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andriy [413]
3 years ago
15

What is 2×(-5)-(-8)=? cause I need the answer for something rlly bad

Mathematics
1 answer:
shepuryov [24]3 years ago
6 0
The answer to this is -2
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The amount of money raised at a charity fundraiser is directly proportional to the number of attendees. The amount of money rais
sattari [20]

Answer:

a. M=20A

b. k=20

c. $1200

Step-by-step explanation:

<u>Direct proportions </u>

Two variables are proportional if one of them is the other by a real number. That real number is called the Constant of proportionality. If x and y are proportional, then

y=kx, where k is the constant of proportionality.

The question describes the relationship between the amount of money raised at a charity fundraiser and the number of attendees. If they have five attendees, they raise $100

a.

Let's call A the number of attendees and M the amount of money raised, and

M=kA

We know that M=100 when A=5, so

100=k(5)

This means that  

k=20

The equation for the amount raised at the charity event is

M=20A

b.

The constant of variation is k=20

c. If there are 60 attendees (A=60), then

M=(20)(60)=$1200

4 0
3 years ago
I need help pleaseee
lidiya [134]

Answer:

I would say it is c

Step-by-step explanation:

Because x is on the negative so that would have to be -x then and the y number is posiitiv  so it is y = -x + 4  

6 0
3 years ago
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At a book fair a tote bag costs $5 and books cost $3.50 each . You spend a total of $19 before taxes .How many books did you buy
sashaice [31]
4 books . if you do 19-5 that will be 14 and 14 divided by 3.5 will give you 4
8 0
3 years ago
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Como é que chega no gabarito D?
Reptile [31]

Não tenho certeza do que você está pedindo, por favor, seja mais específico. ~ Outono

5 0
3 years ago
You deposit $70 in a savings account that pays an annual interest rate of 30%. How much simple interest would you earn in 2.5 ye
blagie [28]
The formula is
I=prt
I interest earned?
P principle 70
R interest rate 0.3
T time 2.5 years
I=70×0.3×2.5
I=52.5
4 0
3 years ago
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