17. He needs 2cupsof flour to make 20 biscuits so he needs x cups if flour to make 30 biscuits
So he needs 3 cups of flour to make 30 biscuits.
So the answer is B
18. She charges 30$ for 2 hours so she charges x$ for 5hours.
so she charges 75$ for 5 hours.
So the answer is I
19. (an hour is 60 minutes)
She walks 2 blocks in 15 minutes so she walks x blocks in 60 minutes.
So she walks 8 blocks in 60 minutes.
So; the answer is: 8
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x^6 + 10ax^3 + 2ax^3 + 20a^2
(x^3 + 10a)(x^3 + 2a)
answer: (x^3 + 10a)(x^3 + 2a)
Hope it helps :)
Answer: x = 75/2
Step-by-step explanation:
First, separate the 1/3d and 10 by subtracting 1/3d to the right side so the equation is now: 10 = 3/5d - 1/3d
Next, Make the two fractions have a common denominator: (3/5 = 9/15) and (-1/3 = -5/15) and solve to get 4/15x
Then, your equation should be 10= 4/15x
So now multiply the 10 by 4/15's reciprocal (15/4) to get the variable x by itself: 10 × 15/4 or
(10×15) / (4×1) to get x = 150/4 now simplify
4 can go into 150 twice so the simplified answer is 75/2 or 37.5 in decimal form