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olga55 [171]
3 years ago
11

Perry was going to sell all of his stamp collection to buy a video game. After selling half of them he changed his mind. He then

bought fifteen more. How many did he start with if he now has 34?
Mathematics
1 answer:
andrezito [222]3 years ago
4 0
The answer is 38, because if you take away the 15 he bought afterwards (34-15) you get 19, and then since he sold half his collection you would double that (19×2) and that's 38.
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SashulF [63]
Answer: 1957 meters
Solution: 4506-2549=1957
Therefore she ran 1957 meters more on Monday than on Tuesday.
6 0
3 years ago
How many whole numbers are in 35?
Hoochie [10]

Answer:

12

Step-by-step explanation:

there are 12

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6 0
1 year ago
Find the value of x
marin [14]

Answer:

x=14

Step-by-step explanation:

The given triangle is a right triangle, meaning it is a triangle with a right angle, this is indicated by the box around one of the angles. When given a right triangle, one can use the right triangle trigonometric ratios. These ratios describe the relationship between an angle in a right triangle, and the sides in a right triangle. Such ratios are as follows,

sin(\theta)=\frac{opposite}{hypotenuse}\\\\cos(\theta)=\frac{adjacent}{hypotenuse}\\\\tan(\theta)=\frac{opposite}{adjacent}

Bear in mind that the way one names the sides, in the sense of (opposite or adjacent) will change based on the angle one uses to describe the triangle. However, the hypotenuse is the same no matter the angle, as the hypotenuse is the side opposite the right angle.

In this case, one is given one of the angles, and the side opposite the angle. One is asked to find the hypotenuse of the triangle. One can use the sine (sin) ratio to achieve this.

sin(\theta)=\frac{opposite}{hypotenuse}

Substitute,

sin(30)=\frac{7}{x}

Inverse operations,

x=\frac{7}{sin(30)}

Simplify,

x=14

5 0
3 years ago
Do these pair of values (x and y) represent two quantities that are proportional
Alexxandr [17]

Answer:they are

Step-by-step explanation:

5 0
3 years ago
A number is randomly picked from this list: 10, 20, 30, 40, 50. what is the probability of picking an even number
ivanzaharov [21]
Hey there! :)

There are 5 numbers.

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Hope this helps :)
7 0
3 years ago
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