Answer:
i do!
Step-by-step explanation: I have a Science exam and also have a math NWEA wich sucks cuz my teacher didint lly teach us alot this year and only payed attention to the ppl in class and not to the ppl online:( so kinda scared lol. its like 40-50 questions and we have 2-3 days to do it and we did some yesterday and im only only 7
Answer:
and
Step-by-step explanation:
Since they are similar, the length CE is a ratio of length AC, length CD is a ratio of length AB and length DE is a ratio of length BC.
Substituting the values,
×
××
The answer is: "
11 " .
____________________________________________________ → "
x = 11 " .
____________________________________________________Explanation:____________________________________________________Set up the ratio/ proportion as a fraction:
6 cm / 48 cm = 5 cm / (3x + 7) ;
→ The "cm" units cancel out; since: "cm/cm = 1 " ;
→ The "6/48" = "(6 ÷ 6) / (48 ÷ 6) = " 1/8 " ;
→ Rewrite as:
;
Now, we can "cross-multiply" :
__________________________________________________<u>Note</u>: ;
;
{b
; d
} .
__________________________________________________ As such:
1 * (3x + 7) = 8 * 5 ;
→ 3x + 7 = 40 ;
Subtract "
7" from each side of the equation:
→ 3x + 7 − 7 = 40 <span>− 7 ;
</span>
to get:
→ 3x = 33 ;
Now, divide each side of the equation by "
3" ;
to isolate "x" on one side of the equation; & to solve for "x" ;
→ 3x / 3 = 33 / 3 ;
to get:
____________________________________________________ → "
x = 11 " .
____________________________________________________ →
The answer is: "
11 " .
____________________________________________________
Answer:
310
Step-by-step explanation:
9 + 100 = 109
109 + 1 = 110
110 + 200 = 310