MATHEMATICS
MIDDLE SCHOOL

How many yards of ribbon did Lynn buy?

Answer:

Answer: Lyn bought 8.25 yards of ribbon.

Step-by-step explanation:

Given : Lynn paid $12.21 for ribbon.

The cost of ribbon per yard was $1.48.

Then by using division operation , the length of ribbon ( in yards) bought by Lyn is give by :-

Hence, the length of ribbon bought by Lyn =8.25 yards

i.e. Lyn bought 8.25 yards of ribbon.

Answer: If you divide $12.21 by $1.48 you will get 8.25 meaning Lynn bought 8.25 yards of ribbon

COLLEGE

One serving of granola provides 4% of the protein you need daily. You must get the remaining 48 grams from other sources. How many grams of protein do you need daily?

You will need 46.08 grams.

48 • 0.04 (4%) = 1.92

multiply 48 by 0.04 to find what 4% of 48g is

48 - 1.92 = 46.08

then subtract the 4% to get the rest amount

48 • 0.04 (4%) = 1.92

multiply 48 by 0.04 to find what 4% of 48g is

48 - 1.92 = 46.08

then subtract the 4% to get the rest amount

MIDDLE SCHOOL

Show how to multiply 46.93×1.8

To start off this is multiplication and not addition nor subtraction where you have to line up your numbers like 46.93 + 1.98 No, instead you put them in any order such as 46.93 x. 1.98 --------------- 37544 421370 + 469300 ------------------ 92.9214 ------> This is your answer! 1)Multiply the 3 in 46.93 to the 8 in 1.98 which is 24. 2) Then you multiply the 9 in 46.93 to the 8 in 1.98 which gives you 72 and don't forget to add the 2 from 24. You get 74. 4)You then multiply the 6 in 46.93 to the 8 in 1.98 and you get 48, add the 7 from 74, and you get 55. 5) You multiply the 4 in 46.93 to the 8 in 1.98 and you get 32, plus the 5 from 55 and you get 37. Your first answer should be 37544. 6) After you get this answer, you add a zero underneath the 4 in the one's place from your previous answer. 7) This step might be a little hard to remember, but you do the same procedure as you were doing in steps 1-6. This time on the other hand, you multiply each value in 46.93 to the 9 in1.98. 8)After completing those exact steps, your secondary answer should be 421370. 9) Once having this answer, you multiply 46.93 to the 1 in 1.98 and your third answer should be 469300. 10) The next step is to add up all three of your answers together and you get the final answer. You should be getting 929214. 11) The last and final step is to count the spaces of decimals your multiples' have which are 4, and you move 4 spaces to the left and you get 92.9214.

COLLEGE

An urn contains eight blue balls and seven yellow balls. if six balls are selected randomly without being replaced, what is the probability that of the balls selected, two of them will be blue and four of them will be yellow

to be sure that 2 of them will be blue i have to select 7+2=9 balls

7+8=15 balls in the urn

P=9/15

to be sure that 4 of them will be yellow i have to select 8+4=12 balls

P=12/15

HIGH SCHOOL

10. simplify the rational expression by rationalizing the denominator.( 1 point ) 4√150/√189x

Rationalizing the denominator, simply means "getting rid of that pesky root at the bottom", and we do so by simply multiplying it by something to take it out, of course, we multiply the bottom, we have to also multiply the top,