All categories

3 years ago

How do you solve -3+r/3=-5

Mathematics

1 answer:

MAVERICK [17]3 years ago

7 0

Answer:

r=-6

Step-by-step explanation:

Question: -3+r/3=-5

1) Multiply both sides of the equation by 3:

-9+r=-15

2) Add 9 to both sides:

r=-6

Footnotes:

1) In step 1 when I multiplied both sides of the equation by 3, don't forget you also have to multiply -3 by 3 because it is not part of the fraction (which is how I got -9)

You might be interested in

What is the next number of 1 2 6 17 47 ? and how?!

geniusboy [140]

2 , 6 , 17 , 47 , 108 , ...

t(n) = 2n^3 - 8.5n^2 + 15.5n - 7

3 0

3 years ago

What is the correct equation for a line that has a slope of 1/3, and a y intercept of 4

Julli [10]

Answer:

y=1/3x+4

Step-by-step explanation:

It should be correct as the gradient = 1/3

and the y-intercept = C

= +4

8 0

3 years ago

Orlando invests $1000 at 6% annual interest compounded daily and Bernadette invests $1000 at 7%

Montano1993 [528]

Answer:

6 Years

Step-by-step explanation:

Orlando invests $1000 at 6% annual interest compounded daily.

Orlando's investment = $A=1000(1+\frac{0.06}{365})^{(365\times t)}$

Bernadette invests $1000 at 7% simple interest.

Bernadette's investment = A = 1000(1+0.07×t)

By trail and error method we will use t = 5

Bernadette's investment will be after 5 years

1000(1 + 0.07 × 5)

= 1000(1 + 0.35)

= 1000 × 1.35

= $1350

Orlando's investment after 5 years

$A=1000(1+\frac{0.06}{365})^{(365\times 5)}$

= $1000(1+0.000164)^{1825}$

= $1000(1.000164)^{1825}$

= 1000(1.349826)

= 1349.825527 ≈ $1349.83

After 5 years Orlando's investment will not be more than Bernadette's.

Therefore, when we use t = 6

After 6 years Orlando's investment will be = $1433.29

and Bernadette's investment will be = $1420

So, after 6 whole years Orlando's investment will be worth more than Bernadette's investment.

8 0

3 years ago

If x represents a number, write an expression in terms of x for seven less than three times this number divided

TEA [102]

Step-by-step explanation:

seven less than three times this number = 7 - 3x

7 - 3x divided by 5 times the square of number =

$\frac{7 - 3x}{5 {x}^{2} }$

hope this answer helps you dear...and may u have a great day ahead!

5 0

3 years ago

You are given a box of 100 silver dollars, all facing heads up. You are instructed to shake the box 2 times; after the second sh

Nimfa-mama [501]

100 divided by 2 is 50 and then divided by 6 is 8.333333 but you just round that to 8$.

8 0

3 years ago

Read 2 more answers