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valentinak56 [21]
3 years ago
13

the diagram shows a triangle 3x-1,3x and 4x-1. The perimeter of the triangle is 70 cm. The area of the triangle is a^2 cm. What

is the value of a?
Mathematics
1 answer:
pychu [463]3 years ago
8 0

Answer:

4x

Step-by-step explanation:

45

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If ( 43.65 ) ( 8.79 ) / x = ( 0.4365 ) ( 87.9 ) then value of x is:
strojnjashka [21]

Answer:

  (d)  10

Step-by-step explanation:

Multiply by x and divide by its coefficient:

  (43.65)(8.79) = (0.4365)(87.9)x

  (43.65)(8.79)/((0.4365)(87.9)) = x

At this point, any calculator can give you the answer. It is, perhaps, more satisfying to work out the answer without a calculator.

  x = (43.65)/(0.4365) × (8.79)/(87.9)

In the first quotient, the numerator is 100 times the denominator; in the second, the denominator is 10 times the numerator.

  x = (100) × (1/10) = 100/10

  x = 10

_____

Moving the decimal point to the right 1 place multiplies the numerical value by 10.

5 0
3 years ago
Identify the percent of change as an increase or a decrease.<br><br> 1/4 to 1/2
rusak2 [61]
Increase.

1/4 can be translated to 25%

1/2 can be translated to 50%

25% to 50% is an increase.
4 0
3 years ago
Read 2 more answers
Pls answer this question
Pavlova-9 [17]

Answer:

Question 37:

B) 21

Step-by-step explanation:

How I found the radius:

radius= 132/ 2 x π  

r=132 / 6.2831853071796

r=21.0084525

Divide 132 by 6.2831853071796

π = 3.1415926535898

Note: Hope this Helps!

<em>-kiniwih426</em>

5 0
3 years ago
The price of a television was reduced from $175 to $150. By what percentage was the price of the television reduced?
Aloiza [94]

Answer:

The answer would have to be 16.6666666666667.  This can be rounded up or keep the same.

5 0
3 years ago
Help please I'm so confused ​
Sergeu [11.5K]

Answer:

169.12

Step-by-step explanation:

I hope this is correct. First, you want to divide the semi-circle and the rectangle. To find the area of the rectangle, you do 16 x 9 to get 144. To find the area of the semi-circle, you do 3.14x16/2 to get 25.12. Then you want to add 144 and 25.12 to get 169.12. I hope this helps

5 0
3 years ago
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