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vagabundo [1.1K]
3 years ago
7

HELPPPP One number is 6 times a first number. A third number is 100 more than the first number. If the sum of the three numbers

is 660​, find the numbers.
Mathematics
1 answer:
Alex73 [517]3 years ago
8 0

Answer: 70, 420, 170

Step-by-step explanation:

x+6x+x+100 = 660

8x+100=660

8x=660-100

x=560/8=70

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Housing costs are what percentage of monthly net income? Use the budget sheet to calculate. Round your answer to the nearest who
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The answer is 2 or 2.5.
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4 years ago
Find the prime factorization of 2181
nasty-shy [4]
Prime numbers are numbers that can be divided without a remainder. So 2181 is divisible by 3 and 727 and there is no remainder.
3 0
3 years ago
Jack is 3 times as old as lacy. 3 years ago the sum of there ages was 14. How old are they now?
Elan Coil [88]

Answer:

lacy = 8 jack= 24

Step-by-step explanation:

let x be lacys age

3x - 3 + x-3 = 14

3x+x -3 = 14 + 3 = 17

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x = 20/4 = 5

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3 0
3 years ago
Factor the expression over the complex numbers. x^2+36
denis-greek [22]
Note that
a² - b² = (a+b)(a-b)
i² = -1 by definition.

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Consider the expression
x² - (6i)² = x² - (6²)(i²) = x² - 36i² = x² + 36

Because x² - (6i)² = (x + 6i)(x - 6i)
Therefore
x² + 36 = (x + 6i)(x - 6i)

Answer: (x + 6i)(x - 6i)

5 0
4 years ago
To make banana bread, Colin uses 3/4 of a cup of brown for every 2 cups of flour. How much brown sugar should Colin use to make
Lelechka [254]

\frac{3}{8} cups of brown sugar needed for only 1 cup of flour

<em><u>Solution:</u></em>

To make banana bread, Colin uses \frac{3}{4} of a cup of brown for every 2 cups of flour

To find: Amount of brown sugar should Colin use to make a small batch with only 1 cup of flour

Let "x" be the amount of brown sugar needed for only 1 cup of flour

From given information,

\text{ 2 cups of flour } = \frac{3}{4} \text{ cup of brown sugar }

\text{1 cup of flour } = \text{ x cup of brown sugar }

This forms a proportion and we can solve the sum by cross multiplying

1 \times \frac{3}{4} = 2 \times x\\\\x = \frac{3}{8}

Thus \frac{3}{8} cups of brown sugar needed for only 1 cup of flour

4 0
3 years ago
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