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Ber [7]
3 years ago
9

Enter an algebraic expression to model the given context. Give your answer in

Mathematics
1 answer:
rosijanka [135]3 years ago
3 0

Answer:30

Step-by-step explanation:

first step is to do when you do this is pay with 20

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What is 2 3/4 + -2 1/2
zimovet [89]

Answer:

1/4 or 0.25

Step-by-step explanation:

I did this on a graphic calculator so i can't really explain, but I hope this helps! :)

3 0
3 years ago
Carl bought 19 apples of 2 different varieties to make a pie.The total cost of the apple was $5.10.Granny Smith apples cost $0.2
disa [49]

For this case we propose a system of equations:

x: Let the variable representing the quantity of Granny Smith apples

y: Let the variable representing the number of Gala apples

According to the statement we have:

x + y = 19\\0.25x + 0.30y = 5.10

From the first equation we have to:

x = 19-y

replacing in the second equation:

0.25 (19-y) + 0.30y = 5.10\\4.75-0.25y + 0.30y = 5.10\\4.75 + 0.05y = 5.10\\0.05y = 5.10-4.75\\0.05y = 0.35\\y = \frac {0.35} {0.05}\\y = 7

So, Carl bought 7 Gala apples

On the other hand:

x = 19-7 = 12

So, Carl bought 12 Granny Smith apples

Answer:

Carl bought 7 Gala apples and 12 Granny Smith apples

8 0
3 years ago
Una caja de fideos de 7.2 onzas a 0.67 o una caja de fideos de 13 onzas a 1.28 cual tiene el mejor precio
uysha [10]

Answer:

The first one. Brainly is also in spanish

4 0
3 years ago
Which equation best represents the relationship?
Agata [3.3K]

Answer: (C) C=\frac{5}{9}(F-32)

Explanation:

The difference between the degrees in Fahrenheit and the constant 32 corresponds to the expression in brackets (F-32).  The fraction 5/9 of that difference completes the expression: (5/9)(F-32) and gives the degrees Celsius.

4 0
3 years ago
Can someone please answer. There is one problem. There is a picture. Thank you!
jonny [76]
SA=4pir^2
78.54km^2=SA
78.54=4pir^2
divide both sides by 4
19.635=pir^2
aprox pi=3.14 so divide both sides by 3.14
6.25318=r^2
sqrt both sides
2.50063=r
round
radius=2.5km

this question is flawed in that it gives the wrong units

answer is the option with 2.5 in it
2nd one
5 0
3 years ago
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