Mathematics, 05.05.2020 14:58 acalvario2019

Mateo read the thermometer this evening. The temperature was 52 degrees. This temperature was 3 degrees less than the temperature in the afternoon. The afternoon temperature was 21 degrees greater than the temperature in the morning. What was the temperature in the morning?

Answers: 3

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Answer from: Answers4833

The temperature in the morning was 34 degrees.

Step-by-step explanation:

I am going to attribute a variable to each of these tempertures, and build the equations.

Mateo read the thermometer this evening. The temperature was 52 degrees.

I am going to call the evening's temperature x.

So x = 52.

This temperature was 3 degrees less than the temperature in the afternoon.

I am going to call the afternoon's temperature y.

x = y - 3

52 = y - 3

y = 52 + 3

y = 55

The afternoon temperature was 21 degrees greater than the temperature in the morning.

The morning's temperature is z.

y = 21 + z

55 = 21 + z

z = 34

The temperature in the morning was 34 degrees.

Answer from: kkartes753

$T_{2} = 34\,^{\textdegree}F$

Step-by-step explanation:

The temperature in the afternoon was:

$T_{1} = 52\,^{\textdegree}F + 3\,^{\textdegree}F$

$T_{1} = 55\,^{\textdegree}F$

Lastly, the temperature in the morning was:

$T_{2} = 55\,^{\textdegree}F-21\,^{\textdegree}F$

$T_{2} = 34\,^{\textdegree}F$

Answer from: Quest

answer:

payment just for service

→

87.12

payment for service including tax

→

94.09

explanation:

service only with 20% tip

→

72.6

(

100

)

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the

service

−−−−−−

so technically the answer is

→

72.6

(

100

)

87.12

however, the intention of the question provider may have been that your answer is to be

87.12

(

100

)

94.09

to 2 decimal places.

payment just for service

→

87.12

payment for service including tax

→

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge

→

72.60

20% tip

100

72.60

14.52

−−−−−−

←

add

87.12

tax

100

87.12

6.97

−−−−−

←

add

94.09

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