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Goryan [66]
3 years ago
12

when 8 is subtracted from a certain number and the result is multiplied by 3 and the answer is 21 what is the original number

Mathematics
1 answer:
Maksim231197 [3]3 years ago
8 0

Step-by-step explanation:

The Real Answer Is 63

Maybe Positive Or Negative

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Problem Page A principal of $2100 is invested at 7.75% interest, compounded annually. How much will the investment be worth afte
just olya [345]

Answer:

After 12 years the investment will be worth $5145.

Step-by-step explanation:

The formula used for compounded interest is:

A = P(1+r/n)^nt

where,

A = future value

P = Principal Amount

r = interest rate

n = no of times interest is compounded

t = time

In the question given:

A=?

P = $2100

r = 7.75% or 0.0775

n = 1

t= 12

A= 2100*(1+0.0775/1)^1*12

A= 2100 *(1+0.0775)^12

A= 2100 *(1.0775)^12

A= 2100 * 2.45

A= 5145

So, after 12 years the investment will be worth $5145.

6 0
3 years ago
In a garden 45% of the plants are flowers. what fraction of the plants are flowers
Reil [10]

45/100 or 9/20 be sure to reduce


6 0
3 years ago
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A2+5a+6=0<br><img src="https://tex.z-dn.net/?f=%20%7Ba%7D%5E%7B2%7D%20%20%2B%205a%20%2B%206%20%3D%200" id="TexFormula1" title="
Katarina [22]

we are given

a^2+5a+6=0

we can use factoring formula

a^2-(m+n)a+mn=(a-m)(a-n)

we can compare

and we get

m+n=-5

mn=6

now, we can solve for m and n

and we get

m=-3 , n=-2

now, we can use formula

and we get

a^2+5a+6=(a+3)(a+2)

now, we can set it equal to 0

a^2+5a+6=(a+3)(a+2)=0

(a+3)=0

a=-3

a+2=0

a=-2

so, we will get

a=-2,a=-3.............Answer

3 0
3 years ago
Read 2 more answers
Please please help ASAP please please I’ll mark you as a branlist
wel

Answer:

4°

Step-by-step explanation:

Since it is said that the angles are corresponding angles so we know that corresponding angles are equal then,

<1 = <2

3x - 7 ° = x - 1°

3x - x = 7° - 1°

2x = 8°

x = 8° / 2

Therefore x = 4°

Hope it will help you :)

5 0
3 years ago
EASY BRAINLIEST PLEASE HELP!!
iogann1982 [59]

Answer:D..the diagonals bisect each other. Since bisectors divide the diagonals equally in two parts.

6 0
3 years ago
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