3 years ago

What's an interval. I just dont seem to get it. Its too tricky for me

1 answer:

3 0

An interval is a time in which comes between two main things. for example if we are running really fast for 30 seconds and then we walk for 1 minute. that walking is called an interval. after the interval we speed up again.

You might be interested in

Derek spends three dollars on breakfast and $5.50 on lunch every school day how much does he spend on breakfast and lunch in a s

maks197457 [2]

(3+5.50)5

8.50*5=42.5

Derek spends $42.50 each school week.

7 0

4 years ago

Read 2 more answers

One positive number is three more than twice another. If their product is 629, find the numbers.

sineoko [7]

Answer:

x = 17 and y = 37

Step-by-step explanation:

Let the numbers be x and y.

y = 3 + 2x

xy = 629

substituting y in the second equation we get

x(3+2x) = 629

3x + 2 $x^{2}$ = 629

2 $x^{2}$ + 3x - 629 = 0

Solving a quadratic equation by using its formula:

x = [-3 ±√(9-4(2)(-629)] / 4

x = [-3 ± √5041] / 4

x = [-3 ± 71] / 4

x = 17 and $\frac{-37}{2}$

Ignore the negative number in x and just use x = 17 in the first equation we get

y = 3 + 2(17) = 37

5 0

3 years ago

4. (4-7)2 - 6.7 +20

LuckyWell [14K]

Answer: 7.3

Step-by-step explanation:

Do the parentheses first!

4-7= -3

Then, multiply -3 by 2

-3×2= -6

Next,

-6-6.7= -12.7

Then, add -12.7 to 20

-12.7+20=7.3

Your answer is 7.3

4 0

3 years ago

Fill in the missing this equation. parts of the table using 6-8x+13

Allisa [31]

Answer:

use a calculator

Step-by-step explanation:

4 0

3 years ago

Hi please help......

Scrat [10]

Answer:

9/20

Step-by-step explanation:

45%=45/100

hope this helps

7 0

3 years ago