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
Mashutka [201]
3 years ago
13

Solve the system by linear combination. Show all your work. 9x+5y=35 -2x-5y=0

Mathematics
1 answer:
mars1129 [50]3 years ago
5 0

Answer:

(5, - 2 )

Step-by-step explanation:

Given the 2 equations

9x + 5y = 35 → (1)

- 2x - 5y = 0 → (2)

Adding the 2 equations term by term will eliminate the y- term

7x = 35 ( divide both sides by 7 )

x = 5

Substitute x = 5 into either of the 2 equations for value of y

Substituting in (1) gives

9(5) + 5y = 35

45 + 5y = 35 ( subtract 45 from both sides )

5y = - 10 ( divide both sides by 5 )

y = - 2

Solution is (5, - 2 )

You might be interested in
Help and thanks please
goblinko [34]

Answer:

D i think

Step-by-step explanation:

7 0
3 years ago
mikes deli just sold 328 ham sandwiches this week. around how many ham sandwiches did mike sold every day this week?
Alenkasestr [34]

Answer:

46.9

Step-by-step explanation:

328/7 = 46.9

To double check: 46.9 x 7 = 328

Have an amazing day!!

PLEASE RATE!!

4 0
2 years ago
What is the decay factor in the exponential decay function y=a (1-r) t
MrRissso [65]

Answer:

in this form, the "-r" would cause the result to decrease

I assume that the answer is "r"

if r = .1 (10 %) then 1-.1 = .9

if you have 100 items then y = 100(.9)^1 = 90

the total decreased by 10% ... y = 100(.9)^2 after 2 time periods

Step-by-step explanation:

5 0
2 years ago
Shailes class had 2 students out of 5 students choose Fortnite as their favorite video game. What was the
GuDViN [60]

Answer:

<em>40%</em>

Step-by-step explanation: <em>2 divided by 5 is 0.4 so that is 40%</em>

6 0
3 years ago
Read 2 more answers
Lola rode her bike for 7/10 of an hour on Saturday and 3/5 of an hour on Sunday. How much longer did she ride her bike on Saturd
s344n2d4d5 [400]
1 hr = 10/10
1/10 of an hr= 6 min
(7)(6)=42
Saturday she rode her bike for  42 min
Sunday
1 hr = 5/5
1/5 of an hr = 12 min
(3)(12)= 36
On sunday she rode her bike for 36 min
Finally
42-36= 6
She rode her bike 6 min longer on saturday than sunday
4 0
3 years ago
Read 2 more answers
Other questions:
  • Confused on "their sum is to the sum of their squares as 7 is to 50." Help me put this in a equation please
    9·2 answers
  • Function A is represented by the equation y = 2x + 5.
    9·1 answer
  • The CEO of a local tech company wants to estimate the proportion of employees that are pleased with the cleanliness of the break
    7·1 answer
  • The triangle in this question is not drawn accurately. Use Pythagoras' Theorem to explain why triangle A must be right-angled.
    15·1 answer
  • if the pattern below follows the rule "starting with 10,every consecutive line has a number one less than the previous line." ho
    5·1 answer
  • Which of the following best describes the solution to the equation below?
    5·1 answer
  • How do you graph x ≤ 5 on a number line? pls help!
    8·1 answer
  • Hello I am weak at maths! today was my math exam and I didn't do it well.Please help me daily when I ask questions in an easy ma
    9·2 answers
  • Help please and thank you
    12·2 answers
  • Classify each number below as an integer or not.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!