3 years ago

The difference of 3 times a number and 20 is greater then 10

1 answer:

3 0

If the number is x, then 3 times x -20 >10 and 3x-20>10. Adding 20 to both sides, we get 3x >30 and by dividing by 3 we get x >10

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3/4 + 1/2 times 2 please help thanks

Harlamova29_29 [7]

Answer:

7/4

Step-by-step explanation:

1/2 x 2 = 1

3/4 + 1 = 7/4 or 1 3/4

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2 years ago

Which number is larger -3.4 or -3 1/2 (BTW this is a fraction)? How will graphing these numbers on a number line help you determ

valkas [14]

Answer:

-3.4

Step-by-step explanation:

negative numbers are reverse counting on the line graph.

-3 1/2 is -3.5

-3.4 VS. -3.5

since it is reverse, -3.4 is greater

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3 years ago

The formula for the surface of a cube is s 6s^2 where x is the length of one side. Find the length of the side of a cube with a

Advocard [28]

X=side length
6x^2 = surface area = 150
x^2 = 150/6=25
x=sqrt(25)=5

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3 years ago

the actual distance between 2 cities is 135 km. the map scale is 1 cm : 100 km. find the map distance

Fantom [35]

It would be 1.35 cm on the map

8 0

2 years ago

Please help me question attached below:)))

atroni [7]

Answer:

D(5, 4), E(14, 7), M(9.5, 5.5)

Step-by-step explanation:

As AD = 1/4AB and DE ║ AC, the ratio CE/CB = 1/4, or CE = 1/4CB

Find the coordinates of D:

x = 1 + 1/4(17 - 1) = 1 + 4 = 5
y = 5 + 1/4(1 - 5) = 5 - 1 = 4

Find the coordinates of E:

x = 13 + 1/4(17 - 13) = 13 + 1 = 14
y = 9 + 1/4(1 - 9) = 9 - 2 = 7

Find the coordinates of the midpoint M of DE:

x = (5 + 14)/2 = 19/2 = 9.5
y = (4 + 7)/2 = 11/2 = 5.5

8 0

2 years ago