Answer:
Step-by-step explanation 10 + 2.50d = 850
David starts with $10 and each day he earns $2.50. The d represents a variable and can be any number.
To find d you must solve the equation.
10 + 2.50d = 850
2.50d = 840 (subtract 10 from 850)
d = 336 (divide 840 by 2.50)
It will take David 336 days to save $850.
<span>2(a+b)=c
2a + 2b = c
2b = c - 2a
b = (c - 2a)/a
answer
</span><span>D. b = (c−2a)/2 ; distribute 2 to get 2a+2b, subtract 2a, then divide by 2.</span>
Answer: D
Step-by-step explanation:
Answer:
$16
Step-by-step explanation: I did the math in the comments.
Answer:
27/14
Step-by-step explanation:
to divide by a fraction flip the fraction over and multiply
3/7 divided by 2/9
flip 2/9
3/7 times 9/2
just multiply the top and bottoms by each other
27/14
