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olganol [36]
3 years ago
7

The price of a calculator has decreased from

Mathematics
2 answers:
leva [86]3 years ago
6 0

im pretty sure its b 25 percent
NeTakaya3 years ago
4 0
Decrease = New number - Original Number

% Decrease = \frac{Decrease}{Original~number} × 100

Decrease = 9 - 12 = -3

% Decrease = \frac{-3}{12} = -0.25 × 100 = -25

Your answer = -25
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Can someone help me with these please.
ELEN [110]

Answer: Barbara did not include a variable in the term 1.49, which must represents the number of bottles of iced tea she needs to sell.

Step-by-step explanation:

Let be "x" the number of bottle of water Barbara needs to sell and "y"  the number of bottle of iced tea she needs to sell.

She sells iced tea for $1.49 per bottle and water for $1.25 per bottle, so she can write the following equation in order to calculate the number of bottles she needs to sell to earn $100:

1.25x + 1.49y = 100

Since Barbara wrote this equation:

1.25x + 1.49 = 100

We can conclude that the error Barbara made in writing the equation was: She did not include a variable in the term 1.49, which must represents the number of bottles of iced tea she needs to sell.

8 0
4 years ago
joni made a down payment of 1,600 on a car. that was 20% of the total price. what was the total price?
Alja [10]
Let t represent "total price."  Then 0.20t = $1600, and t = $1600/0.20 =
$8000 (answer)
4 0
3 years ago
Read 2 more answers
Ten people from a local youth group went to black hills whitewater rafting tour company for a one day rafting trip. the group pa
ICE Princess25 [194]

42.5p=c

You get you get the number 42.5 since you know 10 people paid 425, you would divide 425 by 10 to know how much every person paid.

M is representing the amount of money each person paid

(M)10=425
M=425/10
M=42.50 <- since it’s about money

Each person paid $42.50


The cost for 15 people is $637.50.

42.5p=c
42.5(15)=637.5
6 0
3 years ago
Last question for today ✌
miv72 [106K]

Answer:

I think it is D

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The seventh grade wants to break last year’s record of 78 coats collected for the annual clothing drive. They have already colle
Dimas [21]

Answer:

c + 13c ≥ 78c

78c - 13c =

65c

8 0
3 years ago
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