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jonny [76]
3 years ago
9

Think About the Process You have 20 quarters. You find 40% more quarters in your room. Then

Mathematics
1 answer:
Sladkaya [172]3 years ago
3 0

Answer:

A. 1.4*20 quarters

B.14

Step-by-step explanation:

A: 1.you start with 20 quarters= 20*1

2.you find 40% of twenty quarters in your room= 4/100*20=0.4*20

3.20*1+20*0.4= 20*1.4

B:20*1.4=28

28*50/100=14

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2 years ago
When you went to sleep, the temperature was −2.8°C.
galben [10]

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3 years ago
PLEASE HELP ME SOLVE THIS!<br> GIVING ALL MY POINTS!
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2 years ago
Suppose f '' is continuous on (−[infinity], [infinity])
Angelina_Jolie [31]

Answer with Step-by-step explanation:

We are given that a function f(x) is continuous on (-\infty,\infty).

1.f'(-1)=0 and f''(-1)=-7

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Therefore, at x=-1, f has local maximum.

Answer:a)at x=-1 ,f has local maximum.

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4 0
2 years ago
Lucy wants to be exempt from her semester exam. In order for that to happen, she has to average an 85 over 3 test grades. Her fi
anastassius [24]

Answer:

<em>Grades to be scored in 3rd exam = 88</em>

Step-by-step explanation:

Given that average of 3 numbers is 85.

First two numbers are 81 and 86.

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Solution:

Let the third number = x

Formula for average is:

Average = \dfrac{Sum\ of\ numbers}{Total\ count\ of\ numbers}

Here, sum of numbers = 81+86+x =167+x

Total count of numbers = 3

85 = \dfrac{167+x}{3}\\\Rightarrow x=255-167\\\Rightarrow \bold{x=88}

<em>Grades to be scored in 3rd exam = 88</em>

8 0
3 years ago
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