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
lianna [129]
3 years ago
7

Will mark brainliest!!

Mathematics
1 answer:
olga55 [171]3 years ago
8 0
Subtract the two equation from each other
-3x-7y=-66
-10x-7y=-24
--------------------
7x =-42
x=-6
by substituting in equation 1
(-3)(-6)-7y=-66
18-7y=-66
-7y=-84
y=12
so to check we substitute in the first equation

(-3*-6)-(7*12)=-66
18-84=-66
-66=-66
we check the second equations
-10(-6)-7(12)=-24
60-84=-24
-24=-24
You might be interested in
Gina has $175 with which to buy items at the bake sale at school. The graph shows the amount of money she has remaining and the
Triss [41]

Answer:

B

Step-by-step explanation:

You can delete options A and C, because there are multiple domains and ranges throughout the graph.

B or D?

Range - y axis

Domain - x axis

You can see that the x axis goes to 25 and y axis goes till 175.

Therefore the answer is B

Hope this helps you!

8 0
2 years ago
13: how many pairs of defective blue jeans will joshua find if he checks 252 pairs?
valkas [14]

Answer:

Step-by-step explanation:

Rjdjekeoekwodeosaksndnskskskdlfkgrkxkdjxjxjsjxjxjdkxkfkgkskskfkxkdlckffkkdkxkdkdkkfgjdjskwodkkdskskdkdkdkdkdkdkdkdkdkdkddkdkkdkddkdkddkddkdkdkakakaakakakakakakakakaakalalkddkgjgjgjdksfkskdkfjfj

4 0
3 years ago
HELP PLEASE HURRY....57 POINTS
erma4kov [3.2K]
Ok let me try my best, I’ll see what I can do
8 0
2 years ago
20 Points! <br><br> Solve for x
Marrrta [24]

Answer:

so all x's have to be added together.

8x+5x+10x+7x=30x

-2+3=1

1dividedby30=30

x=30

hope this helps


7 0
2 years ago
Read 2 more answers
Nick has a bag of marbles. Without looking in the bag, he
Ulleksa [173]

Answer:

Step-by-step explanation:

Ok wait. Try add

4 0
3 years ago
Read 2 more answers
Other questions:
  • Write $<br> 55.26 in expanded form
    13·2 answers
  • EXPERTS/ACE PLEASE HELP!!
    12·1 answer
  • 4 consecutive odd integers add up to -200. Find the integers.
    15·1 answer
  • While at a bakery, Chad decides to purchase some cupcakes and brownies to share with his friends. He can spend no more than $13,
    9·1 answer
  • Can someone plz help me?​
    11·2 answers
  • Please help i keep getting the wrong answers
    8·2 answers
  • Evaluate 1/4xy if x = -2/3 and y = 3/5<br><br> Pls i need this for tomorrow
    12·1 answer
  • Tell whether the following sequence is geometric or not. If geometric find r
    7·1 answer
  • An investigation of the relationship between height of a child and age (in months) found that age explained 64% of the variation
    8·1 answer
  • Aliana is a certain age, and her mother is six times as old as her. In ten years'
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!