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3 years ago

Chelsea takes out a loan of $900 to buy a new laptop. The loan has a simple interest rate of 5% annually.

Mathematics

1 answer:

alexira [117]3 years ago

8 0

Answer

Step-by-step explanation:

to find one year of a lone do 900 times 0.05 which is 45

since it is 2 years, she will pay 90 dollars (45+45)

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The graph shown can be used to convert between kilometres and miles....

Crazy boy [7]

Answer:

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3 years ago

James is six years older than lousie. Eight years from now, James will be 4 times older than loise was 4 years ago. What is the

weeeeeb [17]

Answer: 26 years.

Step-by-step explanation:

Let x = current age of Louise (in years).

Then current age of James = x+6

Eight years from now, James's age = x+6+8= x+14

4 years ago, Louise's age = x-4

According to the question

x+14 = 4(x-4)

⇒ x+14 = 4x-16

⇒ 4x-x = 16+14

⇒ 3x = 30

⇒ x= 10 = current age of Louise (in years).

current age of James = 10+6 = 16 years

Sum of current ages = 16+10=26 years.

hence, the sum of the current ages is 26 years.

8 0

4 years ago

Please help!! Write the sum using summation notation, assuming the suggested pattern continues. -9 - 4 + 1 + 6 + ... + 66

fiasKO [112]

$r=-4-(-9)=-4+9=5 \\ \\ a_{1}=-9 \\ \\ a_{n}=66 \\ \\ a_{n}=a_{1}+(n-1)r \\ \\ -9+5(n-1)=66 \\ \\ -9+5n-5=66 \\ \\ 5n-14=66 \\ \\ 5n=80 \\ \\ n=16 \\ \\ S_{n}= \frac{a_{1}+a_{n}}{2} *n \\ \\ S_{n}= \frac{-9+66}{2}*16=57*8=456$

4 0

3 years ago

How would I write three times a number plus 5 times a number +4 is 196 as an equation

Yuki888 [10]

Answer:

$number = x \\ then \: 3x + 5x + 4 = 196 \\ = 8x + 4 = 196 \\ 8x = 192 \\ x = \frac{192}{8} \\ x = 24 \\ thank \: you$

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3 years ago

Find the exact value of cos300°.

CaHeK987 [17]

Answer:

ok it's simple

cos300° = 0.5 if you want a numerical value .....

Step-by-step explanation:

<h3>hopefully it will help you</h3>

4 0

3 years ago