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BARSIC [14]
3 years ago
7

How to solve an algebraic expression by putting values of unknown

Mathematics
1 answer:
andrey2020 [161]3 years ago
7 0

Answer:

Step-by-step explanation:

Algebraic expressions tend to have atleast one unknown variable in it. In order to solve the expression we need to assign a fixed value to that variable or isolate it if the expression is equal to another value. For example, in the following expression we have the variable x, if we give it a value of 5 we simply solve like a regular expression...

5x + 3

5(5) + 3

25 + 3

28

Therefore, if we swap the variable x for the value of 5 we would get a value of 28 in this algebraic expression.

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a circular picture whose diameter is 4 decimeter is framed in a rectangle board with dimension of 6 decimeter by 4 decimeter wha
avanturin [10]

Answer is \bf \dfrac{80}{7} dm².

In order to calculate the area of the board that can be seen, we need to calculate the area of the the rectangular board and the circular frame. The difference of both's area is the required answer.

Refer to the attachment for step by step solution. :)

6 0
3 years ago
Someone please help me
marusya05 [52]

Answer:

17 1/4mph

Step-by-step explanation:

As you can see, Sarah rides her bike 5 3/4 in 1/3 hours. All you need to do is multiply 5 and 3/4 by 3 since it's thirds. 5x3=15. 3/4x3=9/4. 9/4= 2 1/4. 15+2 1/4= 17 1/4mph.

7 0
3 years ago
Suppose the large number of auto accidents in a small town results in new legislation that requires all citizens of the town to
tangare [24]

Answer:

a. decrease

b. recklessly

c. increase

Step-by-step explanation:

Suppose the large number of auto accidents in a small town results in new legislation that requires all citizens of the town to install new anti-lock brakes on their cars. These new brakes cut the time it takes a car to stop by 50%, allowing drivers to avoid collisions with other cars and pedestrians more easily. The new brakes <u>decrease</u> the probability that a vehicle will collide with another vehicle but also give drivers an incentive to drive more <u>recklessly</u> which could potentially <u>i</u><u>ncrease</u> the number of car accidents.

Because the new brakes cut the time it takes a car to stop by 50%, allowing drivers to avoid collision easily, drivers may become confident and drive recklessly which could potentially increase the number of car accidents

5 0
3 years ago
Pls help giving all my points!! Find the probability of “landing” in the shaded region of the figures below. Round your answer t
34kurt

The probability of landing on the shaded region of the figure is 0.10

<h3>How to find the probability of landing on the shaded region?</h3>

The probability of landing on the shaded region can be calculated as follows;
area of the bigger circle = πr² = 3.14 × 25² = 1962.5 cm²

area of the smaller region = πr² = 3.14 × 8²  = 200.96 cm²

Therefore,

the probability of landing on the shaded region of the figure = 200.96 / 1962.5

the probability of landing on the shaded region of the figure = 0.10

learn more on probability here: brainly.com/question/22200970

#SPJ1

6 0
2 years ago
How do u do this LOTS OF POINTS
LuckyWell [14K]

To write a fraction as a decimal, you need to divide the numerator by the denominator. 1/6 would become 1 divided by 6. 1 / 6 = 0.16 (repeating bar over the 6). However, there are different ways to put a fraction in decimal form. 2 3/4 can become a decimal if the denominator is 100 (or any form of 10). 3/4 x 25/25 is 75/100. The decimal would be 2.75. 98 2/3 becomes 98.66 (since 1/3 is 0.3 (repeating bar over the 3). Now, 26 isn't a fraction or decimal... we are figuring out area. The formula for the area of a square is a = length times width. We can use the square root of 125 to solve this... which would be 11.18. Yet, we are rounding to the nearest mile which would be 11 miles.

8 0
4 years ago
Read 2 more answers
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