3 years ago

A placeholder for an unknown number.

Mathematics

1 answer:

tatuchka [14]3 years ago

8 0

What is the question? Pls explain

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2y + x = 6

Nimfa-mama [501]

B) The system of equations has a solution

4 0

3 years ago

Denise guessed that the elephant at the zoo weighed 10,000 pounds. It actually weighed 12,400 pounds. Yesia guessed that the hip

NeX [460]

Answer: weight of elephant has smaller percent error.

Step-by-step explanation:

Percent error = $\dfrac{|\text{estimated value -actual value}|}{\text{actual value}}]\times100$

Estimated weight of elephant = 10,000 pounds

Actual weight of elephant = 12,400 pounds

Percent error of weight = $\dfrac{|12400-10000|}{12400}\times100\%\approx19.35\%$

Estimated weight of hippopotamus = 2,500 pounds

Actual weight of hippopotamus = 3,600 pounds

Percent error of weight = $\dfrac{|2500-3600|}{3600}\times100\%\approx30.55\%$

Since 19.35 < 30.55

hence, weight of elephant has smaller percent error.

3 0

3 years ago

two times a number is subtracted from 25 the result is the same as when it is added to six times.find the number

ExtremeBDS [4]

Answer:

6.3

Step-by-step explanation:

1. 25 - 2n = n + 6

2. 25 = 3n + 6

3. 3n = 19

4. n = 6.3

8 0

3 years ago

-4 minus 2 1/2 what is the total

zepelin [54]

Answer:

- 6 1/2

Step-by-step explanation:

-4 - 2 /12

Since the signs are alike, we add and take the signs of the larger

-( 4+2 1/2)

- (6 1/2)

8 0

3 years ago

Write the polynomial in standard form. Then identify the polynomial by the number of terms. -3b^2+7b^3

mario62 [17]

7b^3 - 3b^2....u have a 2 term polynomial, otherwise known as a binomial

6 0

3 years ago