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Zielflug [23.3K]
2 years ago
5

1. If y varies directly as x and y=13 when x=23.4, find y when x=9.

Mathematics
1 answer:
pychu [463]2 years ago
8 0

Answer:

1. y = 5

2. y = 15

Step-by-step explanation:

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[-4 + n - 2n x 2n] + [ 2 - 5n - 6n x 6n]​
Kamila [148]

Answer:

- 2 - 4n - 8n²  

Step-by-step explanation:

thats ur anser

3 0
3 years ago
Jessica has thirty-one books in her library. She bought several books at a
Shtirlitz [24]

Answer: She bought 68 books.

Step-by-step explanation:

Subtract 31 from 99 to find the difference! The difference tells us how many books she bought at the yard sale.

8 0
2 years ago
If (x + k) is a factor of f(x), which of the following must be true?
KIM [24]

Answer:

<h3>f(-k)=0</h3>

Step-by-step explanation:

(x + k) is a factor of f(x)

x+k=0 => <u>x= -k;</u>    <em>-k is a root of f(x)</em>

=> f(-k)=0

6 0
2 years ago
Read 2 more answers
Marsha Green makes $9.19 per hour. Find her social security tax at the rate of 7.65% for a 40-hour work week.
ira [324]

Answer:

$28.12

Step-by-step explanation:

$9.19 x 40 = $367.60 x 7.65% = $28.12

5 0
3 years ago
Arrange these fractions in ascending order: 3/4, 2/5, 3/8, 7/10, 11/20, 23/40. Please help it’s due tomorrow and I’m big dumb
disa [49]

Answer:

3/8, 2/5, 11/20, 23/40, 7/10, 3/4

Step-by-step explanation:

Just change them all to the same denominator and you're good. Put all of the fractions' denominators to 40 as that's the least common denominator. 3/4 turns into 30/40. 2/5 turns into 16/40. 3/8 turns into 15/40. 7/10 turns into 28/40. 11/20 turns into 22/40. And 23/40 stays as it is, because the denominator is already 40.

Putting them in order is now simple,

3/8 (15/40) <  2/5 (16/40) < 11/20 (22/40) < 23/40 < 7/10 (28/40) < 3/4 (30/40)

***When you multiply any fraction to change its denominator, multiply it by the same thing to the numerator as well.

Good Luck!

8 0
3 years ago
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