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Umnica [9.8K]
3 years ago
6

Monday's high temperature was six degrees Celsius the low temperature was -3°C

Mathematics
1 answer:
Allisa [31]3 years ago
8 0
What's the question?
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Whats the value of x? 3x - 5(x - 5) = -7 + 2x + 12
Katena32 [7]

Answer:

x=5 :)

Step-by-step explanation:

7 0
3 years ago
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-2(x+5)=4 Can someone explain I need an one number answer.
Irina18 [472]

Answer:

7

Explanation:

−

2

x

+

10

=

−

4

take 10 from both sides

−

2

x

=

−

14

divide both sides by -2 to find x

x

=

7

Step-by-step explanation:

7 0
2 years ago
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Is 45.07 x 3.25 an overestimate
vitfil [10]

Answer:

No i dont think it is

Step-by-step explanation:

srry if im wrong :C

8 0
3 years ago
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The variable z is directly proportional to x. When x is 11, z has the value 44. What is the value of z when x = 21?
dimulka [17.4K]

Directly proportional, both increase/decrease, Multiple k(constant you needed to solve for)..

Inversely --one increases as the other decreases, increase the denominator & fraction gets smaller.... So

Problem:

Dirextly to X (× by X)

Inversely to Y, (÷ by Y)

Z= k X/Y

Solve, working backwards: Z =5 becomes

5 = k (X) ÷ (Y). And

X=15 and Y =9 becomes

5= k(15)/(9). Undo ÷9, ×9 both sides

45= k(15). Now undo ×15 by ÷15 both sides

45/15 = 3. So k=3, (also called your constant of variation)....and your Equation/Proportion becomes...

Z = 3X/Y

Use the new #s.... X=23, Y=14

Z= 3×23÷14 = 69/14. If they want spirochete answer divide and round to corresponding # if decimals

4 0
3 years ago
What does 21÷3+(3×9)×9+5 equal? show work below plz
igor_vitrenko [27]
3x9=27
21/3 = 7
so
7+27x9+5
27x9=243
243+7+5
answer is 255
6 0
3 years ago
Read 2 more answers
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