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pshichka [43]
3 years ago
14

What is the answer,I don’t know I’ve tried everything x help please

Mathematics
1 answer:
valina [46]3 years ago
6 0

Answer: Cynthia must invest a smallest amount of 6911 pounds.

Explanation:

Compound interest makes the initial deposit grow exponentially in the number of years. So let us denote the initial investment (deposit) x.

After one year the balance with interest will be x(1+0.05)=x*1.05

After two years the balance will be (x*1.05)*1.05, and so on.

After t years the balance will be x_t= x\cdot 1.05^t

Now we are looking at balance after t=3 years, and we know that balance should be 8000 pounds, or more.

x\cdot 1.05^3 \geq 8000

It is easy to solve for x:

x \geq \frac{8000}{1.05^3}=\frac{8000}{1.1576}\approx6910.7

So, for inequality to be satisfied, Cynthia must invest a smallest amount of 6911 pounds.

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Which expression has a solution of 6, if r = 4?
nikitadnepr [17]

Answer:

1.

Step-by-step explanation:

1. 4 + 2 = 6

2. 4 - 4 = 0

3. 10 + 4 = 14

4. 4 - 10 = -6

number 1 is the right answer

5 0
2 years ago
Help a little eeeeeeeeeee
ozzi
0.8 or 4/5
Both are correct, but in different form.

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7 0
3 years ago
(Multi Step Algebra)<br>15x+12=19x-24<br>what is the answer? help me please ​
solmaris [256]

9

Step-by-step explanation:

15x+12=19x-24

15x-19x=-24-12

-4x=-36/÷(-4)

x=9

You first put all the x on one side and numbers on the other and be careful about + and - and then you divide by everything with the x so you have only the x left and you get the aswer.

5 0
2 years ago
Read 2 more answers
after losing eight yards on a play, the bears retain possession of the football on their 23-yard line. where was the ball before
loris [4]
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6 0
3 years ago
MAX POINTS PLS ANSWER CORRECTLY OR WILL REPORT ty !
Oksana_A [137]

Answer:

136112 cm^{2}

Step-by-step explanation:

since the outer circle is 25cm wider on one side, the radius of outer circle is 25 cm wider. (imagine rotating the green line to match with the pink line, you'll see the outer circle radius more clearly)

r of inside circle = 148.4/2 = 74.2

r of outside circle = 74.2 +25 = 99.2

the shaded region = A of outer circle - A of inner circle

=3.14(99.2)^2 - 3.14(74.2)^2

area of a circle is \pi r^{2}, I plugged in known values above^.

= 30899.6096 - 17287.7096 = 13611.9 (I definitely recommend a calculator)

rounded to nearest whole number = 13612

4 0
3 years ago
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