All categories

2 years ago

Interest after 1 year:

Mathematics

2 answers:

jasenka [17]2 years ago

5 0

which class is this because I am in 7th class so that's why I can't give

alexira [117]2 years ago

5 0

For simple interest, the equation is
i = prt
interest = (principal/amount deposited) • (rate in decimal form) • (time in years)

To change the 2 1/2% interest to decimal form, first it becomes 2.5% interest, then divide by 100 (moving the decimal place 2 to the left), = 0.025

To calculate interest after 1 year, the equation blanks they gave you left off the time, which is 1, because it won’t change the equation.

0.025 • 250 = $6.25

Interest after 8 years:

i = (250)(0.025)(8)
i = $50

Hope this helps. Let me know in the comments if you have questions, or want to include the rest of the “convince me” section.

You might be interested in

Help pls I will give brainliest to whoever answers best

katovenus [111]

Step-by-step explanation:

its 60

7 0

2 years ago

Solve the equation 2/3-4x+7/2=-9x+5/6

VMariaS [17]

Answer:

For this equation the value of x is - 2/3

Step-by-step explanation:

1. Resolving the equation 2/3-4x+7/2=-9x+5/6

-4x + 9x = 5/6 - 2/3 - 7/2 (Putting the all the x values on the left)

5x = (5/6 - 4/6 -21/6)

5x = -20/6

x = - 20/6 /5 (Dividing by 5 at both sides)

x = -20/6 * 1/5

x = -4/6 = - 2/3 (Simplifying)

2. Proof of replacing x by -2/3

2/3 - 4 (-2/3) + 7/2 = -9 (-2/3) + 5/6

2/3 + 8/3 + 7/2 = 18/3 + 5/6

10/3 + 7/2 = 6 + 5/6

20 + 21 = 36 + 5 (Multiplying by 6 at both sides)

41 = 41

It means the value of -2/3 for x is correct

Note: Same answer than 13866851

4 0

3 years ago

Solve for k 4.5+1.5k=18−3k

sertanlavr [38]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{k = 3}}}}}$

Step-by-step explanation:

$\sf{4.5 + 1.5k = 18 - 3k}$

Move 3k to left hand side and change it's sign

Similarly, move 4.5 to right hand side and change it's sign

$\longrightarrow{ \sf{1.5k + 3k = 18 - 4.5}}$

Collect like terms

$\longrightarrow{ \sf{4.5k = 18 - 4.5}}$

Subtract 4.5 from 18

$\longrightarrow{ \sf{4.5k = 13.5}}$

Divide both sides by 4.5

$\longrightarrow{ \sf{ \frac{4.5k}{4.5} = \frac{13.5}{4.5} }}$

Calculate

$\longrightarrow{ \sf{k = 3}}$

Hope I helped!

Best regards! :D

5 0

2 years ago

Read 2 more answers

HELPPPP PLZZ ND THANK YOU SOO MUCH

swat32

Answer:

50, 40, 30, 250, 350

Step-by-step explanation:

1/2 = 0.5, 0.5 x 100 = 50 (0.5 -> 5 -> 50)

2/5 = 0.4 (10 / 5 [the denominator] = 2, 0.2 x 2 [the numerator] = 0.4), 0.4 x 100 = 40 (0.4 -> 4 -> 40)

3/10 = (10 / 10 [the denominator] = 1, 0.1 x 3 [the numerator] = 0.3), 0.3 x 100 = 30 (0.3 -> 3 -> 30)

5/2 = 2.5 (2 1/2), 2.5 x 100 = 250 (2.5 -> 25 -> 250)

7/2 = 3.5 (3 1/2), 3.5 x 100 = 350 (3.5 -> 35 -> 350)

Note: I'm not sure if I understand the question completely, but I changed the fraction into a decimal and multiplied it by 100. Not sure what it means by "Divide fraction".

3 0

2 years ago

A cube in Emily's closet where she stores her jewelry has a side length of 1 1/4 feet.

Gnom [1K]

Answer:

1.95 cubic feet

Step-by-step explanation:

We are given that Emily stores her jewelry in a cube and the cube has a side length of $1\frac{1}{4}$ feet.