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NeX [460]
3 years ago
7

20(20-x)=300 what is x

Mathematics
1 answer:
neonofarm [45]3 years ago
5 0

Answer:

x = 5

Step-by-step explanation:

20(20-x)=300

1. Divide both sides by 20.

20(20-x)/20 = 300/20

2. Simplify.

20-x=15

3. Subtract 20 from both sides.

20-x-29=15-20

4. Simplify.

-x=-5

5. Divide both sides by -1.

-x/-1 = -5/-1

6. Simplify.

x=5

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Is 20 a prime or composite number.​
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Answer: It is a composite number since it has more factors than just itself and 1.

Step-by-step explanation:

1x20=20

2x10=20

4x5=20

6 0
3 years ago
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Penny and Kenny have the same number of football cards.
Pachacha [2.7K]
Hello,
Penny==>a*10 (a is an integer)
Kenny==>b*18 (b is an integer)

a*10=b*18==>a=9*b/5 ==>b=5+n*5
a=9*(5+5*n)/5=9*(1+n)=9+9n
If n=0 then a=9 and b=5 :Number od cards: 9*10=10, 5*18=90
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3 years ago
Find the 7th term of a geometric sequence with t1=5 and r = -2.
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maks197457 [2]

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X-intercepts: (-1, 0) , (3, 0)

Y-intercept: (0, -3)

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This function will create a parabola that opens upwards. I’m not entirely sure what I was supposed to answer. Hopefully this covered it. I’ll attach an image of the parabola in case I missed anything.

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Converting the mixed number to a decimal, the correct comparison of the numbers is given as follows:

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<h3>What is a mixed number?</h3>

A mixed number is represented by an integer part and a fractional part, as follows:

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In which:

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In this problem, the numbers are given as follows:

\sqrt{180}, \sqrt{100 \frac{2}{8}}

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More can be learned about mixed numbers at brainly.com/question/1746829

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