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defon
3 years ago
11

What is the difference between 2a + 5 and 2(a + 5)? Give an English expression to describe each of

Mathematics
1 answer:
Sergio [31]3 years ago
6 0

Answer:

without brackets, the two is only multiplying the a. with brackets, you distribute the 2, making the equation 2a+10

Step-by-step explanation:

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You have 2 5/8 pizzas to share with three friends, how much pizza will each friend get?
Mazyrski [523]
2 5/8 divided by 3

(2*8)+5/8 divided by 3

16+5/8 divided by 3

(3*7/2^3)(1/3)

3*7/2^3*3

7/2^3

7/8

each friend would get 7/8 
5 0
3 years ago
Read 2 more answers
At Glenridge High School, 20 percent of the
Makovka662 [10]

Answer:

40 percent

Step-by-step explanation:

60 - 20 = 40

Reasoning: The amount of seniors that attended was 20 percent, so 60 (total students) percent minus 20 percent is equal to 40 percent.

Hope this helps!

3 0
3 years ago
Can you please help me solve
Digiron [165]

Answer:

First Problem:

1/2 * -2 2/5 = 1/2 * -12/5 = -12/10

Simplify -12/10 into -6/5

Step-by-step explanation:

8 0
3 years ago
Fabio is driving west away from Albany and towards buffalo along interstate 90 at a constant rate of speed of 62 miles per hour.
emmasim [6.3K]

Answer:

The distance between Albany and Buffalo along the I90 is 288.8 mi.

The speed of Fabio is 62 mph.

After 1.5 hours, he is 221 miles from Albany.

Things we can calculate here:

Using the relation:

Distance = time*speed.

We can calculate the number of miles that he moved in that 1.5 hours.

D = 62mph*1.5h = 93mi.

If after 1.5 hours, he was 221 miles Albany, then before that he was 93 miles closer to Albany.

His initial position was:

221 - 93 = 128 miles away from Albany.

Now we also can calculate the time left to arrive at Buffalo.

We know that the distance between Albany and Buffalo is 288.8 mi

And he is 221 mi away from Albany.

Then the distance left to Buffalo is:

288.8mi - 221mi = 67.8mi

And the time left will be:

Distance/speed = time

67.8mi/62mph = 1.1 hours.

He needs to drive for another 1.1 hours to get to Buffalo.

7 0
3 years ago
Identify the vertex of the function, f(x) = 3(x - 1)2 + 5.
Softa [21]
I believe it is (1,5)
6 0
3 years ago
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