Answer:
the answer is C
Step-by-step explanation:
You would multiply by 1.2 for example if you wanted to find 120% of 100 you would multiply by 1.2 and get 120
c. they are all parts of 12, and when added together they equal 11/12. The formula to solve non proportionate fractions*or with different denominators* is to CROSS multiply and make the denominators equal, then add the numerators and SIMPLIFY.
*Cross multiply to make the denominator equal (you can google how to make fractions equal)
then add the numerators together
then simplify. PLEASE BE CONSIDERATE OF THE FORMULA AND DONT BE INTIMIDATED BY THE LOOK OF THE PROBLEM. They all have the same formula or method of solving. Good Luck!! I hope this helps.
Step-by-step explanation:
7b-5b=-3+15
2b=12
b=12/2
b=6
<span>1.) -(3d-2x)
= 2x - 3d
</span><span>2.)-3ab/5b
</span><span>= -3a/5
</span><span>3.)〖(3/8)〗^3
</span>= 3^3 / 8^3
= 27/512
<span>4.) 2[5^2÷(3^2-2^2)+7]
= </span><span> 2[25÷(9-4)+7]
= </span> 2[25÷(5)+7]
= 2[5+7]
= 2(12)
= 24
<span>5.) What is the value of x/y when x=9/4 and y=3/5?
9/4 / 3/5
= 9/4 x 5/3
= 15/4
= 3 3/4 or = 3.75
6)
</span><span>algebraic expression :
p = # of pounds
</span><span>0.85p + 12
if p = 7 lbs the
0.85 (7) + 12
= 5.95 + 12
= 17.95
answer
total cost = $17.95</span>
