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
kvasek [131]
3 years ago
12

Solve the simultaneous equations3x-5y=5​ and x+10y=4

Mathematics
1 answer:
bulgar [2K]3 years ago
7 0
3x - 5y = 5 ——> 6x - 10y = 10

6x - 10y = 10
x + 10y = 4
——————-
5x = 6
x = 1.2

1.2 + 10y = 4
10y = 2.8
y = 0.28

so, x = 1.2 and y = 0.28

hope this helps :)
You might be interested in
9. Your bank account has a balance of $145.67. You make a withdrawal
Nataliya [291]
There is $103.15 in your bank account.
4 0
3 years ago
9 (b + 7) =72 <br> what does B = ?
Neporo4naja [7]

Answer:

b=1

Step-by-step explanation:

9 (b + 7)= 72

9b + 63= 72

9b=9

b=1

unless you want the value when you plug the b back in with out solving then its 9

8 0
3 years ago
(AAAA HELP PLS XD WILL MARK BRAINLIEST) Nhia is setting up a marble tournament for the kids in her
aksik [14]

Given that we have 47 kids and each kid needs 10 marbles, find out how many bags of 24 marbles will we need.

First, we will multiply 47 by 10 to get the amount of marbles needed.

47 x 10 = 470

So, that means we need 470 marbles in total.

Then, we divide 470 by 24 to see how many bags of 24 marbles 470 marbles is.

470 / 24 = 19.5833

Since, we can't have 19.5833 bags, we have to check what it would be if we only used 19.

19 x 24 = 456

470 - 456 = 14

Since, 18 is the closest number of bags but it has less than 470 it would not be correct.

Therefore, the best answer would be B. 25 since it is better to have extra marbles but not a very wide margin.

4 0
3 years ago
At a competition with 8 runners, 2 medals are awarded for first and second
Dafna1 [17]

Answer: Option 'A' is correct.

Step-by-step explanation :

Since we have given that

Number of medals = 2

Number of runners = 8

We need to find the number of ways to award the medals.

We would use "fundamental theorem of counting" to find the number of ways.

So, number of ways is given by

8 × 7 = 56

Hence, option 'A' is correct.

4 0
3 years ago
Read 2 more answers
Check all of the ordered pairs that satisfy the equation below.
stiv31 [10]

Answer:

Hey there!

y=3/4x shows that the y-value is always 3/4 of the x-value.

Thus, if x is 4, y is 3. It always fits the 4:3 ratio.

The ordered pairs that satisfy this equation are: 28:21 and 16:12

Let me know if this helps :)

6 0
3 years ago
Other questions:
  • 6. Two-thirds of a number is equal to 20. What is<br> the number?
    12·2 answers
  • A line segment has a length of approximately 10cm. If a compass is set to a width of 9cm, will it still be possibly to bisect th
    7·1 answer
  • For which value of c will the equation 6y−8=c+6y have an infinite number of solutions?
    8·1 answer
  • 6y&lt;18 I need help please
    6·1 answer
  • Find the value of this expression if x= -9
    14·1 answer
  • 0.75 tons of dirt cost $150.00. what is the price per pound of there are 2000 pounds in a ton
    9·1 answer
  • What’s -7 1/3 divided by 1 2/9
    11·1 answer
  • What is statics mean in a math problem?
    6·2 answers
  • Use the value of y (y=4) that you found for part b to correctly find the measures of AX and BD and list each step for each.
    9·1 answer
  • Determine whether the following is an expression or an equation. x+7
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!