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
sergeinik [125]
2 years ago
12

Help me solve this equation and show work 11d + 17b = 95 d + b = 7

Mathematics
2 answers:
jonny [76]2 years ago
6 0

Answer:

B = 3

d = 4

Step-by-step explanation:

You can use elimination method. Multiply (d + b = 7) by -11.

11d + 17b = 95

-11d - 11b = -77

add together. D’s will cancel

6b = 18

divide by 6

b = 3

plug in 3 for b in the equation of your choice

d + (3) = 7

subtract 3

d = 4

sweet-ann [11.9K]2 years ago
4 0

Answer:

{d,b}={4,3}

Step-by-step explanation:

[1]    11d + 17b = 95

  [2]    d + b = 7

Graphic Representation of the Equations :

   17b + 11d = 95        b + d = 7  

 

Solve by Substitution :

// Solve equation [2] for the variable  b

 [2]    b = -d + 7

// Plug this in for variable  b  in equation [1]

  [1]    11d + 17•(-d +7) = 95

  [1]    -6d = -24

// Solve equation [1] for the variable  d

  [1]    6d = 24

  [1]    d = 4

// By now we know this much :

   d = 4

   b = -d+7

// Use the  d  value to solve for  b

   b = -(4)+7 = 3

Solution :

{d,b} = {4,3}

You might be interested in
For every 2 adults there are 7 kids. There are a total of 180 people. How many adults and kids are there out of the 180 total?
Troyanec [42]

Answer:

40 adults and 140 kids

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Which statements are true about these lines? Select three<br> options.
gayaneshka [121]

i need the ancwer options and the linea

6 0
2 years ago
A triangle has sides with lengths of 8 centimeters, 15 centimeters, and 17 centimeters. Is it a right triangle?
ycow [4]

Answer:

Yes it is!

Step-by-step explanation:

If you want to know whether it is, use the pytheoream theory. a2+b2=c2

a is the shortest side, b is the second longest and c is the longest.

In this case, the equation will be:

8 sq + 15 sq = 17 sq

64 + 225 = 289

= It is a right-angled triangle!

7 0
3 years ago
Consider the function g:
Alja [10]
Another way to ask this question: where the x-value of function g equals 12, what's the y-value?

remember that function notation is like so: f(x), g(x), h(x)... so the number in the parentheses is an x-value from the function.

look through your points and find the one that represents an x-value of 12. (12, 19) is the point, and 19 is your output--so, g(12) = 19.
6 0
3 years ago
Helppp can u finish the problem plz show your work!!!!
sveticcg [70]
_
2.6
__
3/8.0
-6
-------
20
- 18
--------
2

_
answer: 2.6
4 0
3 years ago
Other questions:
  • You spend $11 on school supplies. You purchase pencils of $0.25 each and pens for $2 each. You purchase a total of 30 pencils an
    6·1 answer
  • It takes an airplane 5/12 of a minute to fly 3/4 of a mile. What is the airplanes speed per minute?
    6·1 answer
  • Caitlyn has a credit card with a spending limit of $1500 and an APR (annual percentage rate) of 18%. During the first month, Cai
    10·2 answers
  • Rachel has a collection of 40 stuffed animals. Of the animals, 3/8 are bears and 1/5 are dogs. the rest are other animals. How m
    11·1 answer
  • What fraction of a circle is 80°?​
    5·2 answers
  • How do I solve y=x+3​
    12·2 answers
  • F() = x2 + 1<br> g(x) = 5 - x<br> (f+g)(x) =
    13·1 answer
  • Convert the following number to percent 5/14 exact ,no decimals. Use a mixed number if needed.
    6·1 answer
  • Help pls What is the volume of this composite solid?
    11·2 answers
  • Jordan's family spends an average of $70 per month on electricity. At that rate, what can Jordan's family expect to pay for elec
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!