You already know x+3y is 10 as they are both indicated as being the same on the diagram.
We then subtract 10 and 10 from the total perimeter, to figure out the top and bottom’s total length.
54-10-10=34
Now we add the top (3x-y) to the bottom (7x-2y) by collecting like terms.
3x-y+7x-2y=10x-3y
We form the simultaneous equation now.
x+3y=10
10x-3y=34
From here we can form a single equation.
x+3y+10x-3y=10+34
+3y and -3y cancel each other out so we now have:
x+10x=10+34
which is:
11x=44
Divide 44 by 11.
x=4
We now substitute x=4 into x+3y which we know equals 10.
(4)+3y=10
Subtract 10 by 4.
3y=6
Divide 6 by 3.
y=2
We now have the answer x=2 and y=4.
Answer:
E
Step-by-step explanation:
Answer:
10 1/9
Step-by-step explanation:
Round to the nearest whole number 35, 2, 7, 33, 25, 70, 75, 40, 42, 12, 15, 7, 44, 20, 25, 3, 65, 62
natulia [17]
The numbers 35, 2, 7, 33, 25, 70, 75, 40, 42, 12, 15, 7, 44, 20, 25, 3, 65, and 62 are all whole numbers.
- All natural numbers and 0 are considered whole numbers. They are real numbers without fractions, decimals, or negative integers.
- Rounding a number implies simplifying it while retaining its value close to what it was. The end output is less precise but more usable.
- In a given base, a round number is an integer that ends with one or more "0s." So, 590 is more rounded than 592 but less rounded than 600. A round number is frequently understood in both technical and casual language to stand for a value or values close to the nominal value represented.
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