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3 years ago

4 less than the number product of a number and 8 is 44 .what it the number

Mathematics

2 answers:

Phoenix [80]3 years ago

5 0

The number would be 5. (44-4)divided by 8. = 5. Best of luck!

Anettt [7]3 years ago

3 0

Set up the problem like this: x - 4 + 8 = 44

x-4+8=44 (8-4)

x+4=44

-4 -4 (subtract 4 from both sides)

x=40

Answer: the number is 40.

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In-s [12.5K]

Answer:

t=0.57h

Step-by-step explanation:

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3 years ago

What is the exact time t, in years, needed for the balance of an account that earns 5% annual 8. Interest compounded continuousl

Brums [2.3K]

Answer:

It takes 22.52 years for the balance to triple in value.

Step-by-step explanation:

Continuous compounding:

The amount of money earned using continuous compounding is given by the following equation:

$A(t) = A(0)(1+r)^t$

In which A(0) is the initial amount of money and r is the interest rate, as a decimal.

Interest rate of 5%.

This means that $r = 0.05$ , and thus:

$A(t) = A(0)(1+r)^t$

$A(t) = A(0)(1+0.05)^t$

$A(t) = A(0)(1.05)^t$

Time for the balance to triple?

This is t for which $A(t) = 3A(0)$ . So

$A(t) = A(0)(1.05)^t$

$3A(0) = A(0)(1.05)^t$

$(1.05)^t = 3$

$\log{(1.05)^t} = \log{3}$

$t\log{1.05} = \log{3}$

$t = \frac{\log{3}}{\log{1.05}}$

$t = 22.52$

It takes 22.52 years for the balance to triple in value.

3 0

3 years ago

The difference of two numbers is 15. The larger number is 1 more than 3 times the smaller number. What are the two numbers?

loris [4]

Answer:

Step-by-step explanation:

Let S = the smaller number.

"The larger number is 1 more than 3 times the smaller number."

The larger number is 3S + 1.

The difference between the numbers is 15, so the larger number minus the smaller number equals 15.

3S + 1 - S = 15

2S + 1 = 15

2S = 14

S = 7

The smaller number is 7.

larger number = 3S + 1 = 3(7) + 1 = 21 + 1 = 22

The larger number is 22.

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3 years ago

What is the density of Olivine? Mass = 20g; Volume = 6.15 cubic cm.<br> Round to TWO decimal places

vovangra [49]

3.25 cubic cm per gram

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2 years ago

A piece of pie costs .10 and a cup of coffee costs .5. How much will 40 pieces of pie and 20 cups of coffee cost?

dybincka [34]

One pie costs 0.10
you are buying 40 pies so...
40 x 0.10 = $4

one cup of coffee costs 0.50
you are buying 20 coffee so...
20 x 0.50 = $10

$4 + $10 = $14

It costs $14 to buy 40 pieces of pie and 20 cups of coffee

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2 years ago