Answer:
17 <u>1</u>
3
Step-by-step explanation:
= <u>67</u><u>5</u>+ <u>3</u> x = <u>53</u>
100 8 4
------------------------- × 1000
6,750+ 375x = 13,250
375x = 6,500
x = <u>6</u><u>,</u><u>5</u><u>0</u><u>0</u> = <u>2</u><u>6</u><u>0</u> = <u>5</u><u>2</u> = 17 <u>1</u>
375 15 3 3
Step-by-step explanation:
mean =10
sum of no =7+5+0+1+3+4+h=20+h
N=7
now
mean=sum of no/N
10=20+h/7
10×7=20+h
70-20=h
h=50
Answer:
The new area will be 1 1/2 of the old area
Step-by-step explanation:
Answer:
6 L
Step-by-step explanation:
Given two solutions:
1st solution is 90% saline solution. Let the volume of this solution be 
litres.
2nd solution is 50% saline solution. Volume of this solution = 4 L
Resultant solution is 74% saline.
To find:
The volume of 1st solution = ?
Solution:
Total volume of the 74% saline mixture = (4+) Litres
We can write equation here, as per the percentage of saline in the mixtures.
90% of L + 50% of 4 L = 74% of (+4)
Therefore, the volume must be <em>6 L</em>.
Answer:
F. 6s > 4s +8
Step-by-step explanation:
From a reference point at the beginning of the track, Ward's car will be located 4s+8 feet down the track after s seconds. That is, it starts 8 feet down the track, and increases its distance by 4 feet every second.
From the same reference point, Heskey's car will be located 6s feet down the track after s seconds. Its distance starts from zero and is increasing at the rate of 6 feet every second.
For Heskey's distance to exceed Ward's distance you want ...
6s > 4s +8 . . . . . . matches choice F
