I hope this helps, i got it from a cheat sheet online
Answer:
(C) 5
Step-by-step explanation:
x+7=2y
<em>Subtract 7 from both sides</em>
x=2y-7
2y-7=x
<em>Multiply both sides by 2</em>
4y-14=2x
y=2x−1
<em>Add 1 to both sides</em>
y+1=2x
<u>Combine equations:</u>
y+1=4y-14
<em>Add 14 to both sides</em>
y+15=4y
<em>Subtract y from both sides</em>
15=3y
3y=15
<em>Divide both sides by 3</em>
y=5
<u>The answer is </u><u>(C) 5.</u>
Answer:
5/6
Step-by-step explanation:
Step 1: Find Alicia's share of the gift. To do this, all you have to do is multiply 120 by 2/5, which is 40%. 120 * 40% (0.4) is 48. Alicia's share is $48.
Step 2: Find Jason's share of the gift. In this case, divide 120 by 3. 120/3 is 40. Jason's share is $40.
Step 3: Express the numbers as a fraction and simplify it. 40/48 is the common fraction. Find the GCF of 40 and 48. When you solve for it, the GCF is 8. Divide both the numerator and the denominator by 8. 40/8 is 5/ 48/8 is 6. There. 5/6 is our simplified fraction, which is the ratio.
Answer:
about 54% of the people surveyed were females
Step-by-step explanation:
to calculate the % of females out of everyone, you need to add everyone up, and then add up only the females.
119+150+447+735+1174+103+171+512+710+756=4877
4877 is the Total number of people surveyed
119+150+447+735+1174=2625
2625 is the total number of females surveyed
so
to convert 2625/4877 to a %, first turn it into a decimal
2625/4877=0.538
now multiply 0.538 by 100
0.538*100=53.8%
so about 54% of the people surveyed were females
