MATHEMATICS HIGH SCHOOL

What is the answer for
80=30t

Answers

Answer 1
Answer:

Answer:

t = 8/3

Step-by-step explanation:

80 = 30t

t = 80/30

t = 8/3
Answer 2
Answer:

Answer: t = 8/3

Step-by-step explanation:

divide 30 on both sides: t=80/30

t = 8/3

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Which term describes a fraction that has a variable or variable expression in its numerator, its denominator, or both?A. Variable fraction
B. Rational expression
C. Rational fraction
D. Variable expression

Answers

The right answers is B. Rational expression.

This is true given that the statement establishes a term that describes a fraction that has a variable or variable expressionin its numerator, denominator or both, that is, this is the concept of the quotient of two polynomials called rational expression. Finally, we can get the following rational expressions that matches with this concept, namely:

(1) \ (1)/(x) \n \n (2) \ (2x-1)/(x+1) \n \n (3) \ (x^(2)-1)/(x^(2)+1)
Rational expression

What is the product?2a-7 over a times 3a^2 over 2a^2-11a+14
a) 3 over a -2
b) 3a over a-2
c) 3a over a+2
d) 3 over a+2

Answers

Answer:

The correct option is b.

Step-by-step explanation:

We have to find the product of (2a-7)/(a)  and  (3a^2)/(2a^2-11a+14).

Multiply both terms.

(2a-7)/(a)* (3a^2)/(2a^2-11a+14)

Cancel out the common factor a from numerator and denominator.

(2a-7)/(1)* (3a)/(2a^2-7a-4a+14)

(2a-7)/(1)* (3a)/(a(2a-7)-2(2a-7))

(2a-7)/(1)* (3a)/((2a-7)(a-2))

Cancel out the common factor (2a-7) from numerator and denominator.

(1)/(1)* (3a)/(a-2)

(3a)/(a-2)

Therefore, the correct option is b.
this question involves factoring and multiplying equations so just follow along my procedures in the image

Ach Sunday, Mario weighs himself. Here are his weight changes over a 4-week period. Week 1 2 3 4 Weight Change –1.8 +0.9 –1.4 +0.4 How much has Mario's weight changed over the entire 4 weeks?a. 4.5 pounds
b. –1.9 pounds
c. –4.5 pounds
d. 1.9 pounds

Answers

B. All you do is -1.8 + 0.9 - 1.4 + 0.4, and you get -1.9   And if  you want to see for your self just open a new tab on google and type in the numbers like the format i put it in and google calculator will give you the answer!

What answer describes this sequence? 99, 89.9, 78.8, 68.7,...

a) Neither arithmetic nor geometric
b) Both arithmetic and geometric
c) Arithmetic
d) Geometric

Answers

a) Neither arithmetic nor geometric
a) Neither arithmetic nor Geometric

Explanation:
Since 99-89.9= 9.1, and 89.9 - 78.8 = 11.1, the sequence is not arithmetic.
Like wise 89.9/99=0.908 and  78.8/89.9 = 0.876 makes it not a geomtric sequence

The number of boxes of food that six volunteers collected for the food drive is given in the table below.Number of Boxes
32
35
20
16
28
13


What is the mean absolute deviation? Round to the nearest tenth.

Answers

Answer:

The mean absolute value is 7.7, when rounded to the nearest tenth.

Step-by-step explanation:

1.) To get the mean absolute deviation you have to find the mean first:

  • 32 + 35 + 20 + 16 + 28 + 13 = 144 ÷ 6 = 24

2.) Then, you have to find the difference of each element in your data set that is away from the mean. Then, you have to find the absolute values of the answers:

  • 32 - 24 = | 8 | → 8
  • 35 - 24 = | 11 | → 11
  • 20 - 24 = | -4 | → 4
  • 16 - 24 = | -8 | → 8
  • 28 - 24 = | 4 | → 4
  • 13 - 24 = | -11 | → 11

3.) Then, you have to find the mean of the absolute values:

  • 8 + 11 + 4 + 8 + 4 + 11 = 46 ÷ 6 = 7.6666666666666666666666666666667‬ = 7.7

Answer:

its 7.7

Step-by-step explanation:

i got it right in edg

Solve: 4x+3 = 2x + 9

Answers

4x+3 = 2x + 9

4x-2x=9-3

2x=6

x=6/2

x=3
Move 2x to the left hand side of the equation by subtracting 2x from both sides.
4x+3−2x=9

Add 4x and −2x to get 2x.
x+3=9

Since 3 does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting 3 from both sides.
2x=−3+9

Add −3 and 9 to get 6.
2x=6

Divide each term in the equation by 2.
x=3

x is equal to 3
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