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murzikaleks [220]
3 years ago
8

How much times dose 30 go into 90

Mathematics
2 answers:
Oduvanchick [21]3 years ago
8 0

Answer:

3

Step-by-step explanation:

30+30+30=90

that 3 times

r-ruslan [8.4K]3 years ago
3 0

Answer:

*does and 3 genius use a calculator or common sense

Step-by-step explanation:

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I need help on question 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 please
Keith_Richards [23]

Answer:

The solution is given in the photo

4 0
2 years ago
How long will it take Birr 500
notka56 [123]

It would take 25 years for Birr 500 to quadruple if invested at a rate of 12% simple interest per annum.

<h3 /><h3>Simple interest formula</h3>

Using the simple interest formula A = P(1 + rt) where

  • P = princial amount = Birr 500,
  • A = final amount = 4P (since it is quadrupled),
  • r = rate = 12% = 12/100 = 0.12 and
  • t = time to quadruple
<h3 /><h3>Finding the time it takes to quadruple </h3>

Since we require t, making t subject of the formula, we have

t = [(A/P) - 1]/r

Substituting the values of the variables into the equation, we have

t = [(A/P) - 1]/r

t = [(4P/P) - 1]/0.12

t = [4 - 1]/0.12

t = 3/0.12

t = 25 years

So, it would take 25 years for Birr 500 to quadruple if invested at a rate of 12% simple interest per annum.

Learn more about simple interest here:

brainly.com/question/25793394

4 0
3 years ago
Surface area of a cube or a rectangular prism
suter [353]

Answer:

96 cm^2

Step-by-step explanation:

All faces of a cube are equal in area.

Therefore the Formula for SA of a cube is 6*s^2

SA = 6*4*4 = 96

5 0
2 years ago
Find the slope and y-intercept of the line y=-1/2x+1
ankoles [38]

Answer:

Slope: -1/2

Y intercept: 1

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
PLEASE ANSWERING THIS QUESTION!!!
Artemon [7]

The equation after completing the square is (z + 4)² = 80

The solutions to the given equation in the simplest radical form are z = -4 + 4√5 and z = -4 - 4√5

<h3>Completing the square </h3>

From the question, we are to solve the given quadratic equation by completing the square

The given equation is

z² +8z - 44 =20

First, add 44 to both sides of the equation

z² +8z - 44 + 44 = 20 + 44

z² +8z = 64

Now, divide the coefficient of z by 2, square the value and add to both sides

The coefficient of z is 8

Dividing

8/2 = 4

Squaring

4²

Now, add this to both sides

That is,

z² +8z +4² = 64 + 4²

(z + 4)² = 64 + 16

(z + 4)² = 80

The equation after completing the square is  

(z + 4)² = 80

Continuation

(z + 4)² = 80

Take the square root of both sides

√(z + 4)² = ±√80

z + 4 = ±√80

z = -4 ± √80

z = -4 ± 4√5

z = -4 + 4√5 and z = -4 - 4√5

Hence,

The equation after completing the square is (z + 4)² = 80

The solutions to the given equation in the simplest radical form are z = -4 + 4√5 and z = -4 - 4√5

Learn more on Completing the square here: brainly.com/question/49444

#SPJ1

5 0
1 year ago
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