MATHEMATICS HIGH SCHOOL

anne has 24 more cards than devi. anne finds that 3/5 of devi's cards are equal to 1/2 of her cards. how many cards does anne have?

Answers

Answer 1
Answer: if 1/2 of 24 are 3/5 of devi's cards, then 1/2(24)=3/5x, 12=0.6x, 20=x. Devi has 20 cards
Answer 2
Answer: ok so A(Anne) = D(Devi) + 24
and 1/2A = 3/5D
which is equal to A = 6/5D
which means that the 1/5 extra must = 24
so A = 6*24 
 A = 144

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Is it true or false an angle bisector cannot be a median

Answers

False, if youre talking about the median/bisector of a triangle, an angle bisector can be a median if and only if the bisected angle is the apex of an isosceles or equilateral triangle.

A glacier moves about 3 inches every 9 hours. At that rate, about how far does the glacier move in 36 hours?

Answers

Answer:


Step-by-step explanation:

Since 36 is divisible by 9 we can divide 36 by 9 to get 4 then you multiply 4 by the 3 inches to get 12. Or you could find the unit rate 1:12 and get it from there hope this helps!
12 inches

3 inch in 9h
1 inch in 3h
12 inch in 36h

I need help please. message please

Answers

V = lwh
w = V/lh

C = πd
d = C/π

A = 1/2 h(b1 + b2)
2A = h(b1 + b2)
h = 2A/(b1 + b2)

Someone help please?Two students are using estimation to determine reasonable solutions to the expression 89.1 x 9.3 Katie uses the 99 x 10. Amaya uses the expression 89 x 9.

A.Which is the best comparison of the estimates and the actual product?

B.Both estimates will be less than the original product.

C. Both estimates will be greater than the original product.
Katie’s estimate will be less than the actual product, and Amaya’s estimate will be greater than the actual product.

D. Katie’s estimate will be greater than the actual product, and Amaya’s estimate will be less than the actual product.

Answers

Answer:

Amaya's estimate is the closer one.

D. Katie’s estimate will be greater than the actual product, and Amaya’s estimate will be less than the actual product

Step-by-step explanation:

The original expression is 89.1 x 9.3. Katie changed the 89.1 to 99 (difference of 9.9) and the 9.3 to 10 (difference of 0.7). On the other hand, Amaya changed the 89.1 to 89 (0.1 difference) and the 9.3 to 9 (0.3 difference).

Therefore the best comparison would be Amaya's estimate since her numbers are closer to the original expression.

Katie's estimate will be greater than the actual product because she rounded up the numbers and Amaya's estimate will be less than the actual product because she rounded down the numbers.

Choice D), since Katie went way over the decimals, and Amaya went slightly under to the closest number

Reginald has to put fertilizer on his yard. The bags of fertilizer cost $4.79 and cover 3500 square feet. Reginald's yard is a rectangle that measures 427 ft by 231 ft. How much will he spend on fertilizer?​

Answers

He'll spend 138.91 dollars.

First multiply 427 and 231 to find out how much square feet you need to cover. Then divide the number by 3500 to see how many bags of fertilizer you need. Since there is a remainder, he'll have to buy another bag. Then, multiply the number of bags needed with the price of each bag to get the amount of money spent.

11 kl = _____ l

1.1
110
1,100
11,000

Answers

Answer:

11,000

Step-by-step explanation:

The kl is a kiloliter.

10 milliliter makes a centiliter, 10 centiliter makes a deciliter and 10 deciliter makes a liter.

10 liters (l) make a decaliter, 10 decaliter makes a hectoliter and 10 hectoliter makes a kiloliter (kl).

As such, 1000 l = 1kl

11kl = 11 × 1000l

= 11,000l
the answer is 11,000
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