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ASHA 777 [7]
3 years ago
8

PLEASE HELP(Mainly 15 & 16) I can give BRAINLIEST!!!

Mathematics
1 answer:
lisov135 [29]3 years ago
6 0

Answer: sorry I don't get it but the answer for 16 is B sorry

Step-by-step explanation:

What do they teach you they are weird t doesn't make any sense

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All about simulitious equations​
Korolek [52]

Answer:

On occasions you will come across two or more unknown quantities, and two or more equations

relating them. These are called simultaneous equations and when asked to solve them you

must find values of the unknowns which satisfy all the given equations at the same time.

Step-by-step explanation:

1. The solution of a pair of simultaneous equations

The solution of the pair of simultaneous equations

3x + 2y = 36, and 5x + 4y = 64

is x = 8 and y = 6. This is easily verified by substituting these values into the left-hand sides

to obtain the values on the right. So x = 8, y = 6 satisfy the simultaneous equations.

2. Solving a pair of simultaneous equations

There are many ways of solving simultaneous equations. Perhaps the simplest way is elimination. This is a process which involves removing or eliminating one of the unknowns to leave a

single equation which involves the other unknown. The method is best illustrated by example.

Example

Solve the simultaneous equations 3x + 2y = 36 (1)

5x + 4y = 64 (2) .

Solution

Notice that if we multiply both sides of the first equation by 2 we obtain an equivalent equation

6x + 4y = 72 (3)

Now, if equation (2) is subtracted from equation (3) the terms involving y will be eliminated:

6x + 4y = 72 − (3)

5x + 4y = 64 (2)

x + 0y = 8

5 0
2 years ago
If you have a rectangular bathtub, what would represent the volume?
zlopas [31]
The amount of water that fills up the tub !
7 0
2 years ago
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Joshua has $24.He used 5/8of his money.How much money did he spend
zhenek [66]
So 5/8 of $24
5/8 * 24
15

Joshua spent $15.

Hope this helps :)
5 0
3 years ago
Math question please !!!
Verdich [7]
In the table y is increased 70 for every 1 in x (210/3 = 70) on the graph for every 1 increase on x y increases by 55 (110/2 = 55) so for the graph for x = 11, y =55 x 11 = 605 for the table for x = 11, y = 11*70 = 770 the difference is 770-605 = 165 the 2nd answer is the correct one.
5 0
3 years ago
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A bag contains 12 blue marbles and 8 blue what is the ratio of blue to red
luda_lava [24]

Answer:12:8 or 12 to 8 or u could do it in fraction form

7 0
3 years ago
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