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
alekssr [168]
3 years ago
7

Gianna is taking a multiple choice test with a total of 100 points available. Each question is worth exactly 5 points. What woul

d be Gianna's test score (out of 100) if she got 3 questions wrong? What would be her score if she got xx questions wrong?
Mathematics
2 answers:
tatiyna3 years ago
8 0

Answer:

Her test score would be an 85 because 5x3=15 and then you would subtract 15 from 100 which would be 85

equation would be x=100-(5y)

malfutka [58]3 years ago
6 0

Answer:

85

Step-by-step explanation:

Let x equal the number of questions.

Let's find how many total questions there are:

100=5x

Divide by the coefficient of x, which in this case is 5.

20=x

So we have a total of 20 questions, each are worth 5 points.

Now, Gianna got 3 questions wrong, and if we know there are 20 total questions...

20-3

Solve.

20-3=17

So we know Gianna got 17 questions correct.

Let's use an expression to figure out her score.

Again, let x equal the number of questions.

5x

Substitute.

5(17)

Multiply.

85

You might be interested in
The different of anumber and 12
Llana [10]
Five divided by the difference of a number and 12 equals the quotiene of 10 and the sum of the number and five
3 0
3 years ago
Starlight tree farms sells douglas firs and noble first one December they sold 139 more douglas first than noble firs the total
Aloiza [94]
Part A:

Given that <span>Starlight tree farms sells Douglas Firs and Noble First.

Let </span>n be the number of Noble Fir trees sold, then<span> if they sold 139 more Douglas First than Noble Firs, this means that the number of Douglas First trees sold is n + 139.

Given that the total number of trees sold was 377, then we have, n + n + 139 = 377, which means that 2n + 139 = 377

Therefore, the equation that could be used to solve for n, the number of Noble Fir trees sold is 2n + 139 = 377.


Part B:

</span><span>Given that you are driving 55 miles per hour and you must drive a total of 440 miles. If you already driven 275 miles, then, the equation representing the number of hours, h, it will take to reach your destination is given by 55h + 275 = 440.

Subtracting 275 from both sides of the equation gives:

</span>55h+275-275=440-275 \\  \\ \Rightarrow55h=165
<span>
Dividing both sides by 55 gives:

</span>\frac{55h}{55} = \frac{165}{55}  \\  \\ \Rightarrow h=3
<span>
Therefore, the time it will take you to reach your destination is 3 hours.</span>
6 0
3 years ago
— 7x — бу = — 15 Determine the intercepts of the line.
____ [38]

Answer:

see below

Step-by-step explanation:

— 7x — бу = — 15

To find the x intercept set y = 0 and solve for x

-7x - 0 = -15

-7x= -15

Divide by -7

-7x/-7 = -15/-7

x = 15/7

The x intercept is (15/7,0)

To find the y intercept set x = 0 and solve for y

o— бу = — 15

— бу= -15

Divide by -6

— бу/-6= -15/-6

у= 5/2

The y intercept is (0,5/2)

8 0
3 years ago
one possible combination is red and hearts. write down all the other possible combinationas. write your answer like this (R,H) y
NeX [460]

Answer:

hmmmm.... sorry but i really dont know this  yet

Step-by-step explanation:

4 0
2 years ago
What is the quotient of 3.12 x 108 and 2.6 x 105 expressed in scientific notation?​
Gnoma [55]

Answer:

1.2 * 10^3

Step-by-step explanation:

3.12 * 10^8

=========

2.6 * 10^5

Start by doing 3.12 / 1.6 = 1.2 and that is the correct number of sig digs.

Now get the power on the 10. When dividing, the powers subtract.

10^(8 - 5)

10^ 3

The answer is 1.2 * 10^3

7 0
3 years ago
Other questions:
  • Pleeeeaaassssee heeeeellllllpppp faaasst brainliest if 2 PPL ANSWER!!!
    7·2 answers
  • 5km + 3400m +15000cm=
    5·2 answers
  • First answer I will give you brainleyist
    14·1 answer
  • Identify whether the function f(x)=3x5 is a monomial function, power function, both, or neither.
    14·1 answer
  • The length of a rectangle is l and the width of the rectangle is w.
    9·2 answers
  • Mark's soup recipe makes 6 servings and uses 4 carrots and 2 potatoes. How many carrots and how many potatoes?
    5·1 answer
  • A family of three children and two adults visited a health club. The club charges $y an hour for each child and $x an hour for e
    11·1 answer
  • I need someone to check my answer to see if it's correct.
    8·1 answer
  • In △ABC, AB=9.2 ft, BC=11.9 ft, and m∠B=27°.
    12·1 answer
  • A tennis ball has a diameter of 2.7 inches. What is the approximate volume of the tennis ball
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!