All categories

3 years ago

Can someone help me please and thanks .

Mathematics

1 answer:

enyata [817]3 years ago

6 0

Answer:

$180.

Step-by-step explanation:

First lets find the interest rate.

6.1 ÷ 100 = 0.061

0.061 x $200 = 12.2

based on the calculations, 12.2 is our interest rate in a year. Now lets find the interest rate in 15 years.

12.2 x 15 = $183

So $183 is our precise interest rate in 15 years, but lets round the interest rate to the nearest 10 dollars. Therefore, $180 is our answer.

You might be interested in

Is -0.142857142857142857 rational or irrational

sesenic [268]

Answer: Irrational because cannot be turned into fractions

Step-by-step explanation:

7 0

3 years ago

(10 points!!!) AND I’LL MAKE YOU BRAINLEST

Mnenie [13.5K]

Answer:

nnnononon0j9inononono

3 0

3 years ago

Say that a and b are the lengths of the legs of a right triangle and c is the length of the hypotenuse. Find b if a = 21 and c =

maria [59]

When the triangle is a right triangle, you can use the Pythagorean theorem. The formula would be

c^2 = a^2 + b^2

If a = 21 and c=29, thus

b^2 = c^2 - a^2
b^2 = 29^2 - 21^2
b^2 = 400
b = square root (400)
b = 20 units.

Thus, the answer is D) B = 400

5 0

3 years ago

Read 2 more answers

What is the y-axis in math?

Oduvanchick [21]

Answer:

y-axis. noun

Step-by-step explanation:

a reference axis, usually vertical, of a graph or two- or three-dimensional Cartesian coordinate system along which the y- coordinate is measured.

8 0

2 years ago

Read 2 more answers

A huge ice glacier in the Himalayas initially covered an area of 454545 square kilometers. Because of changing weather patterns,

zloy xaker [14]

Answer:

$t=-20ln\left(\dfrac{1}{3}\right)$

Step-by-step explanation:

The relationship between A, the area of the glacier in square kilometers, and t, the number of years the glacier has been melting, is modeled by the equation.:

$A=45e^{-0.05t}$

We want to determine the value of t for which the area, A(t)=15 square kilometers.

$15=45e^{-0.05t}\\$Divide both sides by 45\\\dfrac{15}{45} =\dfrac{45e^{-0.05t}}{45}\\\dfrac{1}{3}=e^{-0.05t}\\$Take the natural logarithm of both sides\\ln\left(\dfrac{1}{3}\right)=ln\left(e^{-0.05t}\right)\\ln\left(\dfrac{1}{3}\right)=-0.05t\\$Divide both sides by -0.05$\\t=-\dfrac{ln\left(\dfrac{1}{3}\right)}{0.05} \\=-\dfrac{ln\left(\dfrac{1}{3}\right)}{0.05}\\t=-20ln\left(\dfrac{1}{3}\right)$

Therefore, the time for which the area will be 15 sqyare kilometers is:

-20 ln(1/3) years.

7 0

3 years ago