1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
gladu [14]
3 years ago
9

Mark is a professional race car driver. He has competed in 15 races and won 40% of them. How many races has Mark won?

Mathematics
2 answers:
Romashka [77]3 years ago
8 0

Answer:

6 is the answer

Step-by-step explanation:

Feliz [49]3 years ago
8 0

Answer:

6 races

Step-by-step explanation:

15 × 0.4 = 6

0.4 = 40%

15 total races

6 total won

9 lost

You might be interested in
What is the surface area of a coke bottle? <br>how do you figure it out?
svetlana [45]
Can or bottle? A can will be the calculation for the surface area of a cylinder which is A= 2 \pi rh+2 \pi  r^{2} if r is the radius of the circle on the top and bottom of the can and h is the height of the can. A can is basically two circles and a big rectangle. For a bottle I don't know there are too many components and no numbers to solve for that
6 0
3 years ago
Please help! Need ASAP
pantera1 [17]

Answer:

nobody gonna answer this for 5 points. you have to put 1 question for each 5 points

8 0
4 years ago
Marcus wants to use a model to determine the difference
grigory [225]

Electron transfer theory describes the parameters which control the rate at which an electron is transferred from one atom or molecule to another.

<h3>What was the basic principle of Marcus theory?</h3>
  • In theoretical chemistry, Marcus theory is a theory originally developed by Rudolph A. Marcus, starting in 1956, to explain the rates of electron transfer reactions – the rate at which an electron can move or jump from one chemical species.
  • Marcus' method (also referred to as Marcus's method and Method of Marcus) is a structural analysis method which was designed to design concrete slabs with rectangular, orthogonal shapes. It represents an adaptation of the strip method.
  • Marcus Hush theory (M-H theory) was developed in 1956 by Rudolph A. Marcus which explains the fundamentals of the redox/ electron transfer reactions in terms of the rate of jumping/moving an electron from oxidant species (electron donor) to the reductant (electron acceptor).
  • The "Marcus Inverted Region" (MIR) is that part of the function of rate constant versus free energy where a chemical reaction becomes slower as it becomes more exothermic.

We want to see how we can model the difference: -8 - 3 + 3

The correct option is D:

"add 3 positive counters and 3 negative counters"

We know that Marcus starts with 8 negative counters, corresponding to the first term in our difference.

Now, let's study the math of our expression.

-8 - 3 + 3

Remember that we can perform the operation in any order we want, so we can write this as:

-8 + (-3 + 3)

Notice that the thing inside the parentheses is equal to zero, so we have:

- 8 + (-3 + 3) = -8

So to not change the value, we add 3 and we subtract 3.

Now if we have 8 negative counters, and we want to add 3 positive counters and not change the value, then we also need to add 3 negative counters to "cancel" the 3 positive counters we added.

Then the correct option is D.

To learn more about Marcus refer to,

brainly.com/question/23140234

#SPJ1

8 0
1 year ago
Line L has equation y = 4x - 7, and line M is parallel to line L and passes through the point (2, 15). Determine the equation of
Artist 52 [7]

Answer:

A: y = 4x + 7

Step-by-step explanation:

Step 1:  Our line is parallel to this line, so it has the same slope, but a different  y-intercept, so set up the equation...

  y = 4x + b      

We are given a  point (x, y) of (2, 15), so plug that in and solve for b.  

 15 = 4(2) + b

    15 = 8 + b      (simplify)

        7 = b      (subtract 8 from both sides to isolate b)

So the equation of our line is  y = 4x + 7

3 0
3 years ago
John has a total of 13 coins in his pocket. Of the 13 coins, they are all either quarters or dimes. The total value of the coins
lubasha [3.4K]
8 quarters = (8 x .25) = $2.00

5 dimes = (5 x .10) = $.50

$2.00 + $.50 = $2.50

8 + 5 = 13
3 0
3 years ago
Other questions:
  • The volume of the cylinder is 392 cm cubed work out the length
    11·1 answer
  • Which problem could be solved by evaluating the expression 7×(-3)
    14·2 answers
  • Your company has just taken out a 1-year installment loan for $72,500 at a nominal rate of 20.0% but with equal end-of-month pay
    14·1 answer
  • Use algebra to solve 3x + 4 = 1/x . The exact solutions are x =
    14·1 answer
  • Polygon ABCDE is the first in a pattern for a high school art project. The polygon is transformed so that the image of A' is at
    6·2 answers
  • 7/21 equivalent fractions<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B7%7D%7B%3F21%7D%20" id="TexFormula1" title=" \frac{7
    10·1 answer
  • As part of a promotion for a new type of cracker, free trial samples are offered to shoppers in a local supermarket. The probabi
    13·1 answer
  • 3x - 9(x-2) = 18x + 30
    13·2 answers
  • X^2 + 32x + 256 = 1<br>please show steps​
    15·1 answer
  • ∣x−2∣=∣4+x∣solve for x
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!