A student answered 38 problems on a test correctly and received a grade 95%. How many problems were on the test, if all the problems were worth the same number of points? (Round to the nearest whole number)

Answers

Answer 1

Answer:

36 questions

Step-by-step explanation:

the question can be rewritten to be:

what number out of 38 is equal to 95 percent

now you can use this ratio:

is/of = percent/100

x/38 = 95/100

cross-multiply to get:

100x = 38(95)

100x = 3610

x = 36.1


Related Questions

The volume of a gas in cubic centimeters, V, varies inversely with the
pressure of the gas in liters per square centimeter, p.
When the volume of the gas is 16 cm, its pressure is 20 L/cm2. Find the
volume of the gas when the pressure is 2.5 L/cm2
A. 322.5 cm
B. 800 cm3
C. 128 cm3
D. 0.008 cm

Answers

Answer:

C. 128 cm³

Step-by-step explanation:

16(20) = 320

320/2.5 = 128 cm³

Evaluate 4 + 2(x + 6)2 for x = -3. A. 18 B. 12 C. 22 D. 54​

Answers

B

dont trust me on this i solved it but i got a completely different answer which is not on the list. I got 6 as the answer.

Solve for x: 49.98+12x=61.98+7x

Answers

Answer:

X=2.436

Step-by-step explanation:

ANSWER!!! now please

Answers

Answer:

C) 85.0º

Step-by-step explanation:

a+2a+a+10=180

3a+10=180

3a=180-10

3a=170

a=42.5

a+10=52.5

2a=85

Answer:

B

Step-by-step explanation:

Simplify square root of negative 64

Answers

Answer:

8 i

Step-by-step explanation:

Answer:

8 i

Step-by-step explanation:

for sure not 8 because i got it wrong on the test

Please look at the picture for question.

Answers

Answer:

j = 6

Step-by-step explanation:

(5 + 3)6 = 48

     (8)6 = 48

       48 = 48

Help me with this answer please​

Answers

Answer:

There is 8 blue sweets and 4 red sweets.

Step-by-step explanation:

There is only blue and red sweets.

There is 12 sweets in total.

There is two times as many blue sweets as red sweets

There is 8 blue sweets and 4 red sweets.

Help me please
Using table determine equation for the table

Answers

Answer:

slope = 0.06

cost of plan = $45.44

Step-by-step explanation:

 cost of plan*

Which equations are true? Select all that apply.

A.
30
×
100
=
3
,
000
B.
30
×
10
3
=
30
,
000
C.
30
×
1
,
000
=
3
,
000
D.
30
×
10
4
=
3
,
000
,
000
E.
30
×
10
,
000
=
30
,
000

Answers

Answer:

a and c

Step-by-step explanation:

Answer: The answer is B C and E

Step-by-step explanation: Well, because the question says on B This 30×10³= 3,000 Since it has 3 zeros it is right. And C is this problem 30×1,000= 3,000 That is correct because it has 3 zeros [ which can be 10³ ]. And lastly E its the same thing. And I hope this helped!

Determine f –1(x) if f of x is equal to the quantity x plus 3 end quantity over the quantity x minus 4 end quantity where x ­ 4.
f inverse of x is equal to the quantity x minus 1 end quantity over the quantity 4 times x plus 3 end quantity
f inverse of x is equal to the quantity 4 times x plus 3 end quantity over the quantity x minus 1 end quantity
f inverse of x is equal to the quantity x minus 4 end quantity over the quantity x plus 3 end quantity
f inverse of x is equal to the quantity x minus 3 end quantity over the quantity x plus 4 end quantity

Answers

Answer:

Option B

Step-by-step explanation:

Given function:

f(x) = (x + 3)/(x - 4)

Find its inverse, take f(x) as y and swap x with y

x = (y + 3)/(y - 4)x = (y - 4 + 7) / (y - 4)x = 1 + 7/(y - 4)x - 1 = 7 / (y - 4)y - 4 = 7 / (x - 1)y = 4 + 7 / (x - 1)y = (4x - 4 + 7)/ (x - 1)y = (4x + 3) / (x - 1)

Replace y with f⁻¹(x):

f⁻¹(x) = (4x + 3) / (x - 1)

Correct choice is B

A x is equal to the quantity x plus 3 end quantity over the quantity x minus 4 end quantity where x ­ 4. at x = 0.5, the inverse function f²(-1)(x)  f²(-1)(x) = 0.5

To determine the inverse of the function f(x) = (x + 3) / (x - 4),  to follow these steps:

Replace f(x) with -1, since you're looking for the inverse at the point where f(x) = -1:

-1 = (x + 3) / (x - 4)

Solve for x in terms of -1:

Multiply both sides by (x - 4):

-1 ×(x - 4) = x + 3

Distribute the -1:

-x + 4 = x + 3

Solve for x:

Subtract x from both sides:

4 = 2x + 3

Subtract 3 from both sides:

1 = 2x

Divide by 2:

x = 0.5

To know more about function here

https://brainly.com/question/30721594

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PLS HELPPPPPP NOWEW!!!!

Answers

Answer:

nasaan ung question ha how

Draw the graph on the following lines.

Answers

Answer:

4. The y would be 9

5. The x-int would be 1.5

Step-by-step explanation:

Write the equation of the line that passes through the points (8,3) and (7,3). Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal line

Answers

Step-by-step explanation:

the equation :

(y-3)/(3-3) = (x-8) /(7-8)

(y-3) /0 = (x-8) /(-1)

(-1)(y-3) = 0(x-8)

-y +3 = 0

y = 3

(this is a horizontal line)

Answer:

y = 3 (Horizontal line)

Step-by-step explanation:

point: (8, 3) and (7, 3)

(y - y1)/(y2 - y1) = (x - x1)/(x2 - x1)

(y - 3)/(3 - 3) = (x - 8)/(7 - 8)

(y - 3)/0 = (x - 8)/(-1)

(-1)(y - 3) = 0

-y + 3 = 0

-y = - 3

y = 3 (Horizontal line)

ILL MARK BRAINLIEST HELP PLS

Answers

Answer:

Step 1, do math:

-13.6  >= 1.7x

-8 >= x

answer: C

The answer should be the first one!

1. (a) Show that 487 is prime. (b) Find the prime factorization of 2922. Show all working.

Answers

Answer:

Step-by-step explanation:

487 is a prime, because 487 is only divided by 1 or by itself

can someone pleaseeeee helppppp mee

Answers

yessssss I cannnnnnn helppppp youu

[tex] \frac{ - 12}{c} = 6 \\ [/tex]

Inverse both sides

[tex] - \frac{c}{12} = \frac{1}{6} \\ [/tex]

Multiply both sides by - 12

[tex]( - 12) \times - \frac{c}{12} = ( - 12) \times \frac{1}{6} \\ [/tex]

[tex]c = - 2[/tex]

There u go have a great day ❤

Answer:  C = -2

Step-by-step explanation:  Well if you times 2x3 that = 12.  So -2= c.

I am really sorry if this is wrong. I tried my best.  :-)

Hope you have a wonderful day !

Hello can someone help me please

Answers

9514 1404 393

Answer:

  C(3, -2)

  D(1, 7)

Step-by-step explanation:

It looks like your tool will do the rotation for you and give you the coordinates. The image(s) should look like the attached.

Find the area of the shaded region. Round your answer to the nearest hundredth.

12=side length

The area of the shaded region is about — square units.

How do you find the area of the shaded region? Thank you!

Answers

Answer:

Step-by-step explanation:

Divide 360 by the number of sides in a regular polygon to find θ

θ = 360/5 = 72°

Use law of cosines to find the radius of the circle which equals the common length sides of the isosceles triangle

12² = R² + R² - 2•R•Rcos72

12² = 2R² - 2R²cos72

12² =  2R²(1 - cos72)

R² = 12² / 2(1 - cos72)

R² = 104.1993788...

R = 10.2078...

The height of the isosceles triangle is

h = Rcos(θ/2) = 10.2078cos(72/2) = 8.258291...

The shaded area is the area of the circle minus the area of the pentagon.

A = π(104.1993) - 5(½(12)(8.258291))

A = 327.35200... - 247.74874...

A = 79.6032575...

A = 79.60 units²

The Area of the shaded region is A = 79.60 units²

What is law of Cosine?

A planar triangle's side's square is equal to the sum of the squares of the other sides minus the product of those sides and the cosine of the angle that separates them by two.

Given:

length= 12

So, Divide 360 by the number of sides in a regular polygon

θ = 360/5

θ = 72°

Use law of cosines

12² = R² + R² - 2 x R x Rcos72

12² = 2R² - 2R² cos72

12² =  2R²(1 - cos72)

R² = 12² / 2(1 - cos72)

R² = 104.1993788...

R = 10.2078...

Thus, the height of the isosceles triangle is

h = R cos(θ/2)

   = 10.2078cos(72/2)

   = 8.258291...

and, the shaded area is

A = π(104.1993) - 5(½)(12)(8.258291))

A = 327.35200 - 247.74874

A = 79.6032575

A = 79.60 units²

Learn more about Law of Cosine here:

https://brainly.com/question/17289163

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The question in the image! Please hurry :D

Answers

Answer:

8.85 * 10 ^17

Step-by-step explanation:

8.2 * 10 ^17 + 6.5 * 10 ^16

They must be to the same power to add

8.2 * 10 ^17 + .65 * 10 ^17

Add

8.85 * 10 ^17

This population chart represents linear or exponential growth?

•linear
•exponential

Answers

This is Linear graph.

Linear graph is represented in the form of a straight line. ... If the graph of any relation gives a single straight line then it is known as a linear graph. The word "linear" stands for a straight line. The linear graph is a straight line graph that is drawn on a plane connecting the points plotted on x and y coordinates.

- BRAINLIEST answerer

⅜, ¼, ⅞ order in rational numbers

Answers

Answer:

7/8>3/8>1/4

Step-by-step explanation:

because 7/8=0.875

3/8=0.375

1/4=0.25

if A:B=1/2:1/3, and B:C is 1/2:1/3, what is A:B:C?
(a) 2:3:3
(b) 1:2:6
(c) 3:2:6
(d) 9:2:4

Answers

Answer:

Step-by-step explanation:

C)3:2:6

Find the volume of the following square pyramid.

Answers

Check the picture below.

[tex]\textit{volume of a pyramid}\\ V = \cfrac{Bh}{3}~~ \begin{cases} B = \stackrel{\textit{area of its base}}{50\times 50}\\ h = \stackrel{\textit{its height}}{60} \end{cases}\qquad \implies V = \cfrac{50\cdot 50\cdot 60}{3}\implies \boxed{V= 50000}[/tex]

At a restaurant, the bill comes to $75. You decide to leave a 15% tip. What is the total amount you will owe for dinner and tip?

Answers

Answer:

75*.15=11.25 (tip amount)

75+11.25= $86.25 (total amount)

The value of Y varies jointly with x and z, and Y=60 when x=3 and z=5. find the equation that represents this relationship

Answers

Might be y = 4 x z

Hope it helps!

A wedding ring costs £13000. Work out the price after a 11% price increase

Answers

14430

13,000 x 1.11 (111%) = 14430

Answer:

Step-by-step explanation:

Increased price = 11% of   £ 13000

                          = 0.11 * 13000

                           = 1430

Price after increase = 13000 + 1430 =  £ 14,430

Find the value of the following expression:

(28 ⋅ 5−5 ⋅ 190)−2 ⋅ 5 to the power of negative 2 over 2 to the power of 3, whole to the power of 4 ⋅ 228 (5 points)

Write your answer in simplified form. Show all of your steps. (5 points)

Answers

Answer:

25

Step-by-step explanation:

Answer:

5^2 = 25

Step-by-step explanation:

Need help with this 3 questions

Answers

Answer:

  68. (-1, 0)

  69. (0, 2)

  70. (2, -1)

Step-by-step explanation:

The solution is the ordered pair (x, y) where the lines intersect. The graphs have no scale, so we must assume 1 grid space corresponds to 1 unit.

The first coordinate of the pair is the horizontal distance from the y-axis. Positive is to the right. The second coordinate of the pair is the vertical distance from the x-axis. Positive is up.

68. The point of intersection is 2 left of the origin on the x-axis. x=-2, y = 0.

  (x, y) = (-2, 0)

__

69. The point of intersection is 2 up from the origin on the y-axis: y = 2, x = 0.

  (x, y) = (0, 2)

__

70. The point of intersection is 2 right and 1 down from the origin: x = 2, y = -1.

  (x, y) = (2, -1)

_____

It is a good idea to learn to read the coordinates of a point from a graph. You will be doing it a lot in your math courses.

Choose the inequality that represents the following​

Answers

Answer:

Step-by-step explanation:

I think it is A

Answer:

D

Step-by-step explanation:

This is because the inequality has to show that x is greater than 1, and since the circle is filled, that means that it also has to equal 1. Therefore the symbol is > with the line below it.

Look at picture for question.

Answers

The equation would be 105=7l. She would’ve walked 15 laps, as 105/7= 15
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