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dalvyx [7]
3 years ago
8

can someone fill in the blanks for me I'm doing a vocab test on math so plz help thx brainliest awarded

Mathematics
2 answers:
777dan777 [17]3 years ago
8 0

Answer:

15 - Given a system of two equations, we can produce an equivalent system by replacing one equation by the sum of the two equations, or by replacing an equation by a multiple of itself.

16 - It tells us that two expressions mean the same thing, or represent the same number. An equation can contain variables and constants.

17 - Commutative Properties

Step-by-step explanation:

irga5000 [103]3 years ago
5 0

Answer:

i gotchu babe lol,

14.Associative Property

15. equivalent systems

16. equation

17.Commutative Property

Step-by-step explanation:

i love you so much, i hope this helps you babe.

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This sign is 50 centimeters high and 40 centimeters along the base. What is it’s area?
zhuklara [117]

height =50

base=40

area of triangle =1/2b*h

1/2*40*50

1000

6 0
2 years ago
The summer has ended and it’s time to drain the swimming pool. 20 minutes after pulling the plug, there is still 45 000L of wate
WITCHER [35]

Answer:

  a) -900 L/min

  b) 63000 L

  c) v = -900t +63000

  d) 7200 L

Step-by-step explanation:

a) You are given two points on the curve of volume vs. time:

  (t, v) = (20, 45000) and (70, 0)

The rate of change is ...

  Δv/Δt = (0 -45000)/(70 -20) = -45000/50 = -900 . . . . liters per minute

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b) In the first 20 minutes, the change in volume was ...

  (20 min)(-900 L/min) = -18000 L

So, the initial volume was ...

  initial volume -18000 = 45000

  initial volume = 63,000 . . . . liters

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c) Since we have the slope and the intercept, we can write the equation in slope-intercept form:

  v = -900t +63000

__

d) Put the number in the equation and do the arithmetic.

When t=62, the amount remaining is ...

  v = -900(62) +63000 = -55800 +63000 = 7200

7200 L remain after 62 minutes.

6 0
3 years ago
What is 1/8 times 3/4
Serga [27]
Hi there

1/8 * 3/4

Remember: When you are multiply two fractions together all you have to do is multiply the numerator by the denominator.

Answer : 3/32

I hope that's help !
4 0
3 years ago
I need help if y’all want y’all can help me I need help
Snezhnost [94]

The answer is D. 42

A triangle equals 180 in total so what you would do it subtract 122 from 180 because 180 is also the angle of a straight line. You would get 58 then you add 58 and 80 to get 138. Subtract 138 from 180 and you get your answer of 42

6 0
3 years ago
Which system of inequalities is shown here? Help me ASAP please):
shusha [124]

the answer is A

hope this helps :)

5 0
3 years ago
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