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Dimas [21]
3 years ago
13

Two investments totaling $ 18,000 produce an annual income of $1370. One investment yields 7% per year, while the other yields 8

% per year. How much is invested at each rate?
Mathematics
1 answer:
blsea [12.9K]3 years ago
5 0
Let amount invested at 6% be S
Then amount invested at 8% = 16,000 - S 
We therefore have: .06(S) + .08(16,000 - S) = 1,140 .06S + 1,280 - .08S = 1,140 .06S - .08S = 1,140 - 1,280 - .02S = - 140 S, or amount invested at 6% = $ 7,000Amount invested at 8% = $16,000 - 7,000, or $ 9,000
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Which number line shows the correct placement of 20%, 1/3, and 2/3?
BigorU [14]

Answer with Step-by-step explanation:

We are given that

20%

When we change percent into fraction we will divide the percent by 100

\frac{20}{100}=\frac{1}{5}

\frac{1}{3}

\frac{2}{3}

We have to find the line which shows the correct placement of given numbers.

Lcm(3,5)=15

\frac{1\times 3}{5\times 3}=\frac{3}{15}

\frac{1\times 5}{3\times 5}=\frac{5}{15}

\frac{2\times 5}{3\times 5}=\frac{10}{15}

7 0
3 years ago
6 more than the difference of b and 5
kirza4 [7]
The answer would be b-5+6
8 0
3 years ago
Sorry i have another question what is the inequality of 8x−8≤−72.
vova2212 [387]

That answer is x≤−8


Inequality:

8x−8≤−72


Step number  1:  You have to Add 8 to both sides.

8x−8+8≤−72+8

8x≤−64



Step number 2: You have to Divide both sides by 8.

8x /8  ≤  −64 / 8


Ur Answer:

x≤−8


Hope this helps :)


7 0
4 years ago
Read 2 more answers
A wedding dress was marked up 35% and is now selling for $270.00. What was the original price of the dress?
qaws [65]
$270 equals 135% of the original price

270/x=135/100

135*2=270
100*2=200

Final answer: $200
5 0
3 years ago
Read 2 more answers
If 1/2 cup of soup equals 120 milliliters, then how many milliliters are in 3 1/2 cups of soup?
pav-90 [236]
Ok. So since they give you that 1/2 cup of soup equals 120 milliliters it makes this very easy. So since we know 120milliliters=1/2 and that 3 1/2= 7 1/2s (please note that the 7  1/2s doesnt mean seven and 1/2 it means seven 1/2s) you just add 120 to itself 7 times getting an answer of 840. (please vote brainliest ^^)
8 0
3 years ago
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