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artcher [175]
3 years ago
10

76 + 4= add the ones and the tens. Do you regroup? yes or no

Mathematics
1 answer:
nikklg [1K]3 years ago
6 0
76 + 4 is 80... don't know what you're asking
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0.00045−2.5⋅10 −5 = what is the answer i been up all day
Mama L [17]
If I’m getting this right the equation is: 0.00045 - 2.5 x 10 - 5? The dot in between 2.5 and 10 indicates a multiplication sign

So...

0.00045 - (2.5 x 10) - 5
0.00045 - 25 - 5
= -29.9999 -> -30
8 0
2 years ago
a diver went down 25.55 feet below the surface of the ocean and then 19.5 feet the fruther down he then rose 12.75 feet and solv
Elza [17]
-24.3 feet

-22.55-19.5 is -42.05

-42.05+ 17.75 is -24.3
6 0
3 years ago
John and Elijah are both driving from New York City to Richmond. John leaves
alina1380 [7]

Elijah will pass John after 5 hours, and they each will have traveled 310 miles. Then the correct option is C.

<h3>What is speed?</h3>

The distance covered by the particle or the body in an hour is called speed. It is a scalar quantity. It is the ratio of distance to time.

We know that the speed formula

Speed = Distance/Time

John and Elijah are both driving from New York City to Richmond.

John leaves at 7:20 and averages 60 mph (miles per hour) on the way.

Elijah leaves at 7:30 and averages 62 mph on the way.

The situation is modeled by this system, where x is the number of hours after Elijah leaves and y is the distance each will travel.

y = 60x + 10 ...1

y = 62x        ...2

The time is taken by Elijah to cross John will be

62x = 60x + 10

 2x = 10

   x = 5 hours

The distance traveled in 5 hours will be

y = 62 (5)

y = 310 miles

Elijah will pass John after 5 hours, and they each will have traveled 310 miles.

Then the correct option is C.

More about the speed link is given below.

brainly.com/question/7359669

#SPJ1

3 0
1 year ago
The number of student of schoolwas 450 last year and it is 396 this year.By how many percent did the number decrease
zhannawk [14.2K]

Step-by-step explanation:

450 - 396 = 54

(54/450) * 100% = 12%

Hence the decrease is 12%.

3 0
3 years ago
Read 2 more answers
What are the x- and y- coordinates of point E, which partitions the directed line segment from A to B into a ratio of 1:2? x = (
Contact [7]

Answer:

(0, 1)

Step-by-step explanation:

In the picture attached, the question is shown.

From the picture:

  • x2 = -4 (x-coordinate of the endpoint)
  • y2 = 9 (y-coordinate of the endpoint)
  • x1 = 2 (x-coordinate of the startpoint)
  • y1 = -3 (y-coordinate of the startpoint)

Ratio m:n, means that m = 1 and n = 2.

Replacing into the formulas:

x-coordinate = m/(m+n) * (x2- x1) + x1 = 1/3 * (-4 - 2) + 2 = 0

y-coordinate = m/(m+n) * (y2- y1) + y1 = 1/3 * (9 - (-3)) + (-3) = 1

6 0
2 years ago
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