A student answered 40 problems on a test correctly and received a grade of 80%. How many problems were on the test, if all the problems
were worth the same number of points?

Answers

Answer 1

Answer:

Step-by-step explanation:

80x/100 = 40

80x = 4000

x= 50 problems

Answer 2

Answer:

50 problems

Step-by-step explanation:

40÷2 =20 = 40% 20÷2 =10 = 20%

if 10 =20% then 10 × 5 = 50 or 80%

(overthinking)


Related Questions

Which expression is equivalent to 9u+5u?

Answers

14, I think its 14. let me know if I'm right

Draw the image of the following segment after a dilation centered at the origin with a scale factor of 2/3

Answers

Answer:

When we have a point (a, b) and we have a dilation of scale factor K centered at the origin, the new coordinates of this point will be:

(K*a, K*b)

In this case, we can find the original coordinates of the endpoints of the original segment.

Then apply the dilation to these points, and then draw a new segment whose endpoints are the dilated points.

The endpoints of the original segment are (i can not see the image very well, so i may be wrong when noticing the points).

The first endpoint is (6, 9) and (12, 12)

Now we apply a dilation with a scale factor K = 2/3.

then we get the points:

((2/3)*6, (2/3)*9) = (4, 6)

and the other point is:

((2/3)*12, (2/3)*12) = (8, 8)

Now we need to draw a segment whose endpoints are (4, 6) and (8, 8)

The segment can be seen in the graph below.

I need someone to solve the 2nd page of this pdf

Answers

Answer:

a b c d

Step-by-step explanation:

HELP ASAP!!! I WILL CHOOSE YOU THE BRAINLIEST!!!! PLEASE

Answers

Answer:

K is the independent value.

Step-by-step explanation:

For K, you can plug in any value, so it is independent, but T will always have to follow the value of K.

(The X axis is always independent, and the Y axis is always dependent.)

If you want me to do the "Complete the sentence", please tell me the options in the comments.

Answer:

t is the independantt variable and K is the dependant variable...

Smaller? Or less than...

I dont know..

Step-by-step explanation:

hope I helped.. can I have brainliest please? hee hee

Find the angle of elevation of the sun if a 24ft. Flagpole casts a shadow 7 ft. Round your answer to the nearest tenth of a degree

Answers

6 is the answer to itt

plz help asap!!
which statement is not true about the data shown by the box plot below ?

Answers

Answer:

B

Step-by-step explanation:

the range is about 45

B is correct

Reason: range is the biggest number the line where it stops
And the smallest number which is where the line begins. Smallest is 11 and largest is 81 then you minus 81-11 is 70. 70 is the range so B is correct

Cookie Creations sells 8-inch cookies for $3 each plus a flat $5 delivery fee. Zach has $14 to spend on cookies.
Write and solve an equation to determine how many cookies, x, Zach can buy and have delivered.
in the boxes.

Answers

Answer:

($14-$5)=x($3)

x=3 cookies

Step-by-step explanation:

($14-$5)=x($3)

9=3x

9/3=3x/3

x=3 cookies

Given f(x) = -4x and g(x) = -5x - 8, find g(f(6-2m²))​

Answers

9514 1404 393

Answer:

  -40m² +112

Step-by-step explanation:

g(f(6-2m²)) = g(-4(6 -2m²)) = g(8m² -24)

= -5(8m² -24) -8 = -40m² +120 -8

g(f(6-2m²)) = -40m² +112

I need help I can’t understand having the answer is going to help a lot

Answers

Answer:

Step-by-step explanation:

35[tex]\frac{1}{2}[/tex]÷1[tex]\frac{1}{4}[/tex]=28.4

Can someone please give me the answers

Answers

Answer:

1) 3

2)9

3)18

4)18k

5)18 and k

6)k/3

7)k

8)3

9)9 + k/3

10) 18k - 9

Write the equation of the line in slope-intercept form given:

m = 3/7 through (-7, 7)

Answers

Answer:

y=3/7x+10

Step-by-step explanation:

y-y1=m(x-x1)

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

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

y=3/7x+21/7+7

y=3/7x+3+7

y=3/7x+10

What is y -0.12y ???

Answers

Answer:

ill look for you

Step-by-step explanation:

Answer:

Step-by-step explanation:

y-0.12y = 0.88y

There are a total of 64 students in the anime club and student council. Student council has 10 more students than anime club how many are in each

Answers

Answer:

27 in the anime club and 37 in student council

Step-by-step explanation:

there are 64 students

if you divide 64/2 there are 32 in both

32+32=64

then if you give 5 from one to the other

27+37=64

Answer:

student councel has 37 anime club has 27

Step-by-step explanation:

if two sides of a triangle measurement 8cm 12cm what is the range of the third side

Answers

Umm I think maybe 4cm or 16cm

My yard is 2730 square feet. It’s base is 65 feet. What is the height.

Answers

Answer: Your height is 42

Step-by-step explanation: 2730 divided by 65 would by 42

Answer:

area of rectangle is product of base×height.or length×breadth

area of rectangle= base ×height

2730 feet²=65×height

2730/65=height

42feet=height.

Which of the ratios below has a unit rate of 30? Select all that apply. A) 50:20 B) 4:140 C) 180:6 D) 240:8 E) 900:30

Answers

Answer:

c,d,e

Step-by-step explanation:

URGENT: Create a linear system whose ONLY SOLUTION is (3,13) . I just need the equations for f(x)=? , G(x)=? To get (3,13). ASAP!!!!! PLZZZ

Answers

The solution of (3,13) means you need to create two lines that satisfy x = 3 and y = 13

The two lines can be anything as long as they give this solution

For example, if you wrote x + y = 16 (you know their values already)

Then write another y - x = 10

From here you have your equations, turn them into the f(x) form.

x + y = 16 can be turned into y = 16 - x which is f(x)=16-x

y-x = 10 can be turned into y = 10 + x which is g(x)=10 + x

does anyone know the answer??

Answers

Answer:

100.00

Step-by-step explanation:

x=number of months until the costs are the same

50 + 20x = 25 + 30x

25 = 10x

x = 2.5 months

50 + 2.5(20) =$100.00

Learning task 1

week 7

Answers

Answer:

A to D is a diameter

M is a center

F to M is a radius

E is a tangent lines

H to A is a chord

C to E is an arc

what is the measurement of angle x

the angle on the right measures 54 degrees and the left measures 38 degrees

Answers

Answer:

16

Step-by-step explanation:

180 is a straight line.

x is among that line so you must subtract the angles you know from 180.

180-54-38= 16

Use 50° as the reference angle to find the value Opposite: 50° Adjacent: Hypotenuse 7 12 90° 40° 9 Tt o​

Answers

50* also goodluck :)))

Nina uploaded a funny video on her website, which rapidly gains views over time.
The relationship between the elapsed time, ttt, in days, since Nina uploaded the video, and the total number of views, V(t)V(t)V, left parenthesis, t, right parenthesis, is modeled by the following function:
V(t)=500⋅(1.8)t
Complete the following sentence about the daily percent change in the views of the video.

Answers

Answer: 80% views are added

Step-by-step explanation:

The required  daily percent change in the views of the video is 50%.

Nina uploaded a funny video on her website, the relationship between the elapsed time t, and number of views. V(t) is V(t)=500⋅(1.8)t.

What is rate of change?

Rate of change is defined as the change in value with rest to the time is called rate of change.

Here,
V(t)=500⋅(1.8)t
The slope of the given relationship will describe the the daily percent change in the views of the video i.e.
m = 500*1.8
m = 900
since the rate of increase in views in each day is by 900.


Now the percentage change per day.
= 900/1800 x 100
= 50 %

Thus, the required  daily percent change in the views of the video is 50%.

Learn more about rate of change here: https://brainly.com/question/13103052

#SPJ2

3n^5 divided by 6n^3 simplified,
thank

Answers

Answer:

[tex] \frac{ {n}^{2} }{2} [/tex]

Step-by-step explanation:

[tex] \frac{3 {n}^{5} }{6 {n}^{3} } = \frac{3}{6} \times \frac{ {n}^{5} }{ {n}^{3} } = \frac{1}{2} \times {n}^{5 - 3} = \frac{1}{2} \times {n}^{2} = \frac{ {n}^{2} }{2}[/tex]

45.72+3.8
what is the answer

Answers

Your answer is 46.52

Solve for x.

x =

thank you in advance!

Answers

Answer:

3x+9=180(angles on a line

3x=180-9

3x=171

x=171/3

x=57

The answer is 3(x+9)

*
Which graph represents the function f(x) =
c) = (3)
ty
3
ty
3
ty
3
ty
3
3
2
2.
2
2
1
1.21
2 3 4
2 3 4
2 3 4
2 3 4
O
o

Answers

The equation of the graph of [tex]f(x) = (\frac{3}{2})^{-x}[/tex] is graph (b)

The equation of the graph is represented as:

[tex]f(x) = (\frac{3}{2})^{-x}[/tex]

See attachment for the graph of [tex]f(x) = (\frac{3}{2})^{-x}[/tex]

From the attached graph, the curve passes through points (0,1) and (2,0.5).

Hence, the equation of the graph of [tex]f(x) = (\frac{3}{2})^{-x}[/tex] is graph (b)

Read more about graphs and functions at:

https://brainly.com/question/3939432

Find the value of x and the measure of the angle labeled 3x.
A. x= 14; angle measure is 30°
B. x = 10; angle measure is 42".
C. x = 14; angle measure is 42"
D. x = 10; angle measure is 30°

Answers

Answer:

X=10

Step-by-step explanation:

3x=30

3(10)=30

30=30

30+42=72

I hope this helps!

Answer:

D. x=10; angle measure is 30°

Step-by-step explanation:

hope this helps

Last month Tara worked 16.5 hours the first week, 19 hours the second week, 23 hours the third week and 15.75 hours the fourth week. She plans to work more hours this month then last month

Answers

Answer:

74.25

Step-by-step explanation:


What’s the answer to this question?

x² =

12
16
48

Answers

I said it’s probably 16 !!

Common denominator of 1/6

Answers

Answer:

24 the answer is 24

Step-by-step explanation:

that's because the (LCD) of 1/6 is 24

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