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marishachu [46]
3 years ago
7

Tim has completed five math problems and 13 minutes if he continues at the same rate how long will it take him to finish 20 prob

lems
Mathematics
1 answer:
Likurg_2 [28]3 years ago
5 0

Answer:

52 minutes

Step-by-step explanation:

it takes him 13 minutes to complete 5 so if he wants  to do 20 problems  do 20 divided by 5 (4) then do 13 times 4=52

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Find f(3) for f(x)=−5x−2<br><br> A. -10<br><br> B. -15<br><br><br> C. 13<br><br><br> D. -17
Travka [436]

Answer:

f(3) = -17

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = -5x - 2

f(3) is x = 3

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                    f(3) = -5(3) - 2
  2. Multiply:                               f(3) = -15 - 2
  3. Subtract:                              f(3) = -17
4 0
3 years ago
x = 16 and y = 2, given that x is directly related to the square of y. If x = 100, what is the value of y?
zhannawk [14.2K]

Answer:

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Four less than the product of 8 and a number equals 6
docker41 [41]

The equation will be 6x - 4= 8.

Solve the equation: 6x - 4 = 8 + 4 + 4.

6x = 12. 6 6. x = 2

Hopefully, that helps

8 0
3 years ago
What is the vector sum of (7,5) and (13,-5)
kolezko [41]

The vector sum of  two vectors as (7,5) and (13,-5) is given by v_1+v_2=20i+0j which can be written in point form as  (20,0) .

<u>Step-by-step explanation:</u>

Here we have , two vectors as (7,5) and (13,-5) Which are represented as :

v_1=7i+5j\\v_2=13i-5j

Addition of vector is as same as normal addition of integers as :

⇒ v_1+v_2=7i+5j+(13i-5j)

⇒ v_1+v_2=(7+13)i+(5-5)j

⇒ v_1+v_2=20i+0j ,

where i & j are the unit vectors in direction x-axis and y-axis respectively.

The vector sum of  two vectors as (7,5) and (13,-5) is given by v_1+v_2=20i+0j which can be written in point form as  (20,0) .

3 0
4 years ago
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It costs $35 per hour to rent a boat at the lake. You also need to pay a $25 fee for safety equipment. You have $200. For how lo
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200-25= 175

175/35= 5 hours 
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3 years ago
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