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Mekhanik [1.2K]
2 years ago
6

Use the quadratic formula to write a quadratic equation has a solution x=2+-4/-2

Mathematics
1 answer:
7nadin3 [17]2 years ago
5 0
Solve the rational equation by combining expressions and isolating the variable
x
x
.
x
=
41
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At what rate did the rain fall?
Levart [38]

Answer:

2 cm per hour

Step-by-step explanation:

1 hour lines up with 2cm

2 hours line up with 4cm

3 hours line up with 6cm

6 0
2 years ago
Read 2 more answers
Nick's Printing Press promptly sold 5-cent pencils and 10-cent pens to the public. It sold 1000 writing utensils and took $74.50
galben [10]

Answer:

  • 490 pens
  • 510 pencils

Step-by-step explanation:

Let p represent the number of pens Nick sold. Then the revenue is ...

  0.10p +0.05(1000 -p) = 74.50

  0.05p = 24.50 . . . . . . eliminate parentheses, subtract 50

  p = 490 . . . . . . . . . . . . multiply by 20

The number of pencils sold is then ...

  pencils = 1000 -490 = 510

Nick's Printing Press sold 490 pens and 510 pencils.

4 0
3 years ago
Need help again math 7th grade ​
Olenka [21]

Answer: 1/2 as a fraction

.5 as a decimal

Step-by-step explanation: The probability of them rolling a number would be 3/6 or simplified 1/2 because if there is a 6 sided dice the denominator would be 6 and there are 3 odd numbers on the dice which are 1,3,and 5 so if u have to simplify it would be 1/2 if not 3/6. Also 1/2 as a decimal would be .5

4 0
2 years ago
Read 2 more answers
On a california map 1/4 of an inch represents 20 miles how many miles does 3 1/4 inches represent
yulyashka [42]
240 miles
I hope that helps
4 0
3 years ago
I WILL MARK BRAINIEST<br> PLEASE HELP ASAP ITS DUE
Daniel [21]

Answer:

A) 1 : 4

B) 1 : 2

C) Base of M = 10 units

Step-by-step explanation:

A)

The ratio of the area of triangle M to triangle N

\frac {40}{160}= \frac{1}{4} = 1 : 4

B)

The ratio of the side lengths of triangle M to triangle N

\sqrt{ \frac {40}{160}} = \sqrt{\frac{1}{4}} \\\\={\frac{1}{2}} \\\\=1 : 2

C) Let the base of triangle M be b units.

\sqrt{ \frac {40}{160}} = \frac{b}{20}\\\\\frac{1}{2}=  \frac{b}{20}\\\\2b = 20\\\\b = \frac{20}{2} \\\\b = 10

8 0
2 years ago
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