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Artyom0805 [142]
3 years ago
5

When rolling 2 6 sided number cubes, what are the chances the sum of the roll will be 7

Mathematics
1 answer:
Lorico [155]3 years ago
4 0

Answer:


Step-by-step explanation:

For each of the possible outcomes add the numbers on the two dice and count how many times this sum is 7. If you do so you will find that the sum is 7 for 6 of the possible outcomes. Thus the sum is a 7 in 6 of the 36 outcomes and hence the probability of rolling a 7 is 6/36 = 1/6.

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A snail crawls 5/8 inches in 3/4 minute. What is the snail's speed in inches per minute? Write
sleet_krkn [62]

Answer:

5/12 inches per minute

Step-by-step explanation:

If A snail crawls 5/8 inches in 3/4 minute, then;

5/8 inches = 3/4 minute

we are to fine the distance covered in a minute;

x inches = 1 minute

Divide both expressions

5/8x = 3/4

24x = 20

12x = 5

x = 5/12

Hence the snail covered 5/12 inches per minute

6 0
3 years ago
on a cross-country road trip, a family drives 240 miles each day. Write and solve an equation to determine how far the family ha
Arada [10]
Well, first, let's label the variables for our equation:

240 Miles per day

Traveled for 4 days

_________________________________________

Now, let's set up an equation to help us:

240x = ?

Since they're trying to figure out how many miles the family traveled after 4 days, and, they're going 240 miles each day, we should plug in a 4 where 'x' is:

240 ( 4 ) = ?

Now, we multiply:

240
× 4
________
800
+ 160
________
960


Answer: The family traveled 960 miles in 4 days.

_________________________________________

I hope this helps!
5 0
3 years ago
Compare the values of the underlined digits
lidiya [134]
Don't understand this either
8 0
3 years ago
Read 2 more answers
Add. Write your answer in simplest form.<br><br> 4 6/7 + 3 5/7=____
qaws [65]
First add the fractions.

6/7 + 5/7 = 1 4/7

Then add the whole numbers

4 + 3 = 7

Then add the mixed number to the whole number

7 + 1 4/7 = 8 4/7

Your answer is 8 4/7
8 0
3 years ago
A horticulturist working for a large plant nursery is conducting experiments on the growth rate of a new shrub. Based on previou
Jet001 [13]

Answer:

Test statistic = - 3.354

We reject H0 and conclude that the growth rate of the new shrub is less than 3cm per week.

Step-by-step explanation:

H0 : μ = 3

H1 : μ < 3

The test statistic = (xbar - μ) / (s/ √n)

Xbar = 1.50

μ = 3

s = 3

n = 45

Test statistic = (1.5 - 3) / (3/ √45)

Test statistic = - 1.5 / 0.4472135

Test statistic = - 3.354

Pvalue, using the Pvalue from Z score calculator :

Pvalue = 0.00039826

α = 0.05

Pvalue < α ; We reject H0 and conclude that the growth rate of the new shrub is less than 3cm per week.

8 0
3 years ago
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