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3 years ago

What is the mean number of cakes jenny bakes in a month

2 answers:

tatiyna3 years ago

7 0

To find the mean <span>you add up all the numbers and then divide by the numbers you added by the numbers you already have </span>

Oliga [24]3 years ago

4 0

Answer:480

Step-by-step explanation: 460 was in August

320 was in September

440 was in October

560was in November

620 was in December

Add all together: 460+320+440+560+620=2400

2400:5(five months)=480

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You have 2,112 grams of a radioactive kind of mercury. How much will be left after 188 days if it's half-life is 47 days?

Anastasy [175]

Answer:

132 g

Step-by-step explanation:

Initial amount = 2112 g
Time = 188 days
Half-life = 47 days

188 days / 47 days = 4 periods

<u>Mercury left after 188 days:</u>

2112 * (1/2)^4 =
2112* 1/16 =
2112/16 =
132 g

4 0

2 years ago

You have budgeted $4,800 for a company to complete guest satisfaction surveys for you. They charge $1,800 + $6 per respondent. H

Sophie [7]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

What is f(x)=4*(1/2)^x

lara31 [8.8K]

Answer:

f(x)=4/2x

i dont have no explanation

5 0

2 years ago

How do you write an equation for the sum of three consecutive numbers equals 384?

emmasim [6.3K]

Let x be the smallest number.
x＋(x＋1)＋(x＋2)＝384
3x＋3＝384
3x＝381
x＝127
The three consecutive numbers are 127, 128 and 129.

Hope my answer helped u :)

4 0

2 years ago

Complete the square to factor X^2 +10X=-8

ella [17]

Answer: $x=\sqrt{17}-5$ and $x = -\sqrt{17}-5$

Step-by-step explanation:

Alright, lets get started.

The given equation is :

$x^{2} +10x = -8$

Adding 8 in both sides, it will become

$x^{2} +10x + 8 = -8 +8$

$x^{2} +10x + 8 = 0$

To make it perfect square, we need to add 25 and subtract 25

$x^{2} +10x + 8 +25-25= 0$

$x^2+10x+25+8-25=0$

$(x+5)^2+8-25=0$

$(x+5)^2-17=0$

Adding 17 in both sides

$(x+5)^2=17$

taking square root

$x+5=\sqrt{17}$

So,

$x=\sqrt{17}-5$ and $x = -\sqrt{17}-5$ .. Answer

Hope it will help :)

7 0

2 years ago

Read 2 more answers