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sukhopar [10]
4 years ago
8

2 [30- (28-2)] +5 answer with explanation please!

Mathematics
2 answers:
Galina-37 [17]4 years ago
6 0

Answer:

13

Step-by-step explanation:

Simplify the following:

2 (30 - (28 - 2)) + 5

Hint: | Subtract 2 from 28.

| 2 | 8

- | | 2

| 2 | 6:

2 (30 - 26) + 5

Hint: | Subtract 26 from 30.

| 2 | 10

| 3 | 0

- | 2 | 6

| 0 | 4:

2×4 + 5

Hint: | Multiply 2 and 4 together.

2×4 = 8:

8 + 5

Hint: | Evaluate 8 + 5.

8 + 5 = 13:

Answer:  13

SSSSS [86.1K]4 years ago
4 0

well first u will solve the numbers in the brackets;

=2 (30-6)+5

=2 (23)+5

then 2 will be multiplied with 23;

=46+5

=51

the answer is 51.

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charle [14.2K]

Answer:

-0.48

Step-by-step explanation:

(-1.2)(0.4)

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5 0
3 years ago
Find the slope of the line
Daniel [21]

Answer:

The slope of the line is -3/2 or -1.5

Step-by-step explanation:

y2-y1/x2-x1

-1-2/2-0=

-3/2 or -1.5

6 0
3 years ago
Read 2 more answers
An adult male cheetah runs at a speed of 26 mph. That is 30% faster than his average last month. How fast did the male cheetah r
Alex787 [66]

Answer:

20 mph

Step-by-step explanation:

First problem:

The new speed is 26 mph.

The old speed was x.

The new speed is 30% higher than the old speed.

1.3x = 26

x = 20

Answer: 20 mph

Second problem:

A number, perhaps a percent or a fraction, is missing from the problem.

4 0
2 years ago
(0.3d-1.5)/3 1/3=0.84:7/15
Anika [276]

Answer:

  d = 25

Step-by-step explanation:

Perhaps you want to solve for d:

  (0.3d -1.5)/(3 1/3) = 0.84/(7/15)

Change the division by a fraction to multiplication by its inverse.

  (0.3d -1.5)·(3/10) = (0.84)·(15/7)

  0.09d -0.45 = 1.8 . . . . . . . . . . . . simplify

  d - 5 = 20 . . . . . . . . . . . . . . . . . . divide by 0.09

 d = 25 . . . . . . . . . . . . . . . . . . . . . add 5

_____

Grouping symbols help show what is being divided by what. Especially where mixed numbers are involved, parentheses help show that the number 3 1/3 is not supposed to be interpreted as the product of 3 and 1/3.

4 0
3 years ago
The swimming pool at Spring Valley High School is a rectangle with a width of 70 meters and a length of 30 meters. Around the pe
Nadya [2.5K]

The expression for the area of the rectangular swimming pool is given as follows:

A = w² + 100w + 2100.

<h3>What is the area of a rectangle?</h3>

The area of a rectangle of length l and width w is given by the multiplication of these measures, that is:

A = lw.

In this problem, considering the width of 70 meters and a length of 30 meters, plus the floor of w meters, we have that:

  • l = 30 + w.
  • wi = 70 + w.

Hence the area is given as follows:

A = l x wi = (30 + w)(70 + w) = w² + 100w + 2100.

More can be learned about the area of a rectangle at brainly.com/question/10489198

#SPJ1

4 0
1 year ago
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