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tiny-mole [99]
2 years ago
6

5. Rebecca is 6 years older than three times Andrew's age. The sum of their ages is 18. How old is Rebecca?

Mathematics
1 answer:
anygoal [31]2 years ago
5 0

Answer:

Rebecca is 18

Step-by-step explanation:

18/6-3=0

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60/30 in simplistic form<br><br><br> Need answer quick!!!!!!!!!
makkiz [27]

Answer:

2

Step-by-step explanation:

60/30 is 2

HOpe this helps :D

PLz mark brainliest if correct :D

3 0
3 years ago
Please help (if you can’t it’s okay) :&gt;
IrinaVladis [17]

Answer:

the answer is 11%

Step-by-step explanation:

this is because

27/30x100=90

which is 90

but the difference between 100 and 90 is 10

so its 10% but its closer to 11%

so yeah

i am not sure if its correct

3 0
3 years ago
Read 2 more answers
A 99% confidence interval for the difference between two proportions was estimated at 0.11, 0.39. Based on this, we can conclude
sladkih [1.3K]

Answer:

\hat p_1 -\hat p_2 \pm z_{\alpha/2} SE

And for this case the confidence interval is given by:

0.11 \leq p_1 -p_2 \leq 0.39

Since the confidenc einterval not contains the value 0 we can conclude that we have significant difference between the two population proportion of interest 1% of significance given. So then we can't conclude that the two proportions are equal

Step-by-step explanation:

Let p1 and p2 the population proportions of interest and let \hat p_1 and \hat p_2 the estimators for the proportions we know that the confidence interval for the difference of proportions is given by this formula:

\hat p_1 -\hat p_2 \pm z_{\alpha/2} SE

And for this case the confidence interval is given by:

0.11 \leq p_1 -p_2 \leq 0.39

Since the confidence interval not contains the value 0 we can conclude that we have significant difference between the two population proportion of interest 1% of significance given. So then we can't conclude that the two proportions are equal

4 0
2 years ago
How many solutions does the following equation have?
RoseWind [281]

Answer:

There will be No solution for the equation 9x - 4 = - 3x + 5 + 12x. Option B is correct.

Step-by-step explanation:

We need to determine how many solutions the equation 9x - 4 = - 3x + 5 + 12x have.

Solving the equation and finding the solutions

9x - 4 = - 3x + 5 + 12x

Combining like terms, Moving 3x and 12x to left side of equality and changing their signs and moving 4 on right side of equation and changing sign.

9x +3x-12x =  5 + 4

Simplifying

12x-12x =  9\\0=9

Solving the equation we get 0=9 which is false. So, there will be No solution for the equation 9x - 4 = - 3x + 5 + 12x. Option B is correct.

5 0
2 years ago
Use the graph of the polynomial function to find the factored form of the
elixir [45]

Answer:

I dont but want to.

Hope this helps! :) ;-;

Step-by-step explanation:

8 0
2 years ago
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