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Algebra
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Algebra
A serving of 2 cookies has 150 kilocalories and 8 grams of fat. What % of total kcals are from fat?
Algebra
The following equation has a positive and a negative solution.
( v minus 3 over v minus 1 ) = ( 2 over v + 2 )
Solve the equation and enter the positive solution in the box below (as an integer or rounded to one decimal place as appropriate).
( v minus 3 over v minus 1 ) = ( 2 over v + 2 )
Solve the equation and enter the positive solution in the box below (as an integer or rounded to one decimal place as appropriate).
Algebra
The chance of getting a particular disease sometime during your lifetime is estimated at 1 in 25.
Smoking increases the risk of developing the disease during your lifetime by 10%.
How many people out of a group of 1000 smokers would you expect to get the disease sometime during their lifetime?
Enter your answer as a whole
Smoking increases the risk of developing the disease during your lifetime by 10%.
How many people out of a group of 1000 smokers would you expect to get the disease sometime during their lifetime?
Enter your answer as a whole
Algebra
In one country during one year, 796613 women gave birth. Of these women, 3344 gave birth to identical twins. Use these data to estimate how many women, out of a group of 1000 pregnant women, you might expect to give birth to identical twins.
Choose the two correct options below.
Select one or more:
The calculation is ( 3344 multiply sign 1000 over 796613 ).
The expected number of women is 42.
The expected number of women is 4.
The calculation is ( 3344 multiply sign 1000 over 793269 ).
The expected number of women is 420.
Choose the two correct options below.
Select one or more:
The calculation is ( 3344 multiply sign 1000 over 796613 ).
The expected number of women is 42.
The expected number of women is 4.
The calculation is ( 3344 multiply sign 1000 over 793269 ).
The expected number of women is 420.
Algebra
The mass of a particular substance is known to grow exponentially at a rate of 12.5% per week. Its initial mass was 34 grams and, after t weeks, it weighed 143 grams.
The equation modelling this growth is
34×1.125 t = 143.
Use the method of taking logs to solve this equation for t, giving your answer correct to the nearest week.
(Your answer should be a number, without units)
The equation modelling this growth is
34×1.125 t = 143.
Use the method of taking logs to solve this equation for t, giving your answer correct to the nearest week.
(Your answer should be a number, without units)
Algebra
Write true or false and justify your answer
1) the function f:R to R defined by f(x) = cos x is one one
1) the function f:R to R defined by f(x) = cos x is one one
Algebra
What's 8x8 ?
Algebra
Cole is packing a crate with boxes of vegetables that weigh 3 pounds each.The empty crate weighs 2 pounds. He wants the total weight of the crate with the boxes to be less than 26 pounds . If x represents the number of boxes that Cole can pack in the crate, write an inequality can be used to find the value of x
Algebra
Mr. Rosarios land is 20 meters wide and 38 meters long if he is to proportionally increase the size os his lot so that it becomes 45 meters wide what would his length be?
