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3 years ago

How do you simplify the expression 3g-a+11g-21

2 answers:

8 0

Add 3g3⁢g and 11g11⁢g to get 14g14⁢g.−a+14g−21

ladessa [460]3 years ago

6 0

I hope this helps you 3g+11g-a-22 14g-a-21

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Brrunno [24]

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3 years ago

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If the width of something is 5m and the perimeter is 22m, what is the length and area

Nadusha1986 [10]

I assume that this 'something' has a rectangular shape. If its width is 5m, than the length of two sides is 2 * 5 = 10m. Now if the perimeter is 22 square meters, then the lenght of another two sides is 12 / 2 = 6.

12 because 22 (the perimeter) - 10 (lenght of the 2 sides) = 12 (length of another 2 sides).

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3 years ago

Starting at home, Luis traveled uphill to the gift store for 50 minutes at just 6 mph. He then traveled back home along the same

Georgia [21]

Answer:

Therefore his average speed for the entire trip is 8 mph.

Step-by-step explanation:

Given, In 50 minutes Luis traveled uphill to gift store at 6 mph.

6 mph means in 1 h= 60 minutes Luis can covered 6 mile.

In 1 minutes Luis can covered $\frac{6}{60}$ mile.

In 50 minutes Luis can covered $\frac{6\times 50}{60}$ mile

= 5 mile

Again when he come back at home, the speed was 12 mph.

12 mph means in 1 h= 60 minutes Luis can covered 12 mile.

Therefore he traveled 12 mile in 60 minutes

He traveled 1 mile in $\frac{60}{12}$ minutes.

He traveled 5 mile in $\frac{60\times 5}{12}$ minutes

= 25 minutes.

Total distance for the entire trip is =(5+5) mile=10 mile

Total time for the entire trip is = (50+25) minutes = 75 minutes

$\textrm{Average speed}=\frac{\textrm{Total distance}}{\Textrm {total time}}$

$=\frac{10}{75}$ m/min

$=\frac{10\times 60}{75}$ mph

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Therefore his average speed for the entire trip is 8 mph.

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3 years ago

What is the length of BE given that BD = 18 and figure ABCD is a parallelogram?

maria [59]

Answer:

Step-by-step explanation:

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3 years ago

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A book is in the shape of a right rectangular prism. It measures 812 inches tall, 7 inches wide, and 212 inches thick.

ki77a [65]

We know that
the Volume of a prism=a*b*c
a----> tall--------> 8 1/2 in=8.5 in
b-----> wide-----> 7 in
c-----> thick-----> 2 1/2 in=2.5 in
therefore
V=8.5*7*2.5=148.75 in³------------equal a 148 3/4 in³

the answer is the option c 148 3/4 in³

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3 years ago