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worty [1.4K]
3 years ago
11

Ivana got 21/25 on her science test. She got 86% on her math test. Which of her test marks is better? Explain.

Mathematics
1 answer:
mojhsa [17]3 years ago
7 0
Her math test is better.
if you take 21/25 you get 84%
86% > 84%
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Savatey [412]

A parabola is U shaped.

Answer:

C

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3 years ago
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Dale is saving money to buy a game. So far he has saved $30, which is two-thirds of the total cost of the game. How much
Anuta_ua [19.1K]

Answer: T

=

$

36

Step-by-step explanation: Hmm...

Let's organize this problem.

Since he saved

$

30

, he as

$

30

Now, that is five-sixths of the total cost of the game.

Let's name the total cost

T

.

If we have a fraction of something, say, half of four, we multiply the fraction by the whole.

half of four

1

2

⋅

4

Similarly, two-thirds of the total can be represented as:

5

6

⋅

T

Now, the problem is telling us that

$

30

is equal to the expression above.

Therefore,

2/3

T

=

30

=>

6

5

⋅

5

6

⋅

T

=

6

5

⋅

30

1

=>

1

⋅

T

=

6

5

⋅

30

1

=>

T

=

$

36

4 0
2 years ago
Karina ate 1/2 of the muffins. Ulysses ate 1/4 of the muffins. Zawanna ate 1/5 of the muffins. Juan ate the rest of the muffins.
erastovalidia [21]

Answer:

1/20

Step-by-step explanation:

Karina ate 1/2 of the muffins. Ulysses ate 1/4 of the muffins. Zawanna ate 1/5 of the muffins. Juan ate the rest of the muffins. What fraction of the muffins did Juan eat?

Let the total number of muffins = 1

Hence:

The fraction of muffins Juan ate =

1 - (1/2 + 1/4 + 1/5)

Lowest common denominator is 20

1 - ( 10 + 5 + 4/20)

1 - 19/20

= 1/20

The Fraction of muffins Juan ate is 1/20

4 0
2 years ago
Bill's recipe for onion soup call for 4.0lb of thinly sliced onions. If an onion has an average mass of 115g, how many onions do
musickatia [10]

Answer:

1. 16\ onions

2. 4,040.91\ kg

Step-by-step explanation:

1. You know that the average mass of an onion is 115 grams and Bill needs 4.0 pounds.

Then, since 1\ lb=453.592\ g, we can make the following conversion:

(4.0\ lb)(\frac{453.592\ g}{1\ lb})=1,814.37\ g

Then, the number of onions Bill needs is:

(1,814.37\ g)(\frac{1\ onion}{115\ g})=15.77\ onions ≈ 16\ onions

2.  Since 1\ kg=2.20462\ lb, we can make the following conversion:

(11\ lb)(\frac{1\ kg}{2.20462\ lb})=4.98\ kg

 Knowing that all the potatoes sold today at the store bring in $1,420 and 4.98 kilograms of potatoes is $1.75, we can calculate the amount of kilograms the grocery shoppers bought:

(\$1,420)(\frac{4.98\ kg}{\$1.75})=4,040.91\ kg

6 0
3 years ago
Find the value of 3a^2+2b, If a=3 and b = 4.<br><br>An explanation would be great.
vichka [17]

Answer:

=35

Step-by-step explanation:

3(3) ^2 + 2(4)

= 3(9) + 8

= 35

Where you see a, substitute with 3 and where you see b, substitute with 4

Just follow the steps above.

8 0
2 years ago
Read 2 more answers
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