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AlexFokin [52]
2 years ago
6

If 1/2x = a= 2/3y and x + y= na, what is the value of n?

Mathematics
1 answer:
Fynjy0 [20]2 years ago
4 0

Answer:

Step-by-step explanation:

\frac{1}{2} x=a=\frac{2}{3} y\\\frac{1}{2}x=a\\x=2a \\\frac{2}{3} y=a\\y=\frac{3}{2} a\\x+y=2a+\frac{3}{2} a=\frac{4a+3a}{2} =\frac{7}{2} a=na\\n=\frac{7}{2}

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HELP PLEASE
kolezko [41]

Answer: 16 feet is the width and 25 is length

Step-by-step explanation:

x*(2x-7)=400

Word problem written in numerical form^^^^

Solve for x to get 16

length = 2(16)-7= 25

Check our work

16*25=400 yay

6 0
3 years ago
Kylie has lemon and watermelon in a ratio of 10:71. How many watermelon does she have if she has 20 lemons
kkurt [141]

Answer:

She will have 142 watermelons

Step-by-step explanation:

First let's put our ratio

10 : 71

Since our lemons are now 20 instead of 10 we will divide 20 by 10 to see how many time we multiplied it by.

20 \div 10

which equals 2

To find our water melon we will multiply it by 2

71 \times 2

which equals 142

She will have 142 watermelons

7 0
3 years ago
A student has gotten the following grades on his tests: 87, 95, 76, and 88. He wants an 85 or better overall. What is the minimu
Hoochie [10]

Answer:

He must get at least a 90 in order to recieve an 85 percent or higher

Step-by-step explanation:

4 0
3 years ago
PLEASE HELP LAST WUESTION!
Akimi4 [234]
The answer is 2 square root of 3
3 0
3 years ago
Does ANYONE Know How To Solve THIs…Brainliest Will be awarded!!!
emmainna [20.7K]

Answer:

  • w = 8
  • x = 8√2
  • y = 8√2
  • z = 16

Step-by-step explanation:

A 45-45-90 right triangle is isosceles. That means both legs are the same length, and its hypotenuse is √2 times the leg length. You can figure these facts using trigonometry or the Pythagorean theorem, or you can rely on your memory of them.

w = 8 . . . . . . . . . . . same as the leg length shown

x = y = 8√2 . . . . . hypotenuse of smaller triangle; both legs are the same

z = (8√2)√2 = 16 . . . . hypotenuse of larger triangle

3 0
2 years ago
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