All categories

3 years ago

The standard golf ball has a mass of 45g.How many golf balls are there in a bag weighing 1.8 kg?

2 answers:

6 0

Bag weight 1.8 kg
Golf ball weight: 45g

1 kg = 1000g
Total bag weight in grams = 1.8 x 1000 = 1800g
total bag weight / golf ball weight = total balls in bag
1800 / 45 = 40
Total balls in bag = 40.

puteri [66]3 years ago

6 0

Answer:

There are 40 balls

Step-by-step explanation:

You might be interested in

Craig went to see a play at a theater downtown. The first act was 45 minutes long. Intermission lasted for 55 minutes and the se

Digiron [165]

Answer:

The play started at 5:10 PM.

Step-by-step explanation:

We are given the following in the question:

Length of first act = 45 minutes

Length of intermission = 55 minutes

Length of second act = 1 hour and 10 minutes

1 hour = 60 minutes

Thus, length of second act =

$=60+10\\=70\text{ minutes}$

The second part ended at 8:00 PM. We have to find the starting time of play.

Starting time of play =

$= 8-\dfrac{45+55+70}{60}\\=8 - 3\text{ hours} + 10\text{ minute}\\=5:10\text{ PM}$

Thus, the play started at 5:10 PM.

3 0

3 years ago

The sum of John and Sally’s ages is 24. John is 6 years older than Sally. Which system of equations below represents this relati

tankabanditka [31]

J+S=24 and J=S+6 represents the relationship between ages.

John is 15 years old and Sally is 9 years old.

Step-by-step explanation:

Let,

John's age = J

Sally's age = S

According to given statement, the sum of their ages is 24;

$J+S=24$ Eqn 1

John is 6 years older than Sally means we will add 6 in Sally's age;

$J=S+6$ Eqn 2

Putting value of J from Eqn 2 in Eqn 1;

$(S+6)+S=24\\S+6+S=24\\2S=24-6\\2S=18$

Dividing both sides by 2

$\frac{2S}{2}=\frac{18}{2}\\S=9$

Putting S=9 in Eqn 2

$J=9+6\\J=15$

J+S=24 and J=S+6 represents the relationship between ages.

John is 15 years old and Sally is 9 years old.

Keywords: linear equation, substitution method

Learn more about substitution method at:

#LearnwithBrainly

4 0

4 years ago

Admission to the the zoo is $15 and each individual ticket costs $3.50. What of the following expressions could represent the sc

zubka84 [21]

Answer:

Step-by-step explanation:

please mark brainliest, give a thanks, and rate a five stars if this helped! feel free to ask anymore questions if you need any more help! thanks!

(lol optional): add my sc: tealyn337

8 0

3 years ago

Starting at the point (0,0) how many ways are there to get to the point (7,4) if you have to pass through the point (2,2) and ea

cricket20 [7]

The number of ways there are to get to the point (7,4) if you have to pass through the point (2,2) is; 1266 ways

<h3>How to find the lattice Paths?</h3>

The formula to get the number of ways to get to the lattice point (x, y) (supposing x, y ≥ 0) by taking steps of one unit each either in the eastward or northward direction is exactly;

(x + y)

= (x + y)!/(x!y!)

( x )

Thus, number of ways from (0, 0) to (2, 2) = (2 + 2)!/(2!2!) = 6 ways

Number of ways to get to point (7,4) from (2, 2) is;

((7 - 2) + (4 - 2))!/(2!2!) = 7!/(2!2!) = 1260

Thus, total number of ways = 1266 ways

Read more about Lattice paths at; brainly.com/question/2109763

#SPJ4

4 0

2 years ago

Or a population, N = 10,000, μ = 121, and σ = 21. Find to 2 decimal places the z value for

Ugo [173]

Answer:

The z value is - 2.88

Step-by-step explanation:

The formula of the z-score of a population is z = (x¯ - μ)/(σ/ $\sqrt{n}$ )

The given in the problem is:

μ = 121
σ = 21
x¯ = 112.35
n = 49

Let us substitute all of these values in the rule above

$z=\frac{112.35-121}{\frac{21}{\sqrt{49}}}$

Simplify up and down

$z=\frac{-8.65}{\frac{21}{7}}$

$z=\frac{-8.65}{3}$

z = - 2.883333

Round it to 2 decimal places

∴ z = - 2.88

The z value is - 2.88

7 0

4 years ago