Let x be the time she ran and y be the time she walked
then distance ran = 25x and distance walked = 5y
so 15x + 5y = 42
and x + y = 4
* second equn. by -5:-
-5x - 5y = -20
add this to the first equn:0
10x = 22
x = 2.2
distance she ran = 2.2 * 15 = 33 km
Answer:
3 4, 5 0 6
Step-by-step explanation:
88,946 - 54,440 = 34,506
So missing number :
3 4, 5 0 6
A matrix is an array of numbers and may be presented in 3x3, 4x4 and so on forms. The 3x3 corresponds to the coefficients of the given algebraic equation. It also corresponds to the placement of the given coefficients. In here, <span>element a23 in matrix A is 8. </span>
It would be 9720 because 18 times 45 would be 810 then times that by 12 would equal 9720.
Hey there!
Here is your answer:
<u>The proper answer to this question is option B "false". </u>
Reason:
<span><u><em>To solve for y in the equations 2x + y = 5, subtract 2 from both sides of the equation. This statement is false. In order to solve this you have to divide 2 on both sides.</em></u>
<em>Therefore the answer is option B.</em>
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit
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