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3 years ago

What is the fourth number if three of the numbers are 80, 95, and 85?

Mathematics

2 answers:

krok68 [10]3 years ago

8 0

Answer:

Step-by-step explanation:

The answer is 88 because that is the mean, or average or the three numbers.

Strike441 [17]3 years ago

3 0

100 because it goes up 15 and 5

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Rewrite the decimal in the sentence below as a percentage.

serious [3.7K]

Answer:

0.0066%

Step-by-step explanation:

6 0

3 years ago

Han and Leila live 7 miles apart. They decide to start walking toward each other's houses at

AfilCa [17]

2.5 + 3 = 5.5 total speed

7miles / 5.5 mph = 1.27 hours

7 0

3 years ago

Read 2 more answers

Find the first, fourth, and tenth terms of the arithmetic sequence described by the given rule.

lubasha [3.4K]

Answer:

The answer is option C.

Step-by-step explanation:

The arithmetic sequence is given by

$A(n) = - 6 + (n - 1)( \frac{1}{5} )$

where n is the number of terms

For the first term

n = 1

So we have

$A(1) = - 6 + (1 - 1)( \frac{1}{5} )$

$= - 6 + (0)( \frac{1}{5} )$

$= - 6$

For the fourth term

n = 4

$A(4) = - 6 + (4 - 1)( \frac{1}{5} )$

$= - 6 + (3)( \frac{1}{5} )$

$= - 5 \frac{2}{5}$

For the tenth term

n = 10

$A(10) = - 6 + (10 - 1)( \frac{1}{5} )$

$= - 6 + (9)( \frac{1}{5} )$

$= - 4 \frac{1}{5}$

Hope this helps you

4 0

3 years ago

Julio started biking to the park traveling 8 mph, after some time the bike got a flat so Julio walked the rest of the way, trave

USPshnik [31]

Answer:

Julio travel 3 hours by biking and 4 hours by walking.

Step-by-step explanation:

Given:

Julio started biking to the park traveling 8 mph, after some time the bike got a flat so Julio walked the rest of the way, traveling 7 mph.

If the total trip to the park took 7 hours and it was 52 miles away.

Now, to find the time Julio travel at each speed.

The speed travelled by the bike = 8 mph.

The speed travelled by the walking = 7 mph.

Let the time Julio travel with bike be $x.$

And the time Julio travel by walking be $y.$

As, given Julio started biking to the park traveling, after some time the bike got a flat so Julio walked the rest of the way,

Thus, the total time taken:

$x+y=7$

$y=7-x\ \ \ .......(1)$

So, the distance travelled by bike:

Speed × time

$8\times x=8x$

And, the distance travelled by walking:

Speed × time

$7\times y=7y$

Now, the total distance travelled by Julio:

$8x+7y=52$

Substituting the value of $x$ from equation (1) we get:

$8x+7(7-x)=52$

$8x+49-7x=52\\\\x+49=52$

Subtracting both sides by 49 we get:

$x=3.$

The time Julio travelled with bike = 3 hours.

Now, to get the time Julio travelled by walking by substituting the value of $x$ :

$y=7-x\\\\y=7-3\\\\y=4\ hours.$

The time Julio travelled by walking = 4 hours.

Therefore, Julio travel 3 hours by biking and 4 hours by walking.

7 0

3 years ago

PLEASE HELP!!! THIS IS MY LAST QUESTION!! ASAP!!

aleksandr82 [10.1K]

Answer:

In order of what is shown on the pic:

- Trinomial

- Monomial

- Trinomial

- Binomial

- Polynomial with four terms

Step-by-step explanation:

Again, in the same order as above:

1. The first has three terms, making it a trinomial

2. 7x^2 - 7x^2 +4x

The 7x^2 cancels out and we are left with only 4x

Since there is one value, it is a monomial

3. This one has three terms, making it a trinomial

4. This one has two terms, making it a binomial

5. The last one has four terms, making it a polynomial with four terms.

8 0

3 years ago

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