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2 years ago

3. What is the value of 42 – 2(3 • 5+ 1)?

Mathematics

2 answers:

sp2606 [1]2 years ago

6 0

Answer:

Step-by-step explanation:

lys-0071 [83]2 years ago

4 0

Answer:

Step-by-step explanation:

Multiply the numbers

42−2(15+1)

Add the numbers

42−2(16)

Multiply the numbers

42−32

Subtract the numbers

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Turn 276% into a mixed number

AlladinOne [14]

Mixed number is (wholenumber)+(properfraction)
a proper fraction is a/b where a<b and b≠0

so

percent means parts out of 100
x%=x/100

so
276%=
276/100=
200/100+76/100=
2+76/100=
2+38/50=
2+19/25

2 and 19/25

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3 years ago

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oee [108]

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3 years ago

Read 2 more answers

A growth medium is inoculated with 1,000 bacteria, which grow at a rate of 15% each day. What is the population of the culture 6

ddd [48]

Answer:

The population of bacteria after 6 days is 2,313.06

Step-by-step explanation:

Given as :

The initial population of bacteria = i = 1,000 bacteria

The growth rate of bacteria per day = 15%

Let The population of bacteria after 6 days = f

The time period of growth = 6 days

<u>Now, According to question</u>

The population of bacteria after 6 days = initial population × $(1+\dfrac{\textrm rate}{100})^{\textrm time}$

Or, f = i × $(1+\dfrac{\textrm r}{100})^{\textrm t}$

Or, f = 1000 × $(1+\dfrac{\textrm 15}{100})^{\textrm 6}$

Or, f = 1000 × $(1.15)^{6}$

Or, f = 1000 × 2.31306

∴ f = 2,313.06

So,The population of bacteria after 6 days = f = 2,313.06

Hence,The population of bacteria after 6 days is 2,313.06 Answer

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3 years ago

In a bag of keys, there are 12 silver keys, 5 black keys, 11 copper keys, and 2 painted keys of various colors. One key is drawn

umka2103 [35]

The total number of keys equals:
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The probability to pick a copper key is:
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