3 years ago

Solve for x: −1 < x + 3 < 5

Mathematics

1 answer:

Inessa05 [86]3 years ago

3 0

Answer:

-4<x<2

Step-by-step explanation:

the picture is the steps

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Is the answer right?

notsponge [240]

Answer:

one solution.. your answer is correct

Step-by-step explanation:

discriminate = 900 - (4*9*25) = 0

thus only one solution

8 0

2 years ago

Read 2 more answers

There are 10 red marbles and 20 green marbles in a bag. Colleen says the ratio of red marbles to green marbels is 19 to 20. Frit

nadezda [96]

Fritz is correct, in that the ratio is 1:2

Think of the ratio as a division

10:20 = 10/20

When you divide 10 with 20, you will get a decimal (or simplified fraction)

10/20 = 0.5

0.5 = 50 percent, or 1:2

Fritz is correct, in that 1:2 is the ratio

hope this helps

6 0

3 years ago

Read 2 more answers

Charlie measured his room and found that it was 10 1/2 feet in length and 7 1/4 feet wide. His brother's room has the same width

ozzi

Answer:

Length of Charlie's brother's room = 8 2/5 feet

Area of Charlie's brother's room = 60 9/10 feet²

Step-by-step explanation:

Width Charlie's room = 7 1/4 = (7 x 4 +1)/4 = 29/4 feet

Length Charlie's room = 10 1/2 = (10 x 2 +1)/2 = 21/2 feet

Length brother's room = 4/5 x 21/2 = (4 x 21)/(5 x 2) = 84/10 = 8 2/5 feet