So, you have to have your equation in terms of dimes. What you said about what he has: four more nickels than dimes in his pocket. Will help with our equation.
We know what a nickel and dime is worth. A nickel is .05 and a dime is .1
We don't know how many dimes are in his pocket, since we're trying to solve it.
.1x+(4+x).05=1.25;
In the parenthesis, it shows how there are four more nickels. Let's solve it now.
.1x + (4+x).05=1.25
.1x + .2+ .05x = 1.25; Let's add like terms.
.15x + .2 = 1.25; Subtract .2 from both sides.
.15x= 1.05
1.05÷.15= 7 =x
There are 7 dimes in his pocket, let's check our answer.
We now know there are 11 nickels, since there are four more nickels than dimes.
11(.05) +.1(7) = 1.25
.55+ .7 = 1.25
Now that we've tried it, we know there are 7 dimes in his pocket.
Tell me if this helps!
3^2-y^2
then apply formula (a-b)(a+b)=a^2-b^2
so,,
(3-y)(3+y)
Answer:
$40 million
Step-by-step explanation:
According to the scenario, computation of the given data are as follows,
Current value = 125%
which means that current value is 25% more than its initial value.
Let Initial Value = X
So, Increase in investment value = 25% × X = 0.25X
Given, increase value = $10million
So, 0.25X = $10 million
= X = $10million
= X = $10million ÷ 0.25
= X = $40 million
Hence the initial value of investment is $40million.
0.13 + 0.14= 0.27
0.27 ÷ 2 = 0.135
Therefore the midpt. Is 0.135
The population in ten years will be 208,000
