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Semenov [28]
3 years ago
9

Can you please help me with Questions #18-22 on this Math Worksheet

Mathematics
1 answer:
CaHeK987 [17]3 years ago
3 0

21. 4x+4y
22. 16 girls
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Solve the following equation.<br> Round to the nearest tenth.<br> 7x - 1 = 1 3x - 8.9
patriot [66]

Answer:

x=1.3

Step-by-step explanation:

7x-1=13x-8.9

7x-13x= -8.9 +1

-6x= -7.9

x= 79/70

or

x=1.3

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20/60+15/60=35/60&gt;<br> What dose it equal
stepladder [879]

Answer:

\dfrac{7}{12}

Step-by-step explanation:

1. Find the Greatest Common Factor of the numerator and denominator.

The prime factors of 35 are             <u>5</u>,     7,                              35  

The prime factors of 60 are 2, 3, 4, <u>5</u>, 6,     10, 12, 15, 20, 30,      60

The only common factor of 35 and 60 is 5.

2. Divide the numerator and denominator by the Greatest Common Factor.

\dfrac{35}{60} = \mathbf{\dfrac{7}{12}}

8 0
3 years ago
The united states mint released five state quarters every year. there are 50 states. How many years did it take for all 50
Gekata [30.6K]
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