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3 years ago

Carley’s progress from a 5-kilometer race is displayed in the graph below.

Mathematics

1 answer:

eduard3 years ago

6 0

Answer:

35 minutes

Step-by-step explanation:

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A two-digit random number is chosen. What is the probability that the sum of its digits is 5?

MrMuchimi

10≤n<100

So the number of two digit numbers is 99-10+1=90

The only combinations that sum to 5 are 14, 23, 32, 41, 50 so

P(sum=5)=5/90

P(sum=5)=1/18

8 0

4 years ago

Read 2 more answers

If the diagonal of a square is approximately 12.73, what is the length of its sides?

Alja [10]

Answer:

The length of the sides of the square is 9.0015

Step-by-step explanation:

Given

The diagonal of a square = 12.73

Required

The length of its side

Let the length and the diagonal of the square be represented by L and D, respectively.

So that

D = 12.73

The relationship between the diagonal and the length of a square is given by the Pythagoras theorem as follows:

$D^{2} = L^{2} + L^{2}$

Solving further, we have

$D^{2} = 2L^{2}$

Divide both sides by 2

$\frac{D^{2}}{2} = \frac{2L^{2}}{2}$

$\frac{D^{2}}{2} = L^2$

Take Square root of both sides

$\sqrt{\frac{D^{2}}{2}} = \sqrt{L^2}$

$\sqrt{\frac{D^{2}}{2}} = L$

Reorder

$L = \sqrt{\frac{D^{2}}{2}}$

Now, the value of L can be calculated by substituting 12.73 for D

$L = \sqrt{\frac{12.73^{2}}{2}}$

$L = \sqrt{\frac{162.0529}{2}}$

$L = \sqrt{{81.02645}$

$L = 9.001469325$

$L = 9.0015$ (Approximated)

Hence, the length of the sides of the square is approximately 9.0015

7 0

3 years ago

If x = 7 and f = 4 and g = 9 and l = 24 and p = 12 and e = 9847493 then what is x ÷ fg X i ÷ p

REY [17]

0.38^• or 7/18. If the x after the g and before the i is a multiplication (btw the ^• is a repeater

3 0

3 years ago

An airplane is loaded with cargo and ready to take off. Before it departs, an unknown number

Leto [7]

Answer:

b ≤ 50

Step-by-step explanation:

Since no more than 400 pounds of b number of 8 pound boxes can be taken off to ensure that the plane is in balance, this can be represented by the inequality:

8b ≤ 400

b ≤ 400/8

b ≤ 50

This means that a maximum number of 50 8 pounds boxes can be taken off the plane for a 600 pound crate to be put on ensuring that the plane is in balance.

8 0

3 years ago

luis, marissa, and federico are raising money for a school trip. Luis has raised 6/7 of the total amount needed, marissa has rai

Virty [35]

Answer:

i believe luis... sorry if i'm wrong!!

Step-by-step explanation:

luis has the most and there isnt 11 in 10, so i'm guessing it would be 6/7..luis

5 0

3 years ago

Read 2 more answers