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jasenka [17]
3 years ago
10

What property allows you to conclude that 5x+7x=12x

Mathematics
1 answer:
Andrei [34K]3 years ago
6 0
Since both of the numbers have a variable which is x ready to be multiplied, there is no expression leading to the variable therefore you will add normally but you will need to put the missing variable which needs to be multiplied. So overall you can just add and once you get your variable you can be abe to multiply and get your final answer.

Hope this helps
You might be interested in
What is 8x8x8x8x8x8x8? I don't have a calculator! Please help!
grin007 [14]
It is also the same as 8 to the power of 7
which looks something like this 8^7
you can also do it by doing 64×64×64×8
then do 64×64
multiply that answer by 64
multiply that answer by 8
this will work with any question and you can do it without a calculator and on paper.
6 0
3 years ago
Find the equation of the line through (10, 4) that is parallel to the line with the equation
lyudmila [28]

Answer:

x + y = 14

Step-by-step explanation:

Parallel lines have the same slope, so the line's slope will be -1.

Plug this slope and the given point into y = mx + b to find b:

y = mx + b

4 = -1(10) + b

4 = -10 + b

14 = b

Then, plug this and the slope into y = mx + b

y = -x + 14

Then, put this into standard form by moving the x to the other side:

x + y = 14 is the equation in standard form

6 0
3 years ago
It is a hot day at the beach. Ice water costs $1 per bottle and this is your only option. Your marginal benefit for water follow
Trava [24]

Answer:

9 bottles of water

Step-by-step explanation:

Marginal benefit is a microeconomic concept that explains how much the consumer adds satisfaction to each unit consumed of a given product. Usually, the marginal benefit is decreasing, which makes logical sense, the more a customer consumes a particular good, the smaller the benefit of the next unit.

At first, the first bottle of water has a high benefit as mentioned in the exercise:  9

In the second, you are a little less thirsty, so the benefit will be 10 - 1x2 = $8

In the ninth bottle, you will have very little thirst and the benefit will be 10 - 1x9 = $1

In the tenth bottle there is no benefit, the consumer is indifferent. As a rational consumer, you will buy until the bottle is still usable, even if minimal, for 9 bottles when your benefit is $1.

5 0
3 years ago
Tanvi and her friend Beth are making cookies for their school's cookie swap. Tanvi mixes 1
Pie

Answer:

they are the same

Step-by-step explanation:

the ratios if in simplest form are both 1/3

4 0
3 years ago
If 15% of the total ticket sales is $375, what is the value of the total ticket sales?
Arisa [49]

Answer:

The value of the total ticket sales is, 2500

Step-by-step explanation:

Let x be the total ticket sales.

As per the statement:

if 15% of the total ticket sales is $375

\text{15 \% of total ticket} = \frac{15}{100} \times x = \frac{15x}{100}

then;

\frac{15x}{100} = 375

Divide both sides by 15 we have;

\frac{x}{100} =25

multiply both sides by 100 we have;

x = 2500

Therefore,  the value of the total ticket sales is, 2500

5 0
3 years ago
Read 2 more answers
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