1}{9} = \frac{1 \times 1}{4 \times 9} = \frac{1}{36}$

Try to use a calculator if you aren't arithmetic heavy, but I suggest you to try to remember them because they are going to be helpful for courses like Algebra, Calculus, Statistics, etc.

To divide fractions, like

$\frac{ \frac{1}{5} }{ \frac{1}{8} }$