** PLEASE HELP ** Jose invests money in two simple interest accounts. He invests four times as much in an account paying 12% as he does in an account paying 6%. If he earns $216.00 in interest in one year from both accounts combined, how much did he invest altogether?

Step-by-step explanation:

Let x represent the amount which he invested in the account paying 12% interest.

Let y represent the amount which he invested in the account paying 6% interest.

He invests four times as much in an account paying 12% as he does in an account paying 6%. This means that

x = 4y

The formula for determining simple interest is expressed as

I = PRT/100

Considering the account paying 12% interest,

P = $x

T = 1 year

R = 12℅

I = (x × 12 × 1)/100 = 0.12x

Considering the account paying 6% interest,

P = $y

T = 1 year

R = 6℅

I = (y × 6 × 1)/100 = 0.06y

If he earns $216.00 in interest in one year from both accounts combined, it means that

0.12x + 0.06y = 216 - - - - - - - - - -1

Substituting x = 4y into equation 1, it becomes

0.12(4y) + 0.06y = 216

0.48y + 0.06y = 216

0.54y = 216

y = 216/0.54 = 400

x = 4y = 4 × 400

x = 1600

The total amount invested is

400 + 1600 = $2000

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.  

the answer is su.k.my? ? co.kc