A teacher gave a test with 50 questions, each worth the same number of points. Donovan got 39 out of 50 questions right. Marci's score was 10 percentage points higher than Donovan's. How many more questions did Marci answer correctly?

Answers

Answer 1

Answer:

49 all you have to do is add 10 to 39


Related Questions

A person bought 32 seeds for $16. How many can another person buy if they have $4?

Answers

Answer:

8 seeds

Step-by-step explanation:

16 = 32

4 = ?

16 ÷4 = 4

32 ÷ 4 = 8

Find the length of the indicated side in each triangle, to nearest unit.

Answers

Answer:

A= 56

E= 59

Step-by-step explanation:

All triangle are 180 degrees so

A.

71 + 53 = 124

180- 124 = 56

B.

70 + 51 = 121

180 - 121 = 59

Hope this helps

need this answered quick, please provide explanation for answer thanks :p

Answers

about 45 weeks. subtract 20.2 from 121.5 and then divide by 2.25

1/2x-1/4y=10
1/8x-1/8y=19
which ordered pair (x,y) satisfies the system of equations above
a) (-122,264)
b) (64,88)
c) (232/3, 224/3)
d) (288,536)

Answers

Answer: (-112,-264)

Step-by-step explanation:

john bought a full basket of mangoes when he got home he realised 12 out of the 20 mangoes he bought are bad what is the probability of the good ones​

Answers

12/20 mangoes are bad so 8/20 mangoes are good and to convert to a percentage we make the denominator 100.
To make 20 to 100 we times by 5 so we do the same to the numerator which is 8
So 8x5 = 40%
Give me brainliest answer plz
And hope it helps!

Evaluate the function

Answers

(3*2)^2-(2*2)+5
36-4+5
=37

A bee colony produced 5.9 pounds of honey, but bears ate 1.5 pounds of it. How much honey remains?

Answers

Answer:

4.4

Step-by-step explanation:

hope this helps

Answer:

5.9 - 1.5

3.5 pounds of honey

Use the distributive property to write an expression that is equivalent to 8(7+ X).

56+ 8x
8+ 7x
56+ x
7 + X= 1/8


Answers

Answer:

56 + 8x

Step-by-step explanation:

8(7) + 8(x)

= 56 + 8x

A shape is shown on the graph: A coordinate grid is shown from positive 8 to negative 8 on the x-axis and from positive 8 to negative 8 on the y-axis. A triangle is shown on ordered pair 2, negative 2 and 4, negative 2 and 2, negative 6. Which of the following is a reflection of the shape? (5 points) Group of answer choices A coordinate grid is shown from positive 8 to negative 8 on the x-axis and from positive 8 to negative 8 on the y-axis. A triangle is shown on ordered pair negative 2, negative 2 and negative 4, negative 2 and negative 4, negative 6. A coordinate grid is shown from positive 8 to negative 8 on the x-axis and from positive 8 to negative 8 on the y-axis. A triangle is shown on ordered pair 2, 2 and 4, 2 and 2, 6. A coordinate grid is shown from positive 8 to negative 8 on the axis and from positive 8 to negative 8 on the y-axis. A triangle is shown on ordered pair negative 2, negative 4 and negative 6, negative 4 and negative 6, negative 2. A coordinate grid is shown from positive 8 to negative 8 on the axis and from positive 8 to negative 8 on the y-axis. A triangle is shown on ordered pair 2, 2 and 2, 4 and 6, 2.

Answers

Answer:

Step-by-step explanation:

the answers the second one.

Answer:

D

Step-by-step explanation:

the answer is d

-14=-20y-7x
10y+4=2x

Solve by Elimination please!

Answers

Answer:

x = 2    y = 0

Step-by-step explanation:

3/6 = n/2

proportional relationships

Answers

Answer:

1.

Step-by-step explanation:

Do cross multiplying, 3 x 2 = 6

6 divided by 6 = 1

n = 1

Answer:

n = 1

Step-by-step explanation:

3/6  = n/2 Find the greatest common factor of the numerator and denominator

1:3/2:3 = n/2 Factor out and cancel the greatest common factor

1/2 = n/2 Swap sides

n/2 = 1/2

Line f passes through points (8, 7) and (3, 10). Line g passes through points (5, 7) and (10, 4). Are line f and line g parallel or perpendicular?

Answers

Answer: Parallel

Step-by-step explanation:

First find slope.

Line f: [tex]\frac{10-7}{3-8} =-3/5[/tex]

Line g: [tex]\frac{4-7}{10-5}=-3/5[/tex]

Since the slopes are the same, the lines are parallel.

First we need to find the slope of each line

Slope of line f

(8 , 7)  (3 , 10)

[tex]slope = \frac{y_{2}-y_{1} }{x_{2}-x_{1}}[/tex]

[tex]slope = \frac{10-7}{3-8}[/tex]

[tex]slope = \frac{3}{-5}[/tex]

[tex]slope=-\frac{3}{5}[/tex]

Slope of line g

(5 , 7)  (10 , 4)

[tex]slope = \frac{y_{2}-y_{1} }{x_{2}-x_{1}}[/tex]

[tex]slope = \frac{4-7}{10-5}[/tex]

[tex]slope = \frac{-3}{5}[/tex]

[tex]slope=-\frac{3}{5}[/tex]

The two lines have the same slope therefore they are not perpendicular but instead parallel to each other.

i need help plz if any one is willing to help me

Answers

The answer is y = 1/2x+4.

For this all you have to do is add the three on both sides to get it into the form that you are being asked.

Answer:

y=1/2x + 4?

Step-by-step explanation:

I am not really sure. Im sorry if im wrong:(

is y= 4x(8 -x) a linear or a nonlinear function?

Answers

Answer:

nonlinear

Step-by-step explanation:

You would do distributive property it’s non linear because there is a squared value while linear functions don’t ever have squared values

Graph the equation.
y = |x – 11 – 2

Answers

Answer:Correct option is

A

10

Given y=(x−11)  

2

 

⇒y=x  

2

−22x+121

After substitute y=25. we get,

x  

2

−22x+121−25=0

⇒x  

2

−22x+96=0

⇒(x−16)(x−6)=0

⇒x=16,x=6

∴ two points are  A,B are (16,25),(6,25).

Distance between A and B is  

(16−6)  

2

−(25−25)  

2

 

=10

Hence, option A is correct.

Jacob needs 48 ounces of tomatoes for the spaghetti sauce. He is choosing between the two brands shown. Explain how Jacob can determine which is the better value.

Answers

Answer:

Jacob could compare the unit rates of cost per ounce. The unit rate that is less per ounce is the better deal. Not He can look at the cost per ounces!

Step-by-step explanation:

Answer:

Compare the unit rates.

The unit rate shows the cost for each ounce.

The lesser unit rate costs less per ounce.

The brand with the lesser unit rate is the better value.

Step-by-step explanation:

PLEASE HURRY
One number is two less than a second number. Five times the first is 8 more than 2 times the second. Find the numbers
what is the value of the first and second number?

Answers

Answer:

PLEASE MARK BRAINLIEST

Step-by-step explanation:

a+2= b

5a - 8 =2b

a= b- 2

since(a= b- 2)

5(b-2) -8 = 2b

5b -10 - 8 = 2b

3b -18 =0

3b=18;b=6

since b =6

a= 6-2 ; a= 4

five times the sum of x and y decreased by 2x
write this as an algebraic expression

Answers

[tex]x + y \times 5 - 2x[/tex]This algebraic expression can be formed with the given data.

Answer:

5(x+y) - 2x

this is the algebraic expression

(-10,7) and (4,6)
Find the midpoint of the segment with the given endpoints.

Answers

Answer:

(-3,6.5)

Step-by-step explanation:

it has no picture just these

Answers

Answer:

angle OPN, angle PON, angle NOP, angle PNO

Step-by-step explanation:

Essentially, this simply asks what angles contain the line OP. If we draw the triagnle NOP (in that order starting at the top), we can see that all these angles include the line OP within their angles.

(note: Im not sure if it is asking for the line OP in that order. If so, it would only be angles 1 and 3, as those have OP in that order)

Science:
What is the kinetic energy of a 20 kg bowling ball moving in horizontal direction at 5.2 m/s towards the pin?​

Answers

[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]

Given terms are :

m = mass = 20 kg

v = velocity= 5.2 m/s

let's solve for kinetic energy :

[tex] \dfrac{1}{2} m {v}^{2} [/tex]

[tex] \dfrac{1}{2} \times 20 \times 5.2 \times 5.2[/tex]

[tex]10 \times 5.2 \times 5.2[/tex]

[tex]270.4 \: \: joules[/tex]

Find the surface area of this triangular prism. Be sure to include the correct unit in your answer.

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The Surface area of the triangular prism is :

[tex] {(13 \times 6) + (5 \times 6) + (12 \times 6) + 2 \times \bigg( \dfrac{1}{2} \times 12 \times 5 \bigg)}[/tex]

[tex]78 + 30 + 72 + 2 (30)[/tex]

[tex]180 + 60[/tex]

[tex]240 \: \: {in}^{2} [/tex]

What’s the perimeter of 4 1/2in and 8 1/2in

Answers

Answer:

26 in

Step-by-step explanation:

4.5 x 2 = 9

8.5 x 2 = 17

9 + 17 = 26

I'm stuck in math class and I have no clue how to do it- lol :')

Answers

Answer:

c = 9

Step-by-step explanation:

first, simplify 30/2c. which is 15/2c. then cross multiply. 15 x 12 = c x 20.

you get 180 = c x 20. swap sides, c x 20 = 180. divide both sides by 20, then simplify to get 9.

hope this helps.

PLEASE SOMEONE WHO IS SMART ANSWER THIS QUESTION

Answers

Answer:

36/32 or 1 1/8 (same thing)

Step-by-step explanation:

9 gallon / 32 quarts

First, you have to convert 9 gallon to quarts to match the denominator. In the table, it says that 1 gallon = 4 quarts, so you have to do, 9 x 4 which gives you 36. Now that the fraction is in the same form of units, 36 quarts / 32 quarts, you will have to write it as a mix fraction or you can just leave it as 36 quarts / 32 quarts. If you want it in mix fraction, it is 1 1/8.

Answer:

36

Step-by-step explanation:

1 gallon is 4 quart then the question is 1 to 9 quart then is 4 * 9 is 36

3(-2x-4y)-4(6y-x)
simplify

Answers

Answer:

Simplify the expression.

12xy−72yexponent 2 -6x

Step-by-step explanation:

got it from mathaway

Step 1: distributive property
-6x-12y-24y+4x
Step 2: Combine like terms
-2x-36y

Answer: -2x-36y

please help me please ​

Answers

Here's the solution in attachment :

Alegebra. Identify the vertex and axis of symmetry of each. Please answer and e0lain how and why you got your answers.

Answers

There is no information displayed.

Here is how to do it.

How to calculate axis of symmetry:

Plug your numbers into the axis of symmetry formula. To calculate the axis of symmetry for a 2nd order polynomial in the form ax 2 + bx +c (a parabola), use the basic formula x = -b / 2a. In the example above, a = 2 b = 3, and c = -1. Insert these values into your formula, and you will get:

How to calculate vertex:

The vertex form of a quadratic is given by

y = a(x – h)2 + k, where (h, k) is the vertex.

The "a" in the vertex form is the same "a" as

in y = ax2 + bx + c (that is, both a's have exactly the same value). The sign on "a" tells you whether the quadratic opens up or opens down. Think of it this way: A positive "a" draws a smiley, and a negative "a" draws a frowny. (Yes, it's a silly picture to have in your head, but it makes is very easy to remember how the leading coefficient works.)

In the vertex form of the quadratic, the fact that (h, k) is the vertex makes sense if you think about it for a minute, and it's because the quantity "x – h" is squared, so its value is always zero or greater; being squared, it can never be negative.

Suppose that "a" is positive, so a(x – h)2 is zero or positive and, whatever x-value you choose, you're always taking k and adding a(x – h)2 to it. That is, the smallest value y can be is just k; otherwise y will equal k plus something positive. When does y equal only k? When x – h, the squared part, is zero; in other words, when x = h. So the lowest value that y can have, y = k, will only happen if x = h. And the lowest point on a positive quadratic is of course the vertex.

If, on the other hand, you suppose that "a" is negative, the exact same reasoning holds, except that you're always taking k and subtracting the squared part from it, so the highest value y can achieve is y = k at x = h. And the highest point on a negative quadratic is of course the vertex.

Asking again since I still don’t understand

Skylar collects coins and stamps. She wants to organize her collections to display them together. She has 56 coins and 72 stamps,
and she wants the same number of each item in each display.

What is the greatest number of displays Skylar can make?

Enter your answer in the box.

Answers

Answer:

She can only display each item 56 times

Step-by-step explanation:

Since she has 72 stamps and 56 coins to have a even amount of both she can only make 56 displays

Answer: 8

Step-by-step explanation: Solve this problem with GCF (Greatest Common Factor).

Factors of 56: 1, 2, 4, 7, 8, 14, 28 and 56.

Factors of 72: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36 and 72.

So, the biggest among the numbers that are matching is 8.

What is the value of 3p^2 + 8 when p = 4?

Answers

Answer:

56

Step-by-step explanation:

First, copy the given expression. Then replace p with 4. Then evaluate the expression.

3p^2 + 8 =

= 3(4^2) + 8

= 3(16) + 8

= 48 + 8

= 56

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