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exis [7]
3 years ago
11

Plz help! Write the equation in standard form using integers. y+4=4/5(x+6)

Mathematics
1 answer:
levacccp [35]3 years ago
4 0
Y = 4/5(x + 6) - 4
y = 4/5x + 4.8 - 4
y = 4/5x + 0.8
4/5x - y = 0.8
Multiply by 5
Solution: 4x - 5y = 4
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45% of the class is girls. There are 90 girls in the class. How many students are<br> in the class?
Stels [109]

Answer:

189

Step-by-step explanation:

45% x2= 90%

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sorry if I'm wrong I'm trying

8 0
3 years ago
Pumps A, B, and C operate at their respective constant rates. Pumps A and B, operating simultaneously, can fill a certain tank i
shepuryov [24]

Answer:D) 1 hr

Step-by-step explanation:

Given

Pump A and B can fill tank in \frac{6}{5} hr

Pump A and C can fill tank in \frac{3}{2} hr

Pump B and C can fill tank in 2 hr

Let A be the total hr taken A therefore rate of A=\frac{1}{A} /hr

Let B be the total hr taken B therefore rate of B=\frac{1}{B} /hr

Let C be the total hr taken C therefore rate of C=\frac{1}{C} /hr

\frac{1}{A}+\frac{1}{B}=\frac{5}{6}-----1

\frac{1}{B}+\frac{1}{C}=\frac{1}{2}-----2

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Adding 1,2 & 3

2(\frac{1}{A}+\frac{1}{B}+\frac{1}{C})=\frac{5}{6}+\frac{1}{2}+\frac{2}{3}

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thus time taken by A,B and C combined is 1 hr

7 0
3 years ago
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My name is Ann [436]

Answer:

  B:  2⁷-1 = 127

Step-by-step explanation:

A Mersenne prime is a prime of the form 2^n -1, where n is also a prime.

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  2⁷-1 = 127 is a Mersenne prime

3 0
3 years ago
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aalyn [17]

Answer:

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7 0
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