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3 years ago

Solve for a. 2 + 2a ≥ 6

Mathematics

2 answers:

GaryK [48]3 years ago

8 0

$2 + 2a \geqslant 6$

$2 - 2 + 2a\geqslant 6 - 2$

$2a \geqslant 4$

$\frac{2a}{2} \geqslant \frac{4}{2}$

$a \geqslant 2$

andre [41]3 years ago

5 0

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable

Interval Notation:

2,ထ

Inequality Form:

a≥2

Step-by-step explanation:

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Mazyrski [523]

Answer: 23/18

Step-by-step explanation:

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3 years ago

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UNO [17]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

Jamaal is allowed to walk no farther than three blocks in either direction from his house. If his house is located on the 57th b

Anna71 [15]

Answer:

|x – 57| = 3

Step-by-step explanation:

let x be the farthest block to which Jamaal is allowed to walk.

the statement “Jamaal is allowed to walk

no farther than three blocks in either direction from his house.”

means

the distance between the 57th block and the farthest block = 3

means

|x – 57| = 3

3 0

2 years ago

What is the mean absolute deviation of this data set of 82,84,84,87,88,90,90,92

Nana76 [90]

Answer:

Average value: 87,125

Step-by-step explanation:

(82,84,84,87,88,90,90,92) ↔ 8

(82+84+84+87+88+90+90+92)/8 = 697/8 = 87,125

5 0

3 years ago

Two cars leave at the same time from points A and B, the distance between them is 280 km. If the cars meet each other, they’ll m

kykrilka [37]

Set up the following equations:

$2x + 2y = 280$

$14x - 14y = 280$

x represents car A's speed, and y represents car B's speed.

We'll use elimination to solve this system of equations. Multiply the first equation by 7:

$(2x + 2y = 280) * 7 = 14x + 14y = 1960$

$14x - 14y = 280$

Combine both equations:

$28x = 2240$

Divide both sides by 28 to get x by itself:

$x = 80$

The speed of car A is 80 mph.

Since we now know the value of one of the variables, we can plug it into the first equation:

$2(80) + 2y = 280$

$160 + 2y = 280$

Subtract 160 from both sides.

$2y = 120$

Divide both sides by 2 to get y by itself:

$y = 60$

The speed of car B is 60 mph.

7 0

4 years ago