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steposvetlana [31]
3 years ago
15

the average length of string a and string d is 10x cm . the average length of string b and string c is 8x cm . the average lengt

h of string b , c, d is 6x cm . find the length of string a is terms of x
Mathematics
1 answer:
klasskru [66]3 years ago
4 0

Answer:

a= 18x

Step-by-step explanation:

(a+d)/2 = 10x   (1)

(b +c)/2 = 8x  (2)

(b+c+d)/3 = 6x (3)

From the equation 2, we have (b+c)= 8x *2 = 16x

From the equation 3, we have d= 6x*3 - (b+c)= 18x- 16x = 2x

From the equation 1, we have a= 10x*2 -d= 20x - 2x= 18x

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In a manufacturing process, a metal- cutting machine cuts strips 1 2/5 inches wide. How many strips can be cut from a 48-inch pi
allsm [11]
You want to divide 48 by 1 2/5 which is 240/7
6 0
3 years ago
Write your answer in scientific notation. (3.2 x 10^-2) + (3.2 x 10^-4) + (2.8 x 10^-2)
mars1129 [50]
3.2 x 10^-2 + 3.2 x 10^-4 + 2.8 x 10^-2
= 3.2 + 2.8
= 6 x 10^-2 + 3.2 x 10^-4
Convert 3.2 into fraction which is 16/5
And express with a positive exponent using “a^-n = 1/a^n” therefore
= 6 x 10^-2 + 16/5 x 1/10^4
= 6 x 1/10^2 + 16/5 x 10^4
= 6 x 1/100 + 16/5 x 10,000
Reduce 6 and 100 with the GCF ‘2’
Then reduce 16 and 10,000 with 16
= 3 x 1/50 + 1/5 x 625
Multiply
= 3/50 + 1/3125
Then add
The answer is
= 377/6250
= 0.06032
3 0
3 years ago
I need to simplify<br><br>3 + 4 10 -8<br><br>and<br><br>(3+4)(10-8)
myrzilka [38]

Answer: 14

Step-by-step explanation: (3+8)*(10-8) = 14

5 0
2 years ago
Read 2 more answers
in the year 2006 there were 163,476 wildfires in a county. This was 12520 less than four times the number of wildfires in the ye
sesenic [268]

x= wildfires in 2003

163,476= 4x - 12,520

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4 0
3 years ago
13. Translate the following verbal phrase
Artyom0805 [142]

a) algebraic expression

\frac{3+x}{5}=10

b) Solve and find value of x

x=47

Step-by-step explanation:

We need to translate the following verbal phrase  into an algebraic equation

The quotient of three more than a  number and five is ten

Let the number be x

three more than a  number is written as: 3+x

Since quotient is 10 so,

The algebraic expression will be:

\frac{3+x}{5}=10

Now, <u>solving to find value of x</u>

\frac{3+x}{5}=10

Multiplying both sides by 5

\frac{3+x}{5}*5=10*5\\3+x=50

Now Subtract -3 from both sides

3+x-3=50-3\\x=47

So, value of x=47

Learn More:

  • You can find more info about translating verbal phrase  into an algebraic equation

                    brainly.com/question/1600376

                    brainly.com/question/1617787

  • For finding value of x, more info can be found at:

                     brainly.com/question/1616605

Keywords: verbal phrase, algebraic expression

#learnwithBrainly

8 0
3 years ago
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