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enot [183]
3 years ago
6

You are planning a picnic today, but the morning is cloudy Oh no! 50% of all rainy days start off cloudy! But cloudy mornings ar

e common (about 40% of days start cloudy) And this is usually a dry month (only 3 of 30 days tend to be rainy, or 10%) What is the chance of rain during the day?
Mathematics
1 answer:
Leviafan [203]3 years ago
5 0

Answer:

The chance of rain during the day is 1/10

Step-by-step explanation:

Probability is given by number of possible outcomes ÷ number of total outcomes = 3/30 = 1/10

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Write an equation of the line perpendicular to the given line that contains P.
lara31 [8.8K]

Answer:

Step-by-step explanation:

perp. -5

y + 7 = -5(x - 4)

y + 7 = -5x + 20

y = -5x + 13

7 0
2 years ago
Find the measure of unknown angle​
inna [77]

Answer:

a = 85° , b = 30° , c = 65°

Step-by-step explanation:

∠ a and 85° are alternate angles and are congruent , so

a = 85°

∠ c and 65° are alternate angles and are congruent , so

c = 65°

a, b and c lie on a straight line and sum to 180° , that is

a + b + c = 180°

85° + b + 65° = 180°

150° + b = 180° ( subtract 150° from both sides )

b = 30°

8 0
2 years ago
Mr. Duncan mixed 0.00055 pounds of sulfur and 0.00104 pounds of iron powder in a test tube before heating it. What is the total
vovikov84 [41]
We add 0.00055+0.00104 together.

0.00104+0.00055= 0.00159

I hope this helps!
8 0
3 years ago
Decimal divided by a decimal can never be a whole number?
soldier1979 [14.2K]
No decimal can be whole number but the rational number
6 0
3 years ago
Read 2 more answers
If you add​ Natalie's age and​ Fred's age, the result is 39. If you add​ Fred's age to 4 times​ Natalie's age, the result is 78.
Darina [25.2K]

Step-by-step explanation:

We can write this word problem as two variables. Let us assume that:

x = Natalie's age

y = Fred's age

The first part of the word problem is that "If you add​ Natalie's age and​ Fred's age, the result is 39." Therefore:

Natalie's age + Fred's age = 39

x + y = 39

This will be our first equation. The second equation can be derived from the statement that "If you add​ Fred's age to 4 times​ Natalie's age, the result is 78." Therefore:

(4 times Natalie's age) + Fred's age = 78

4x + y = 78

We can now form a system of equations and solve for both x and y:

\left \{ {{x + y = 39} \atop {4x + y = 78}} \right.

The simplest way to solve would be using the Substitution method, as seen here:

x + y = 39

y = 39 - x

4x + y = 78

4x + (39 - x) = 78

3x + 39 = 78

3x = 39

x = 13

x + y = 39

13 + y = 39

y = 26

Remember that x = Natalie's age and y = Fred's age. Therefore, Natalie's age is 13 years old and Fred's age is 26 years old.

8 0
2 years ago
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