1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
rjkz [21]
2 years ago
15

-2 (3x - 5) = - 6x + b

Mathematics
2 answers:
MAXImum [283]2 years ago
5 0

Answer:

b = 10

Step-by-step explanation:

We can first use the distributive property to pen the parenthesis,

-2(3x - 5) = -6x + b

(-2)(3x) + (-2)(-5) = -6x + b

-6x + 10 = -6x + b

Adding 6x on both sides gives us,

-6x + 10 (+6x) = -6x + b (+6x)

10 = b, or b = 10

If you want to find x, x can be any real number.

kogti [31]2 years ago
4 0

Answer:

b= 10

Step-by-step explanation:

You might be interested in
Brown rice costs $2 per pound, and beans cost $1.60 per pound. Lin has $10 to spend on these items to make a large meal of beans
Valentin [98]

Answer:

1.   2r+1.6b=10

2.  r=5-0.8b

3.  b=6.25-1.25r

Step-by-step explanation:

<h3> The complete exercise is: "Brown rice costs $2 per pound, and beans cost $1.60 per pound. Lin has $10 to spend on these items to make a large meal of beans and rice for a potluck dinner. Let b be the number of pounds of beans Lin buys and r be the number of pounds of rice she buys when she spends all her money on this meal.</h3><h3>1. Write an equation relating the two variables.</h3><h3>2. Rearrange the equation so "b" is the independent variable.</h3><h3>3. Rearrange the equation so "r" is the independent variable."</h3><h3 />

1. According to the information exercise given in the exercise, the cost per pounds of brown rice is $2. Since "r" represents the number of pounds of rice Lin buys, the total cost of the brown rice she buys can be represented with this expression:

2r

The beans cost $1.60 per pound. Since "b" represents the number of pounds of beans Lin buys, the total cost of beans she buys can be represented as:

1.6b

Knowing that she spends $10, you can write the following equation:

2r+1.6b=10

2. In order to rearrange the equation so "b" is the independent variable, you need to solve for "r":

2r+1.6b=10\\\\2r=10-1.6b\\\\r=\frac{10-1.6b}{2} \\\\r=5-0.8b

3. To rearrange the equation so "r" is the independent variable, you must solve for "b". You get:

2r+1.6b=10\\\\1.6b=10-2r\\\\b=\frac{10-2r}{1.6}\\\\b=6.25-1.25r

7 0
3 years ago
In the figure, BC is a support for the roof<br> of a garage. What is the length of BC?
Sonbull [250]

Answer:

Bc = √63 ft

Step-by-step explanation:

Here, we want to get the length of BC

As we can see, there is a right angled triangle ABC, with 12ft being the hypotenuse and 9 ft the other side

So we want to get the third leg which is BC

we can use the Pythagoras’ theorem here

And that states that the square of the hypotenuse equals the sum of the squares of the two other sides

let the missing length be x

12^2 = x^2 + 9^2

144 = x^2 + 81

x^2 = 144-81

x^2 = 63

x = √63 ft

4 0
2 years ago
3456.8 round the number below to the nearest whole number one place
fiasKO [112]

Answer:

I do not understand this question

4 0
2 years ago
Someone please help me!!:(
solong [7]
Ether 3 4 Relize To always Look At the equation Of wat You’re Doing
3 0
3 years ago
Help!!!!! Help please<br> !!!!!!
Ivahew [28]

Step-by-step explanation:

um I will help mmmmmmmmmm

8 0
3 years ago
Read 2 more answers
Other questions:
  • 50+24/(6x2) <br> Please solve and show work. Thank you.
    8·1 answer
  • The expression 21m−49n factored using the GCF
    10·2 answers
  • It cost 45$ to rent a car each day. There is also a fee of 12$. How much does it cost to rent a car for 5 days including the fee
    5·2 answers
  • can someone show me step by step this one too? it says I have to solve for the indicated variable plz help
    15·1 answer
  • Jim got 2 out of 5 questions correct on his test. Which is equivalent to 2/5?
    5·1 answer
  • Simplify this expression 5g/15 (g+h)
    13·1 answer
  • A rectangle with an area of 103 square feet is dilated by a scale factor of 3. What is the new area?
    7·1 answer
  • Which item is more economical?
    6·1 answer
  • James bought 6 2/3 cups of raising to use in a recipe for oatmeal raisin cookies. If he plans on making three separate batches o
    7·1 answer
  • 10x−y = 10<br> −2x+ 5y = −2
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!