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3 years ago

Easy ! Quick ! Easy.

Mathematics

2 answers:

Reil [10]3 years ago

8 0

Answer:

2/5 or 40%

Step-by-step explanation:

there are 10 possible ways to choose 2 cards:

19,13

19,10

19,14

19,22

10,13

14,13

22,13

10,14

10,22

14,22

there are only 4 pairs whose sum is greater than 32:

19,14

19,22

13,22

14,22

PolarNik [594]3 years ago

4 0

Answer:

3/5

Step-by-step explanation:

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Terry wants to divide his 120 baseball cards into two groups, so that the ratio of the number of cards in the first group to the

Naddik [55]

Let the number of cards in each group be 2x and 3x.
So,
2x + 3x = 120
5x = 120
x = 120 / 5
x = 24
Number of cards in each group is
2x = 2 × 24 = 48
3x = 3 × 24 = 72

7 0

3 years ago

Sauron [17]

Answer:

Step-by-step explanation:

"Four times a number" in symbols is "4n."

6 0

3 years ago

A rectangle has an area of 80cm² and a perimeter of 48cm.

OLEGan [10]

Answer:

20,4

Step-by-step explanation:

Suppose that x, y are the the length and width

Area=x*y=80

Parameter=2(x+y)=48....x+y=24

Xy=80...x(24-x)=80...x=20,y=4

4 0

3 years ago

You ate three of the eight pizza slices. You paid $9.45 as your share of the cost of the pizza. Write a one step equation to fin

Tema [17]

Answer:

Step-by-step explanation:

you ate 3

you paid $9.45 for the 3

to find the cost of the whole pizza you need to know how much each slice costs so

9.45 / 3 = $3.15 a slice

so each slice is $3.15 and there are 8 slices and you need to know how much they cost altogether so

3.15 * 8 = $25.20

7 0

3 years ago

Read 2 more answers

Find the area please

tatuchka [14]

Answer:

Step-by-step explanation:

Recall that the area of a triangle is given by:

$\displaystyle A = \frac{1}{2} bh$

In this case, the base is x and the height is y. Hence:

$\displaystyle A = \frac{1}{2} xy$

We can write the following ratios:

$\displaystyle \sin \alpha = \frac{x}{12} \text{ and } \cos \alpha = \frac{y}{12}$

Solve for x and y:

$\displaystyle x = 12\sin \alpha \text{ and } y = 12\cos \alpha$

Substitute:

$\displaystyle A = \frac{1}{2}\left(12\sin \alpha\right)\left(12\cos \alpha\right)$

And simplify. Hence:

$\displaystyle A = 72\sin \alpha \cos\alpha$

In conclusion, our answer is D.

6 0

3 years ago