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Lynna [10]
3 years ago
6

Helen has a box of marbles.

Mathematics
2 answers:
ratelena [41]3 years ago
7 0
Do you know how many marbles are in the box?
zysi [14]3 years ago
6 0

Answer:

I don't know because I don't know how many total marbles there are. If you know how many marbles there are in total that would help me figure out the problem.

Step-by-step explanation:

You might be interested in
Please help, (AP is arithemtic progression)
defon

Answer:

p = 8

Step-by-step explanation:

The n th term of an AP is

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given a₉ = 4 + 5p and d = 5, then

a₁ + 8d = 4 + 5p, that is

a₁ + 8(5) = 4 + 5p

a₁ + 40 = 4 + 5p ( subtract 40 from both sides )

a₁ = 5p - 36

a₂ = 5p - 36 + 5 = 5p - 31

a₃ = 5p - 31 + 5 = 5p - 26

a₄ = 5p - 26 + 5 = 5p - 21

Given that the sum of the first 4 terms = 7p - 10, then

5p - 36 + 5p - 31 + 5p - 26 + 5p - 21 = 7p - 10, that is

20p - 114 = 7p - 10 ( subtract 7p from both sides )

13p - 114 = - 10 ( add 114 to both sides )

13p = 104 ( divide both sides by 13 )

p = 8

7 0
3 years ago
.Write the following number in expanded form using powers of 10: 67.938
HACTEHA [7]

Answer:

67.938 =

(6 * 10^1) + (7 * 10^0) + (9 * 10^-1) + (3 * 10^-2) + (8 * 10^-3)

Step-by-step explanation:

Here, we want to write the given number in expanded form

Mathematically that will be ;

60 + 7 + 0.9 + 0.03 + 0.008

Using the power of 10, that will be;

(6 * 10^1) + (7 * 10^0) + (9 * 10^-1) + (3 * 10^-2) + (8 * 10^-3)

8 0
3 years ago
How many strings of eight uppercase English letters are there that start with X, if no letter can be repeated?
spin [16.1K]
X 25*24*23*22*21*20*19
which gives you
2,422,728,000
5 0
3 years ago
Plz hurry will give 17 points and brainliest
aksik [14]

Answer:

4

Step-by-step explanation:

7 0
3 years ago
Use the function below to find F(4) F(x) = 5 * (1/3) ^ x
Inessa05 [86]

The answer for the function F(4) = 5/81

<u>Step-by-step explanation</u>:

The given function is F(x) = 5 * (1/3) ^ x

<u>step 1</u> :

The x value is given as the input to get the output from F(x)

<u>step 2</u> :

Here, F(4) means that the x value is x=4

<u>step 3</u> :

Now, substitute x=4 in the given function F(x)

F(4) = 5 (1/3)^4

       =5 (1/81)

F(4) = 5/81

7 0
4 years ago
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