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vaieri [72.5K]
3 years ago
13

The outdoor temperature was 60 degrees at midnight. The temperature went down 3 degrees each hour for the next 4 hours. What was

the temperature at 4 AM
Mathematics
1 answer:
12345 [234]3 years ago
8 0
3 x 4(hours) = 12
60 - 12 = 48
At 4am the temperature was 48 degrees
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Choose all of the equivalent ratios for 64:80<br> 8:12<br> 32:40<br> 4:5<br> 16:24<br> 120:160
Alinara [238K]

Answer:

32/40, 4/5

Step-by-step explanation:

All these ratios are follow the ratio 4:5 meaning they are equivalent to "64:80".

8:12=0.666667

16"24=0.666667

120:160=0.75

5 0
2 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bw%7D%7B%20-6%7D%20%20%3D%206" id="TexFormula1" title=" \frac{w}{ -6} = 6" alt="
AfilCa [17]
Answer : w = (-36)
By transposition method -6 when transposed to the other side it becomes multiplication which will be w = 6*(-6)
= w = (-36)
3 0
3 years ago
Read 2 more answers
EF is the median of trapezoid ABCD.
BARSIC [14]

Answer:

Part A) x = 11

B) length of BC =  x + 12 =  x + 12 = 11 + 12 =23

length of EF =  4x - 18 =  4(11) - 18 = 44 - 18 =26

length of AD =  3x - 18 =  3(11) - 4 = 33 - 4 =29

Step-by-step explanation:

Median of trapezium is m=\frac{base1+base2}{2}

In provided figure, base1 is x+12 and base2 is 3x-4

A) solve for value of x

calculate the median m=\frac{base1+base2}{2}

4x-18=\frac{x+12+3x-4}{2}

4x-18=\frac{4x+8}{2}

4x-18=2x+4

2x-18=4

2x = 18 + 4

2x = 22

x = 11

B) To find the length of BC, AD and EF , put the value of x in equation of lines

length of BC =  x + 12 =  x + 12 = 11 + 12 =23

length of EF =  4x - 18 =  4(11) - 18 = 44 - 18 =26

length of AD =  3x - 4 =  3(11) - 4 = 33 - 4 =29

5 0
3 years ago
Add or subtract as indicated and write the result in standard form. 5i - (-5 - i)
AlexFokin [52]

Simplify by combing the real and imaginary parts of each expression.

5 + 6i

Arrange the expression into the a+bi form of a complex number.

5+ 6i

5 0
3 years ago
Nine less than three times a number is greater than forty
pentagon [3]
Start with an equation.
Nine less... so -9
3 times a number = 3x
Greater than 40 is >40

So put together is 3x-9>40
When solving I imaging the greater than sign as an equal sign. Less confusing.
3x-9=40
3x=49
x>49/3
7 0
2 years ago
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