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3 years ago

6

Alexandra invests some money into an account that pays 0.5% compound interest per annum.

1 answer:

lys-0071 [83]3 years ago

5 0

Answer:

200 Years

Step-by-step explanation:

0.5% X 10 = 5% Increase. So after 10 years 5% Increase

0.5% X 100 = 50% increase. So after 100 years 50% Increase

0.5 X 200 = 100% Increase. So after 200 years it will double.

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The school that Ted goes to is selling tickets to a choral performance. On the first day of ticket sales the school sold 7 adult

cestrela7 [59]

Answer:

Equations

Step-by-step explanation:

x=adult y=child

Day 1= 7x+8y= $168

day 2= 14x+13y= $294

7 0

3 years ago

The Environmental Protection Agency records data on the fuel economy of many different makes of cars. Data on the mileage of 20

artcher [175]

Answer:

A) 8.5 miles per gallon

Step-by-step explanation:

Given

$x = \{12\ 13\ 15\ 16\ 16\ 17\ 18\ 18\ 19\ 19\ 20\ 20\ 22\ 23\ 24\ 26\ 26\ 27\ 27\ 29\}$

$n = 20$

Required

The IQR

This is calculated as:

$IQR = Q_3 - Q_1$

Calculate $Q_1$

$Q_1 = \frac{1}{4}(n + 1)th$

$Q_1 = \frac{1}{4}(20 + 1)th$

$Q_1 = \frac{1}{4}(21)th$

Remove bracket

$Q_1 = 5.25th$

This means that:

$Q_1$ is the mean of 5th and 6th item

From the given data:

$5th \to 16$

$6th \to 17$

So, we have:

$Q_1 = \frac{1}{2}(16 + 17)$

$Q_1 = \frac{1}{2}(33)$

$Q_1 = 16.5$

$Q_1 = 16.25$

Calculate $Q_3$

$Q_3 = \frac{3}{4}(n + 1)th$

$Q_3 = \frac{3}{4}(20 + 1)th$

$Q_3 = \frac{3}{4}(21)th$

Remove bracket

$Q_3 = 15.75th$

This means that:

$Q_3$ is the mean of 15th and 16th item

From the data:

$15th \to 24$

$16th \to 26$

So:

$Q_3 = \frac{1}{2}(24 + 26)$

$Q_3 = \frac{1}{2}(50)$

$Q_3 = 25$

Recall that:

$IQR = Q_3 - Q_1$

$IQR = 25 -16.5$

$IQR = 8.5$

7 0

3 years ago

Please help<br> WILL MARK BRAINLYIST

bearhunter [10]

Answer: (4,-5) is the answer

5 0

3 years ago

Read 2 more answers

Can you help me please?

Vilka [71]

100 ml of fruit squash

sum the parts of the ratio, that is 2 + 7 = 9 parts

divide 450 ml by 9 to find 1 part

1 part = $\frac{450}{9}$ = 50 ml

squash is 2 parts = 2 × 50 = 100 ml

lemonade is 7 parts = 7 × 50 = 350 ml

total = 100 + 350 = 450 ml

7 0

3 years ago

14 rounded to the nearest tenth

mr_godi [17]

The answer would be 10 because anything under 4 rounds down (including 4 itself, unlike 5, which rounds up.

5 0

4 years ago