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AlekseyPX
2 years ago
6

Jeremy sprinted for 123 seconds and rested. Then he sprinted for 157 seconds, rested, and sprinted again for 195 seconds. Estima

te the combined time he sprinted by rounding to the nearest ten and then adding the rounded numbers.
Mathematics
1 answer:
Paraphin [41]2 years ago
5 0
480 aproxmately if you round the numbers then add them up
You might be interested in
Please help.
denis23 [38]

9514 1404 393

Answer:

  1. Angle 1 = 139°
  2. Angle 2 = 41°
  3. x = 29; exterior angle = 131°

Step-by-step explanation:

These problems let you make use of the fact that the sum of the remote interior angles is equal to the exterior angle.

__

1. 53° +86° = ∠1

  139° = ∠1

__

2. ∠2 +92° = 133°

  ∠2 = 133° -92°

  ∠2 = 41°

__

3. (x +9)° +93° = (4x+15)°

  87 = 3x . . . . . . . . . . . . . . . . subtract x+15°

  29 = x . . . . . . . divide by 3

The exterior angle is ...

  (4x +15)° = (4·29 +15)° = 131° . . . exterior angle

3 0
2 years ago
Let n be the product of the two smallest 3-digit prime numbers. Find the sum of the digits of n.
lilavasa [31]

Answer:

Step-by-step explanation:

n = 101 × 103 = 10,403

sum of digits = 8

7 0
2 years ago
jonathan has a collection of 400 marbles. Blue marbles make up17%, percent of his collection. How many blue marbles does Jonatha
dsp73
17% of 400 is 68.
Another way u can do it is 17% of 100 four times since its easier to do. 
17% of 100 is 17.
we have to do this 4 times since 100 goes into 400 four times.
So 17*4 =68
5 0
2 years ago
Read 2 more answers
A radio station had 170 tickets to a concert. They gave away 4 times as many tickets to listeners as to employees. How many tick
never [62]
Employees: 34

170÷4x +1x
170=5x
34=x

1x=34 Employees 4x= 136 Listeners
5 0
3 years ago
The splitting apart of one cell to form two new cells is called ____
ohaa [14]

mitosis

Mitosis is a process where a single cell divides into two identical daughter cells (cell division). During mitosis one cell. divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells.

6 0
2 years ago
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