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3 years ago

When think of a number double it and add five and get 13 What the number I Thought

Mathematics

1 answer:

aev [14]3 years ago

3 0

Let the no be x

ATQ

$\\ \sf\longmapsto 2x+5=13$

$\\ \sf\longmapsto 2x=13-5$

$\\ \sf\longmapsto 2x=8$

$\\ \sf\longmapsto x=\dfrac{8}{2}$

$\\ \sf\longmapsto x=4$

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Find the amount of each payment to be made into a sinking fund which earns 9% compounded quarterly and produces $43 comma 000

Solnce55 [7]

Answer:

$2647.18

Step-by-step explanation:

Formula : $A[\frac{1+(\frac{r}{n})^{n}-1 }{(\frac{r}{n} )}]$

Future value = $43,000

r = rate of interest = 9% = 0.09

t = 3.5 years (compounded quarterly)

n = number of compounding (3.5 × 4) = 14

Now put the values into formula :

43000 = $A[\frac{1+(\frac{0.09}{4})^{14}-1 }{(\frac{0.09}{4} )}]$

$43000=A(\frac{(1+0.0225)^{14}-1}{\frac{0.09}{4}})$

$43000=A(\frac{(1.0225)^{14}-1}{0.0225})$

43000=A( $\frac{0.365483427}{0.0225})$

43,000 = A(16.243708)

A = $\frac{43000}{16.243708}$

A = $2,647.17883 ≈ $2647.18

5 0

3 years ago

How do you solve 54767876+11222.9847

natima [27]

Answer:

54779098.9847

Step-by-step explanation:

You add them together

7 0

3 years ago

Please solve and show work! Thanks!

Mrac [35]

Answer:

6⅔ minutes

Or, 6 minutes 40 seconds

Step-by-step explanation:

X/10 + X/20 = X/T

(2X+X)/20 = X/T

3X/20 = X/T

3/20 = 1/T

T = 20/3

T = 6⅔ mins

6 0

3 years ago

Let a and b be irrational numbers. Is (ab)^2 always rational, sometimes rational, or never rational?

Zielflug [23.3K]

When you multiply 2 irrational numbers, the result is always irrational. This applies to squaring as well since it is still multiplying irrational numbers together (though the terms are the same)

Final answer: never rational

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3 years ago

Will award 40 points if you answer correctly

IceJOKER [234]

see picture for the graph

equation: y = 1.50x

3 0

3 years ago

Read 2 more answers