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spayn [35]
3 years ago
11

WILL GIVE BRAINLY PLUS FIFTY POINTS!!! :D

Mathematics
2 answers:
VARVARA [1.3K]3 years ago
6 0
The first expression is correct
polet [3.4K]3 years ago
4 0

Answer:

18 - (-12)

Step-by-step explanation:

Take the final temperature and subtract the initial temperature to find the change in temperature

18 - -12

18 - (-12)

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Step-by-step explanation:

Let there be x blue ribbons

\therefore \:  \frac{1}{5}  +  \frac{7}{15}  + x = 36 \\   \therefore \:  \frac{1 \times 3}{5 \times 3}  +  \frac{7}{15}  + x = 36 \\ \therefore \:  \frac{3}{15}  +  \frac{7}{15}  + x = 36 \\ \therefore \:  \frac{3 + 7}{15}   + x = 36 \\ \therefore \:  \frac{10}{15}   + x = 36 \\ \therefore \: x = 36 -  \frac{10}{15} \\ \therefore \: x =  \frac{36 \times 15 - 10}{15} \\ \therefore \: x =  \frac{540 - 10}{15} \\ \therefore \: x =  \frac{530}{15} \\ \therefore \: x =  35\frac{5}{15}  \\ \\  \therefore \: x =  35\frac{1}{3} \: are \: blue.  \\

5 0
4 years ago
Three months after Carla started ninth grade, her hair was 14 inches long. Hair grows about 12 inch per month. Which equation sh
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Step-by-step explanation:

4 0
4 years ago
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Please help <br><br>must show work ​
hjlf

Answer:

b) y=2x-3 y-int.=-3 x= 1/2 (think of rise over run)= up 2 over 1. C) IDK D) y=2/4+3 E)7/2-8

Step-by-step explanation:

<h2>when you solve in slope intercept form ex. 3x+4y=12 move 3x by subtracting  to the other side. 3x-3x=0 cancel then your left with 4y=-3 (you moved to both sides)+ 12  divide the equation by 4. left with 4divided by 4 cancels left with y= -3+12 divided by 4= y=3/4+8</h2><h2 /><h2>Remember if positive subtract if negative number add to both sides.</h2>
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3 years ago
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