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3 years ago

Solve A = p(1+rt) for t

Mathematics

1 answer:

Svetlanka [38]3 years ago

7 0

A = p(1 + rt)
A/p = 1 + rt
rt = A/p - 1
t = (A/p - 1)/r

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Mom buys a rectangular rug with an area of 7 1/6 square meters. The length of the rug is 3 1/3 meters. What is the width of the

BartSMP [9]

Answer:

2 3/20 m

Step-by-step explanation:

The area is the product of the length and width

The area = 7 1/6 m² = 43/6 m²
The length = 3 1/3 m = 10/3 m

Width = ?

A = lw
w = A/l
w = 43/6 ÷ 10/3 = 43/6 × 3/10 = 43/20 = 2 3/20 m

The width is 2 3/20 m

4 0

3 years ago

If a vector's magnitude is 36 units right and 33 units up, what's the approximate magnitude of a vector that's one-third the len

omeli [17]

Answer:

The correct option is B. 16.3

Step-by-step explanation:

We are given a vector with components

V = 36x +33y

To solve this problem, we find its magnitude

|V| = SQRT (36^2 + 33^2)

|V| = SQRT (2385)

|V| = 48.836

To find the magnitude of the new vector we divide by three the previous quantity

|V2| = 48.836/3 = 16.278

5 0

3 years ago

find h and k such that the equation 3x^2 -hx +4k =0, so that the sum of the solutions is -12 and the product of the solutions is

Radda [10]

Let the solutions be a and b.
a = -2; b = -10
a + b = -2 + (-10) = -12
ab = (-2)(-10) = 20

(x - a)(x - b) = 0

(x - (-2))(x - (-10)) = 0

(x + 2)(x + 10) = 0

x^2 + 10x + 2x + 20 = 0

x^2 + 12x + 20 = 0

-h = 12

h = -12

4k = 20

k = 5

6 0

3 years ago

Simplify (2/5÷3/8)÷(-3/5)

liberstina [14]

Answer:

$\pink{ - 1 \frac{7}{9} }$

Step-by-step explanation:

$( \frac{2}{5} \div \frac{3}{8} ) \div ( - \frac{3}{5} ) \\ (\frac{2}{5} \times \frac{8}{3} ) \times ( - \frac{5}{3} ) \\ \frac{16}{15} \times - \frac{5}{3} \\ - \frac{80}{45}$

As the answer can be more simplified, divide both numerator and denominator by 5.

$- \frac{16}{9} = - 1 \frac{7}{9}$

3 0

1 year ago

K-10/2=7 two Step Equation

aivan3 [116]

I hope this helps you

K-10=7.2

K-10=14

K=14+10

K=24

6 0

3 years ago