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3 years ago

How many eighty- fours are in 672?

Mathematics

1 answer:

ryzh [129]3 years ago

4 0

672/84= 8 (answer)

there are 8 84s in 672

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Answer:

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Step-by-step explanation:

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3 years ago

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The solutions for cos^2 x - cos 2x =0, over the domain 0 < x < 2π are

Reika [66]

D because it helps better and explains better and makes most sense

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3 years ago

+ 2h + 5 when g = 3 and h = 6.

Rudik [331]

Is this the whole problem because I don’t see a “g”
Anywhere I’m the problem

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3 years ago

Scott earned 20 points more on his most recent math test than he earned on the previous test. If he earned at least 80 points on

NARA [144]

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Answer:

s ≥ 60

Step-by-step explanation:

If Scott earned 20 points more on this test, then he earned 20 points less on the last test. 20 points less than "at least 80" is "at least 60."

s ≥ 60

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3 years ago

Find the solution of the system by graphing

zvonat [6]

Answer:

x = -2

y = -1

(-2, -1)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
Equality Properties

Algebra I

Solving systems of equations using substitution/elimination
Solving systems of equations by graphing

Step-by-step explanation:

Step 1: Define systems

y = x + 1

3x + 3y = -9

Step 2: Solve for x

Substitution

Substitute in y: 3x + 3(x + 1) = -9
Distribute 3: 3x + 3x + 3 = -9
Combine like terms: 6x + 3 = -9
Isolate x term: 6x = -12
Isolate x: x = -2

Step 3: Solve for y

Define original equation: y = x + 1
Substitute in x: y = -2 + 1
Add: y = -1

Step 4: Graph systems

Check the solution set.

6 0

3 years ago