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Crazy boy [7]
3 years ago
8

How would u test whether 7 is a factor of 291

Mathematics
1 answer:
Nina [5.8K]3 years ago
7 0
Divide 291 by 7. If you get a whole number, its a factor. If it comes out as a decimal or fraction, its not a factor.
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Please help What’s the answer?
morpeh [17]

Answer:

A. x=54 And

B. x= 89

these numbers are less then hundred.

< this sign prove that what is the less number of given question.

6 0
3 years ago
Money in a bank triples every 10 years. If $100 is deposited today, what will its value be after 40 years? PLEASE SHOW ME STEP B
LenKa [72]

Answer:

d) $8,100

Step-by-step explanation:

Given information:

  • Money triples every 10 years
  • Initial deposit = $100
  • Number of years invested = 40 years

If the money triples (multiplies by 3) every 10 years,
then in 40 years time it will triple <u>4 times</u>, as 40 ÷ 10 = 4

⇒ Account balance after 40 years = $100 × 3 × 3 × 3 × 3

                                                         = $100 × 3⁴

                                                         = $8,100

<u>Proof</u>

In 10 years time the balance of the account will be:

$100 x 3 = $300

In another 10 years time, the balance of the account will be:

$300 x 3 = $900

In another 10 years time, the balance of the account will be:

$900 x 3 = $2700

In another 10 years time, the balance of the account will be:

$2700 x 3 = $8100

7 0
2 years ago
If f(x) = x + 8 and g(x) = –4x – 3, find (f + g)(x).
Alecsey [184]

Answer:

B

Step-by-step explanation:

(f + g)(x)

= f(x) + g(x)

= x + 8 - 4x - 3 ← collect like terms

= - 3x + 5

5 0
2 years ago
Read 2 more answers
Which expression is not equivalent to 8
Tom [10]
12 + n

if you substitute n for any whole number and simplify. you will find that 12+n does not equal any others. for example, i used 6 in place of n and all equations gives you 10 except 12+n

hope this helps!
5 0
2 years ago
If y equals -12 when x equals 9 find y when x equals negative 4
alexandr1967 [171]
You can make a proportion. -12/y=9/4 -12*4-9=5.33
5 0
3 years ago
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