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Dmitry [639]
3 years ago
15

Maria and Alex are opening a savings accounts. Maris deposits $50, she plans to add $10 each week. Alex deposits $30, he plans t

o add $15 each week. Which equation represents this situation?
I bet no one can get this question
Mathematics
1 answer:
Stels [109]3 years ago
8 0

well, i'm just trying to get this, but I think it is

ps : w represents weeks, t represents total

(50 + 30) + (10 X w) + (15 X w) = t

example : (50 + 30) + (10 X 3) + (15 X 3) = 155

( this is considering their savings account is the same)

if you want it separate I can rewrite the answer, so please tell me below!

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Please help me due tomorrow
Tom [10]

<u>Given </u><u>:</u><u>-</u>

  • The slope of the line through points (3,y) and (4,10) is 7 .

<u>To </u><u>Find</u><u> </u><u>:</u><u>-</u>

  • The value of y .

<u>Solution</u><u> </u><u>:</u><u>-</u>

As we know that the slope of the line is difference of ordinate divided by the difference of absicca as ,

\longrightarrow m = y -10 / 3 - 4

\longrightarrow 7 (-1) = y -10

\longrightarrow -7 = y -10

\longrightarrow y = 10 -7

\longrightarrow y = 3

<u>Hence</u><u> the</u><u> required</u><u> answer</u><u> is</u><u> </u><u>3.</u>

5 0
2 years ago
your family is driving to the beach. you travel 200kilometers in the first two hour. during the next hour you stop for lunch and
ziro4ka [17]

Answer:

8

Step-by-step explanation:

4 0
3 years ago
The correlation in error terms that arises when the error terms at successive points in time are related is termed _____.
n200080 [17]

Answer:

auto correlation is the answer to the question

7 0
1 year ago
4:3 and 25:45 are equal ratios true or false
kondaur [170]
False.

The scale factor for 3 and 45 is 15.

45 / 3 = 15.

We know that 25 isn't even a whole number for the scale factor, because no number x 4 can equal 25 (whole numbers only).

25 / 3 = 6.33333
8 0
2 years ago
A May 2000 Gallup poll found that 38% of the people in a random sample of 1,012 adult Americans said that they
Alex777 [14]

Answer:

10.

x P(X)

0 0.238

1 0.438

2 0.269

3 0.055

11.

0.707

There is 70.7% chance that at least one but at most two adults in the sample believes in the ghost

12.

1.14≅1

There will be one adult out of three we expect to believe in the ghost

Step-by-step explanation:

The probability distribution is constructed using binomial distribution.

We have to construct the probability distribution of the number adults believe in ghosts out of three adults. so,

x=0,1,2,3

n=3

p=probability of adults believe in ghosts=0.38

The binomial distribution formula

nCxp^xq^n-x=3cx0.38^x0.62^3-x

is computed for x=0,1,2,3 and the results depicts the probability distribution of the number adults believe in ghosts out of three adults.

x P(X)

0 0.238

1 0.438

2 0.269

3 0.055

11.

P(at least one but at most two adults in the sample believes in the ghost )= P(x=1)+P(x=2)=0.437+0.269=0.707

P(at least one but at most two adults in the sample believes in the ghost )=70.7%

12. E(x)=n*p

here n=3 adults and p=0.38

E(x)=3*0.38=1.14

so we expect one adult out of three will believe in the ghosts.

4 0
3 years ago
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