MATHEMATICS HIGH SCHOOL

2x-y ;x=5,y=1 evaluating algebraic expressions

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

2(5)-(1)

10-1

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4. Here are the ingredients needed to make 12 shortcakes.Shortcakes
Makes 12 shortcakes
50 g of sugar
200 g of butter
200 g of flour
10 ml of milk
Liz makes some shortcakes.
She uses 25 ml of milk.
(a) How many shortcakes does Liz make?

Answers

The answer is 30 shortcake

A computer simulation tossed a 10-faced die 5 times. How many possible outcomes exist?

Answers

The answer to the problem wherein a computer simulation tossed a 10-faced die 5 times and you have to compute for the possible outcomes is simple. The answer is 18,144, 000 possible outcomes (if it's a combination). I got this through simply getting the 10! (3,628,800) and multiplying it 5.

However, if order is important (permutation), the number of possible outcomes is is 30240.

Answer:

B 100,000

Step-by-step explanation:

10^5 = 100,000

When 80% of a is added to the number, the result is 252. What is the number

Answers

Use the equation .8x + x = 252
x is the number, and .8 is the decimal equivalent of 80%.

1.8x = 252

x = 140

Final answer:

To find the original number, 'a', in this algebra problem, we set up and simplify the equation a + 0.80a = 252 to get a = 252 ÷ 1.80. Solving this equation will give us the value of 'a'.

Explanation:

The subject here is mathematics, specifically algebra. The problem can be solved by setting up an equation that represents the described scenario. Let 'a' be the unknown number. The problem states that adding 80% of 'a' to the number gives us 252. This can be expressed as the equation: a + 0.80a = 252.

By simplifying this equation, we get 1.80a = 252. To find the value of 'a', we divide both sides of the equation by 1.80. Doing that, we get a = 252 ÷ 1.80. Hence solving this will give us the original number

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Divide 36 by the difference of 16 and 4

Answers

The answer is 3. First you solve 16-4 and you get 12. Then you solve 36/12 which equals 3.

You subtract ➡️. first 16-4= 12
Then divide ➡️. 36 divided by 12 is =3 so the answer is 3

An isosceles triangle has base angles that each measure 48°. Which equation can be used to find x, the measure of the third angle of this isosceles triangle in degrees?

Answers

Answer:

Step-by-step explanation:

It would be 48+48+x=180, since 3 angles in any triangle will always measure 180, by definition of a triangle. I guess you could also do 2(48)+x=180, but the first equation just makes it more intuitive I guess. The reason why this works is because since 3 angles must equal 180, the missing angle, x, must be the value of 180-48-48, since that would be the remaining value needed to make a triangle

You know the distance between two cities is 140 miles. What is distance in kilometers?

Answers

It is known that 1 mile = 1.609 kilometers. So the distance between these two cities, in kilometers, is equal to 140*1.609, which gives us ~225km.

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Blank divided by 9 equals 6