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Zielflug [23.3K]

3 years ago

10

In a family,the ages of children arranged from the youngest to the oldest are 2,6,y,14 and z.if the sequence of the ages is in a

n arithmetic progressions what is the ratio z:y

1 answer:

elena-14-01-66 [18.8K]3 years ago

5 0

Answer:

9/5

Step-by-step explanation:

The common difference = 6 - 2 = 4

The age after 6 is 6 + 4 = 10 = y

The age after 14 is 14 + 4 = 18 = z

z/ y = 18/10 = 9/5

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Solve |2x + 1| = 10<br> {9/2, 11/2}<br> {-9/2, 9/2}<br> {-11/2, 9/2}

prisoha [69]

The answer is -11/2, 9/2

Explanation

You have to rewrite the absolute value equation as two separate equations.
2x+1=10
2x+1=-10

Then you solve for X in each equation.
2x+1=10 would give you 9/2

2x+1=-10 would give you -11/2

So your final solutions would be x1= -11/2 x2= 9/2

6 0

3 years ago

There are 75 students enrolled in a camp. The day before the camp begins, 8% of the students cancel. How many students actually

8090 [49]

Answer:

69 students attend the camp

Step-by-step explanation:

8% of 75 = 6

75 - 6 = 69

6 0

3 years ago

Read 2 more answers

PLEASE HELP !?!????!?

miss Akunina [59]

Answer: Supplementary Angles

Step-by-step explanation:

Supplementary angles are a pair of angles whose sum is 180°. 45° and 135° add up to 180°. Therefore, the answer is supplementary angles.

4 0

2 years ago

If f(x) = -2x^2 + x–5, what is f(3)?

yan [13]

Answer:

-20

Step-by-step explanation:

Replace X by 3

f(3) = -2(3)^2+ (3)-5 = -20

7 0

3 years ago

What’s 3х + 7>4х +2

Kipish [7]

Answer:

$x < 5$

Step-by-step explanation:

$3x + 7 > 4x + 2 \\ 7 - 2 > 4x - 3x \\ 5 > x$

$x < 5$

6 0

3 years ago