Answer:
3. 9
4. 5 pounds
5. 5/12 of a pound
Step-by-step explanation:
3. "at least 3/8" means to include that column in the count.
4. 3(1/4) + 4(3/8 ) + 3(1/2) + 2(5/8)
= 3/4 + 12/8 + 3/2 + 10/8 but we need a common denominator. LMK in the comments if you need help with that
= 6/8 + 12/8 + 12/8 + 10/8
= 40/8
= 5 pounds.
5. For the average, we add up all the weights, then divide by the number of kittens. Thankfully, we just added everything up in #4. Since we're going to be dividing 5 by 12, we'll end up with a decimal. But since the whole problem was written in fractions, we'll keep it in fractions.
40/8 divided by 12 kittens
40/8 divided by 12 = 40/8 muliplied by the inverse of 12 which is 1/12
40/8 x 1/12
= 40/96
Our numerator and denominator can be evenly dived by 8, so the fraction is reduced to
= 5/12
I'm happy to answer any questions.
Answer:
8 births to 1sf
Step-by-step explanation:
4.2m births per year in unspecified country.
4.2 / 0.000365 = 11506.8493 per day
11506.8493 / 24 = 479.452054 per hour
479.452054 / 60 = 7.99086757 per minute = 8 births to 1sf
Answer:
120
Step-by-step explanation:
1. if x times 80 is 12. you can divide 12 by 80 to get the percent. That is 15 percent.
2. so now you have to find 15 percent of a number = 18. you can solve that by dividing 18 by .15.
3. that is 120
Answer:
Step-by-step explanation:
sin A= 21/29
cos A=20/29
tan A=21/20
sin B =20/29
There's a special case of the quadratic formula called the Shakespeare Quadratic Formula (2b or -2b) that applies when the linear coefficient is even.
If you're planning on solving a lot of quadratic equations quickly, it's good to know.
Here we have
so
