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4 years ago

Simplify by combing like terms: 7/2x-8.62-3/2x-2.38

2 answers:

5 0

$\bf \cfrac{7}{2}x-8.62-\cfrac{3}{2}x-2.38\implies \cfrac{7}{2}x-\cfrac{3}{2}x-8.62-2.38\implies \cfrac{7x-3x}{2}-11
\\\\\\
\cfrac{4x}{2}-11\implies 2x-11$

Crazy boy [7]4 years ago

4 0

$\frac{7}{2}x-8.62-\frac{3}{2}x-2.38\\ \\ (\frac{7}{2}x-\frac{3}{2}x)+(-8.62-2.38)\\ \\ (\frac{4}{2}x)+(-11)\\ \\ 2x-11$

This should be your final answer.

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I need help ASAP please

natta225 [31]

Answer:

2j+j =21

Step-by-step explanation:

if j is Jas

Henry is 2 × Jas; which is 2j

j = Jas

2j = Henry

Henry + Jas = 21

input values for Jas and Henry

2j + j = 21

3 0

4 years ago

A) A rectangular prism 10 m 10 m 50 m Volume: Surface Area:

Rama09 [41]

Answer:

$\huge\boxed{V=5,000m^3}\\\boxed{SA=2,200m^2}$

Step-by-step explanation:

The formula of a volume of a rectangular prism $a\times b\times c$ :

$V=abc$

The formula of a surface area of a rectangular prism $a\times b\times c$ :

$SA=2(ab+ac+bc)$

We have

$a=10m;\ b=10m;\ c=50m$

Subtitute:

$V=(10)(10)(50)=5,000(m^3)\\\\SA=2\bigg((10)(10)+(10)(50)+(10)(50)\bigg)\\=2(100+500+500)=2(1100)=2,200(m^2)$

3 0

3 years ago

Mathew is watching a car race on TV. His favorite car covered 10 laps of 3.6 miles each in 18 minutes. What is average speed of

Karo-lina-s [1.5K]

In the given question, all the necessary information's are already provided. Using these information's it is easy to find the average speed of the car in miles per hour. It is given that the car covers 10 laps in 18 minutes and each lap is 3.6 miles in length.
Total distance covered by the car = (10 * 3.6) miles
   = 36 miles
Now we have to convert the time from minutes to hours. So
18 minutes = 18/60 hours
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Now we can easily calculate the average speed of the favorite car of Mathew.
Average Speed = 36 * (10/3) miles/hour
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ruslelena [56]

Answer:

Step-by-step explanation:

because 15 times 15 equals 225

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MA_775_DIABLO [31]

Answer:

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