Answer:
10 and 14
Step-by-step explanation:
Let the first number be x and the second number be y, then
x + 18 = 2y → (1)
y + 16 = 3x → (2)
Rearrange (1) expressing x in terms of y by subtracting 18 from both sides
x = 2y - 18 → (3)
Substitute x = 2y - 18 into (2)
y + 16 = 3(2y - 18) ← distribute
y + 16 = 6y - 54 ( subtract 6y from both sides )
- 5y + 16 = - 54 ( subtract 16 from both sides )
- 5y = - 70 ( divide both sides by - 5 )
y = 14
Substitute y = 14 into (3) for corresponding value of x
x = (2 × 14) - 18 = 28 - 18 = 10
The 2 numbers are 10 and 14
Answer:
x=1/8
Step-by-step explanation:
Answer:
1. 31.25 square m, 2. S=478 square m, 3. 6.25 square m
Step-by-step explanation:
------------------- Surface Area of the Rectangular Prism(2ND ANSWER)
S=2(lw)+2(lh)+2(wh)
S=2(11*9)+2(7*11)+2(7*9)
S=2(99)+2(77)+2(63)
S=198+154+126
S=478 square m
--------------------- Surface area of Cube(1ST ANSWER)
S=6(lw) -2.5^2
S=6(6.25)-6.25(overlapping area A)
S=5(6.25)
S=31.25 square m
-------------------------------------------------- Overlapping area A(3RD ANSWER)
-> 6.25 square m
--------------------------------------------------- Surface area of composite figure(4th ANSWER)
=478+37.5-2(2.5)
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Answer:
23
Step-by-step explanation:
Insert 3 for "x"
f(3)=23
2. Fraction
3. -1 & 1/4
4. -5/7