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forsale [732]
2 years ago
9

A : 98 B : 31.1 C : 14 D : 9.9 Please help :(

Mathematics
1 answer:
irina [24]2 years ago
4 0

Hope you could understand.

If you have any query, feel free to ask.

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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
3 years ago
A liquid substance was left at the scene of the crime. Krisann uses a beaker that measures to the nearest tenth of a liter and f
AVprozaik [17]
4.85 <= x < 4.95 .  does not intersect x > 5.No it does not need to be sent to the lab. B.
<span>yes, since the beaker meaures to the nearest tenth of a liter , the range of the actual value is plus or minus 0.1 liters , which means there could be up to 5 liters of the substance </span>
8 0
3 years ago
A department store has a discount on all shirts based on a percentage of the price. Suppose one shirt is marked down from $60 to
vlabodo [156]

Answer:

Step-by-step explanation: 45

6 0
3 years ago
Read 2 more answers
What is (-14-x) squared in polynomial form?
Masteriza [31]
(-x-14)^2 = x^2 +14x+14x+196
which turns into x^2+28x+196.
hope this helps 
and give thanks 
6 0
3 years ago
If f(x) =2x and g(x) = cos(x) then g(f(π/2)) = ?<br> Number 2 in picture
Romashka [77]

Answer:

(4) -1.

Step-by-step explanation:

First evaluate f(π/2) which is 2 * π/2 = π.

So g(f(π/2)) = g(π)

= cos π

= -1.

6 0
3 years ago
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