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azamat
3 years ago
11

The temperature of a city changed by −15 degrees Celsius over a 5-week period. The temperature changed by the same amount each w

eek. Part A: Write an expression to show the average change in the temperature of the city each week. Part B: Simplify the expression and explain, using words, what your answer means.
Mathematics
1 answer:
tankabanditka [31]3 years ago
5 0
Do you just wan't us to answer it or give you an explanation?
boogy
2 years ago
whatever your heart desires as long as you show your work. Thanks
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The answer is 27 because there isn't enough bars of soap to have 2 in each package
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3 years ago
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tim measures a water tower (cylinder) with the circumference of 62.8cm and height of 11.5cm, in his town a person needs 300cm3 o
miss Akunina [59]

Answer:

about 12 people

Step-by-step explanation:

cir.=2πr=62.8 , so r=31.4/π , vol of tower= base area × hight = πr² × 11.5 ≈ 3609.17 cm³ , number of people= vol/300 ≈ 12

7 0
3 years ago
Joe is saving money for his
tatyana61 [14]

Answer:

He will need to save $295

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2 years ago
Use substitution to solve the following system of equations. What is the value of y? {3x+2y=12{5x−y=7 A) y = -3B) y = 3C) y = -2
Vlad [161]

<em>Answer</em>

B) y = 3

<em>Step-by-step explanation</em>

Given the system of equations:

\begin{gathered} 3x+2y=12\text{ \lparen eq. 1\rparen} \\ 5x-y=7\text{ \lparen eq. 2\rparen} \end{gathered}

Isolating x from equation 1:

\begin{gathered} 3x+2y-2y=12-2y \\ 3x=12-2y \\ \frac{3x}{3}=\frac{12-2y}{3} \\ x=\frac{12}{3}-\frac{2}{3}y \\ x=4-\frac{2}{3}y\text{ \lparen eq. 3\rparen} \end{gathered}

Substituting equation 3 into equation 2 and solving for y:

\begin{gathered} 5(4-\frac{2}{3}y)-y=7 \\ 5\cdot4-5\cdot\frac{2}{3}y-y=7 \\ 20-\frac{10}{3}y-y=7 \\ 20-\frac{13}{3}y=7 \\ 20-\frac{13}{3}y-20=7-20 \\ -\frac{13}{3}y=-13 \\ (-\frac{3}{13})\cdot-\frac{13}{3}y=(-\frac{3}{13})\cdot-13 \\ y=3 \end{gathered}

6 0
1 year ago
The length of a new rectangular playing field is 5 yards longer than double the width. if the perimeter of the playing field is
Elena L [17]
The answer is 59.6 because I divided 298 by 5
Hope this helps!!
5 0
3 years ago
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