Ask question

Ask question

All categories

4 years ago

6

chelsea has four hours of free time on saturday. she would like to spend no more than 2/3 of an hour on each activity. how many

activites can she do during that time? justify your procedure.

1 answer:

lapo4ka [179]4 years ago

8 0

The answer is 6 different activities

You might be interested in

2. Out of 35 students participating in a debate, 10 are girls. The probability that winner is a boy is: a)1/7 b)3/7 c)4/7 d)5/7

Gnoma [55]

Answer: d) 5/7

Step-by-step explanation:

10 out of 35 of the students are girls. The number of boys is therefore:

= 35 - 10

= 25 boys

Probability that the winner is a boy is:

= 25/35

Take that fraction to the simplest by dividing both by 5:

= 5/7

3 0

3 years ago

Population of fruit flies has a mean life span of 46 days with a standard deviation of 6.2 days. If a sample of 30 fruit flies i

icang [17]

Idk sorry I would answer if I did but I need points to ask a question

7 0

3 years ago

BD=16 and ÁT is the<br> perpendicular bisector of BD. Y=?

iren2701 [21]

Answer:

$y= 5$

Step-by-step explanation:

Given

$BD = 16$

$BC = 2y - 2$

$CD = y + 3$

Required

Find y

$BD = BC + CD$

So, the expression becomes

$16 = 2y - 2 + y + 3$

Collect like terms

$16 = 2y + y- 2 + 3$

$16 = 3y+1$

Collect like terms

$3y = 16 - 1$

$3y = 15$

Make y the subject

$y= 15/3$

$y= 5$

8 0

3 years ago

A father requires his son to do chores for 4 to 6 hours a week. If the son wants to do

sashaice [31]

Answer: 5 hours and 15 mins

Step-by-step explanation: 45 mins x 7 = 5 hours and 15 mins. I checked so it should be correct. $45x2= 1$ hour and 30 mins.So I multiplied 1 hr 30 x 3 which gave me 4 hr 30 then added 45 mins, then I got 5 hr 15 min.

So in conclusion the answer is 5 hours and 15 mins.

Thank You

5 0

3 years ago

Solve the equation for Imaginary Numbers 1/2(x^2+40)=-12

Nimfa-mama [501]

Answer:

8i and -8i

Step-by-step explanation:

Move everything into the left-hand side to get a quadratic equation:

$\frac{1}{2}(x^2+40)=-12\\\frac{1}{2}x^2+20=-12\\\frac{1}{2}x^2+32=0$

Solve for x using the quadratic formula:

$\frac{1}{2}x^2+32=0\\x=\frac{-b\±\sqrt{b^2-4ac}}{2a}\\x=\frac{-(0)\±\sqrt{0^2-4(\frac{1}{2})32}}{2(\frac{1}{2})}\\x=\±\sqrt{-64}\\x=\±8i$

The two imaginary solutions for the equation are 8i and -8i.

3 0

3 years ago