Several people were polled regarding their favorite type of dessert. They were asked to choose one of the following: ice cream, cake, candy, or cookies. 10% cookies, 30% candy, 25% cake, 35% ice cream. If forty people were questioned, how many of them said they prefer ice cream
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Answer 1
Answer:
So notice the total number of people is 40, we need to find the number that likes ice cream
so simply convert the 35% into a decimal (0.35) then multiply it by 40
40 x .35 = 14 people
Answer 2
Answer:
well first you would create a percent pororpotion
Given that the equation of a straight line is -4x 2y=16, what is the value of the gradient and of the y-intercept: Gradient: Y-intercept:
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gradient is if you have ax+by=c gradient (aka slope)=a/b
we have -4x+2y=16 a=-4 b=2 gradient=-4/2=-2
y intercept is when the line crosses the y axis, also that is when x=0 so set x=0 and solve for y -4(0)+2y=16 0+2y=16 2y=16 divide 2 x=8 y intercept=8
gradient=-2 y intercept=8 (y=8 aka point (0,8))
SungHee empties her piggy bank and finds that she has 200 quaters,150 dimes,and 300 pennies.How much money does she have?Explain
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So first find out how much each is worth. Quarter= 25 cents Dime= 10 cents Pennies= 1 cent
Then multiply each by how much each is worth.
200 150 300 x x x 1 25 10 -------- ------ -------- 300 1000 1500 + 4000 ------ 5000
Then count 2 from the back and add a period.
$50.00 $15.00 $3.00
And then add them
$50.00 + $15.00 + $3.00 -------------- $68.00
So SungHee has $68.00
A pitcher contains 40 fluid ounces of iced tea. Shelby pours 3 cups of iced tea. How many pints of iced tea are left in the pitcher? show your work.
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1 fluid ounce is 0.125 cup 40 fluid ounce is 5 cup shelby pours 3 cup 5 - 3 = 2 There is 2 fluid ounce left. 1 cup is 0.5 pint. 2 รท 0.5 = 1 There were 1 pint of iced tea left in the pitcher.
there is 1 pint of tea left in the pitcher
24 kids in miss p class collected an average of 18balls.miss lees kids collected sn average of 21balls.how much more did miss lees kids collected.show all workings
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miss lees class collected 3 more ball because 21-18 is 3. if i collect 18 balls and my friend collects 21 balls and then we add 21+18 we get 39 and then we put 39 in 13 equal groups we have 3in each group that is why they collected 3. 21-18=3 add 21+18=39 put in equal groups divide 39 with 3 get thirteen make equal group get 3 in each group
*21-18=3 *21+18=39 *39 divided with 3=13 * 3 in each group *Answer 3
PLEASE DON'T SKIP
Solve the system of equations.
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2x + 3y = 1
y = 3x + 15
There's not much you can do with the first equation, because it has two variables in it ... 'x' and 'y' . No matter how much you move them around, you'll never be able to get either one equal to just a number. Is there any way you could get rid of one of the variables in the first equation, and have just 1 letter in it to solve for ?
Absolutely ! The second equation tells you something that 'y' is equal to, (3x + 15). "EQUAL" is very powerful. It means that wherever you see 'y', you can put (3x + 15) in its place, and you won't change anything or upset anything. One thing you can do is take that (3x + 15) from the 2nd equation, and put it right into the first equation in place of 'y'. You'll see how that helps as soon as you do it.