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Minchanka [31]
3 years ago
11

Which expression is equivalent to (3b + 2r) + (4b + r)?

Mathematics
2 answers:
Mice21 [21]3 years ago
4 0

(3b + 2r) + (4b + r)

3b+4b +2r+r

7b +3r

Choice B


solong [7]3 years ago
3 0

Answer:

its b

Step-by-step explanation:

You might be interested in
Find the 17th term in the sequence for which a1 = 10 and d = -3.
yKpoI14uk [10]

Answer:

d. -38

Step-by-step explanation:

Arithmetic sequence concepts:

The general rule of an arithmetic sequence is as follows:

a_{n+1} = a_{n} + d

In which d is the common diference between each term.

We can expand the general equation to find the nth term from the first, by the following equation:

a_{n} = a_{1} + (n-1)*d

In this question:

a_{1} = 10, d = -3

17th term:

a_{17} = a_{1} + (17-1)*d = 10 + 16*(-3) = -38

So the correct answer is:

d. -38

6 0
3 years ago
Wite a numerical expression for the below problems. Simplify the expressions.
ziro4ka [17]

Answer:

1) 9

2) 34

Step-by-step explanation:

For the first one, it would be

= (6×3)/2

= 18/2

= 9

The second one is,

= 36- (12/6)

= 36 - 2

= 34

4 0
2 years ago
A train is traveling at 60 mph. If the rate of speed increases 4 mph each hour,
Alenkasestr [34]

Answer:

B) 5 hours

Step-by-step explanation:

First, find the amount of mph between 60 and 80:

80 - 60

= 20 mph

Since the speed increases 4 mph per hour, we can find how long it will take to get to 80 mph by dividing 20 by 4:

20/4

= 5

So, the correct answer is B, 5 hours

6 0
2 years ago
As a medical examiner, you are asked for many reports related to types of death. You are initially asked for a report on the tem
iVinArrow [24]

The function is updated by calculating the composite function h(f(c)), where f = 1.8c + 32

<h3>How to update the function?</h3>

The function is given as h(c)

Where

  • c represents the temperature in Celsius
  • h(c) represents the number of heat-stroke deaths per thousand people

When a temperature in Celsius is converted to Fahrenheit, the conversion equation is:

F = 1.8C + 32

This means that we update the function by calculating the composite function h(f(c)), where f = 1.8c + 32

<h3>How the graph would be transformed?</h3>

In (a), we have:

h(f(c)) and f = 1.8c + 32

Substitute f = 1.8c + 32 in h(f(c))

h(1.8c + 32)

The above means that:

  • The graph would be vertically stretched by a factor of 1.8
  • Then the graph would be shifted up by 32 units

Read more about function transformation at:

brainly.com/question/1548871

#SPJ1

3 0
2 years ago
Simplify the expression 14y +6+3y
umka2103 [35]

Answer:

The simplified version is 17y + 6.

Step-by-step explanation:

14y + 6 + 3y

17y + 6

4 0
3 years ago
Read 2 more answers
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