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
Nina [5.8K]
3 years ago
13

Solve each of the following system of equations by substitution!!! x-5y=-49 y=-2x+1

Mathematics
1 answer:
saul85 [17]3 years ago
8 0

Answer:

(-4,9)

Step-by-step explanation:

substitute the given value for y into the first equation

x-5(-2x+1)=-49

distribute

x+10x-5=-49

add like terms

11x-5=-49

add 5 to both sides

11x=-44

divide both sides by 11

x=-4

now plug x into into the second equation

y=-2(-4)+1

y=8+1

add like terms

y=9

You might be interested in
Write an expression that is equivalent to 3/4 (5z+ 16
Pie
<span>(15/4)*z + 12?... I tried working with different ways on the calculator to get the answer and that might be it.</span>
6 0
3 years ago
The cost (in dollars) in making b bracelets is represented by 4+5b. The cost (in dollars) of making b necklaces is represented b
ddd [48]
Answer:

P(b)=3b+2

Step-by-step explanation:

The cost (in dollars) in making b bracelets is represented is

B(b)=4+5b

The cost (in dollars) of making b necklaces is

N(b)=8b+6

To find how much more it will cost to make b necklaces than b bracelets, we find the difference,

P(b)=N(b)-B(b)

P(b)=8b+6-(4+5b)

P(b)=8b+6-4-5b

P(b)=3b+2

This is a polynomial in descending powers of b, hence it is in standard form;
8 0
4 years ago
Can you help me with this oroblem
ludmilkaskok [199]

Answer:

the picture is not clear.

pls edit


7 0
3 years ago
The total cost of a $112.75 meal with a 20% tip​
irinina [24]

Answer:

$135.30

Why:

Take the 112.75 and multiply it by 1.2, or in other words 120%. You get 135.3, or in a money situation, $135.30. Good luck.

8 0
3 years ago
Read 2 more answers
What is the least common multiple of 3,7,9
KengaRu [80]


The least common multiple is 63.

Explanation: 63 is the least number that 3 7 and 9 can go into evenly. Therefore, it is the least common multiple.

8 0
3 years ago
Read 2 more answers
Other questions:
  • At a store clearance, a woman spent less than $200 on shirts that were labeled $15 each. How many shirts did she buy? Identify t
    15·1 answer
  • Anybody know this answer
    13·1 answer
  • ASAP What is the volume of a sphere, to the nearest cubic inch, if the radius equals 3 inches? Use π = 3.14. A. 101 in³ B. 210 i
    11·2 answers
  • Differential Equations - Reduction of order
    12·1 answer
  • The function f(x) = 40sin(0.1x + 12) + 50 represents the number of items, f(x), made in a factory each day for x days. The data
    8·2 answers
  • A quarterly telephone bill consist of N$79.15 rental plus 4.7 cents for each dialled unit. Sales tax is added at 15%. What is th
    10·2 answers
  • You want to buy a shirt that is $25 and you have a 10% off coupon. If you use the coupon, how much money will be taken off the s
    14·1 answer
  • The institute of certified business consultants ICBC offers a certification for
    12·1 answer
  • (3-4i)(6i+7)-(2-3i)
    8·1 answer
  • Yoo anyone want to date<br><br><br>never gonna give you up
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!