Answer:
Step-by-step explanation:
Let the numbers be x and y. Then we got following equations:
- x + y = 34
- 1/2x + 1/3y = 14
<u>Double the second equation and subtract from the first one. Solve for y:</u>
- x + y - x - 2/3y = 34 - 2*14
- 1/3y = 6
- y = 3*6
- y = 18
<u>Find x:</u>
Answer:
A) 15
Step-by-step explanation:
a = 3 b = 5 c = 7
a + b + c
3 + 5 + 7 = 15
Answer:
11 inches
Step-by-step explanation:
you can cross multiply
inches cents
16 80
x 55
16×55 = 80x
80x= 880
x= 880/80
×= 11 inches
4 divided by 3/5
pretend that 4 has a denominator which is 1
4/1 divided by 3/5
when dividing always flip over the second fraction
4/1*5/3
multiply the numerators together
4*5=20
multiply the denominators together
1*3=3
answer:
20/3 or 6 2/3
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<span>Note that expression implies the derivative of sin(x) where x = π/6. We know that the derivative of sin(x) is cos(x). Therefore, cos(π/6) = √(3)/2. </span>
