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
natta225 [31]
3 years ago
8

-7x + 2y = -5 y = -7x + 8 explain how please

Mathematics
1 answer:
Fiesta28 [93]3 years ago
7 0

Answer:

x = 1 and y =1

Step-by-step explanation:

y = -7x + 8

sub into other eq

-7x + 2(-7x + 8) = -5

-7x - 14x + 16 = -5

-21x = -21

x - 1

y = -7(1) + 8

y = 1

You might be interested in
Mark is in training for a bicycle race. He needs to ride 50 km a week as part of his training. He rode 18.23 km on Monday and 13
konstantin123 [22]
The answer is B-about 18km


This is because you round 18.23 to 18km


then you round 13.94 to 14km


you add these rounded numbers together


you take it away from 50km


the answer would then me 18km


but it be ABOUT because that was only a rough estimate because it was rounded
5 0
3 years ago
Read 2 more answers
Value of x in this? Having trouble with this problem.
Solnce55 [7]
Answer:

I think it’s 105

Step by step explanation:

I hope this helped in some kind of way.
6 0
3 years ago
10x+18+11x+67=180 what is x
Scilla [17]
The answer for x is x= 4 11/21
6 0
3 years ago
The function g is defined by the following rule. g(x)=5x-4 <br> complete the function table
Elan Coil [88]
(-4,-24) (-1,-9) (1,1) (2,6) (4,16)

8 0
3 years ago
Read 2 more answers
Show that 2x +1 is a factor of 2x3 +5x2+4x+1 and factories completely
larisa [96]

\text{According to the factor theorem, if f(b) = 0, then x-b is a factor of f(x).}\\\\\text{Given that,}\\\\f(x) = 2x^3 +5x^2 +4x +1 \\\\f\left(-\dfrac 12 \right) = 2\left( - \dfrac 12 \right)^3 +5 \left( - \dfrac 12 \right)^2 +4 \left( - \dfrac 12 \right) +1 \\\\\\~~~~~~~~~~~~=-2 \cdot \dfrac 18 + 5 \cdot \dfrac 14 -2 +1 \\\\\\~~~~~~~~~~~=\dfrac 54 -\dfrac14 -1\\\\\\~~~~~~~~~~~=\dfrac 44 -1 \\\\\\~~~~~~~~~~~=1-1\\\\\\~~~~~~~~~~~=0\\\\\text{So,}~ 2x +1 ~ \text{is a factor of f(x).}

\text{Now,}\\\\f(x) = 2x^3 +5x^2 +4x +1 \\\\~~~~~~=2x^3+x^2 +2x^2 +2x +2x+1\\\\~~~~~~=x^2(2x+1)  +2x(2x+1) +  (2x+1)\\\\~~~~~~=(2x+1)(x^2 +2x +1)\\\\~~~~~~=(2x+1)(x+1)^2

3 0
2 years ago
Other questions:
  • What best describes the number 5 ? write prime composite
    14·1 answer
  • 98 points! please answer this question ASAP!
    10·2 answers
  • a salesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earning is 320 + 0.08x. which of
    8·2 answers
  • Javier earned $820 dollars this week .he net income was $683.20.he paid $95.60 in federal income tax. How much did Javier pay in
    9·2 answers
  • Cold someone help with this plz
    13·1 answer
  • Solve the system by substitution.<br> y = -7x + 6<br> 5x + y = 2
    5·1 answer
  • What number is 15% of 34?
    13·1 answer
  • HELP ME PLS MY DOG DIED
    7·1 answer
  • Ms. Chu's clothing store has 34 red t-shirts, 16 blue t-shirts, and 45 green t-shirts.
    7·1 answer
  • So it's got like money before and after and it has indepent and dependent variable ​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!