Jane got scores of 67, 83, and 79 on three math tests. What must her score be on the fourth test for the average of the four to be 80? ​

Answers

Answer 1
The answer is 91% for the fourth math test

Related Questions

3x2 – 5x + 2
please help me solve this

Answers

Answer:

3x2 – 5x + 2 = ( 3x-2)( x-1)

Step-by-step explanation:

I hope this helps you!

Have a nice dayyy <3

Answer:

[tex](3x-2)(x-1)[/tex]

Step-by-step explanation:

Find the area of the circle. Use 3.14
42 mm

Answers

Answer:

A = 5538.96mm

Step-by-step explanation:

A = πr2

A = π × 422  

A = 1764π

A = 5538.96

Please mark as brainliest if answer is right

Have a great day, be safe and healthy  

Thank u  

XD  

Find the probability of picking 2 blue marbles when 2 marbles are picked (with replacement) from a bag containing three blue and one yellow marbles

Answers

Answer: 0.5

Step-by-step explanation:

Given

There are 3 blue and 1 yellow marble

The chance of picking two marble out of 3 is [tex]^3C_2[/tex]

The total no of ways of picking 2 marbles out of 4 is [tex]^4C_2[/tex]

Therefore, the probability of picking 2 blue marbles

[tex]\Rightarrow P=\dfrac{^3C_2}{^4C_2}\\\\\Rightarrow P=\dfrac{3\times 2}{4\times 3}\\\\\Rightarrow P=\dfrac{1}{2}[/tex]

Graph ATUV with vertices T(-3, 2), UC-1, 0), and (4,-2) and its image after the glide reflection.

Answers

Answer:

T (2, 2)

U (4 , 0)

V (1, -2)

Step-by-step explanation:

The translation is (x + 5, y), meaning 5 is being added to the X-values and Y stays the same.

Whitney had 84 fish in her fish tank. She gave 14 fish to her friend Max. Then, she moved 29 fish to another tank How many fish are still in the first fish tank

Answers

Answer:

41

Step-by-step explanation:

Started with 84

less               14

less.              29

=.                   41

Determine the perimeter of the shape below

Answers

Answer:

43.566 ft

Step-by-step explanation:

Straight sides: 2 long 1 short

2 x 10 + 8 = 28 ft

Curved side: Remember that the circumference of a circle is 2πr or πd.

Since this is a semicircle, divide the circumference you get by 2.

From the diagram: d = 8

total circumference = 8 x π = 8π

semicircle = 8π ÷ 2 = 4π ft

Total perimeter

= (28 + 4π) ft

= (28 + 12.566) ft (5sf)

= 43.566 ft (5sf)

Answer : 40.57 ftStep by step explanation :

The radius of the hemicircle is r = 8/2 cm = 4 cm.

So the perimeter of the hemicircle part is

[tex]\pi \times r \: = (22 \div 7) \times 4 = 12.57 \: cm[/tex]

The perimeter of the rectangular part = 10+10+8 = 28 cm.

So, the final answer is

[tex]28 \: cm + 12.57 \: cm = 40.57 \: cm[/tex]

Which side lengths form a right triangle?

Answers

Answer:

a is the answer

hope this will help you

HELP DUE IN 15 MINS!

Assume that any lines that appear to be tangent are tangent.

perimeter =??

Answers

Answer:

Perimeter = 55.4

Step-by-step explanation:

8 + 8 + 8.7 + 8.7+ 11 + 11 = 55.4

Hope this helps!


what is the value of x WILL GIVE BRAINLIEST ANSWER

Answers

Answer:

x = 116°

Step-by-step explanation:

number of degrees in a pentagon is (5-2)180° = 540°

x + 121 + 90 + 115 + 98 = 540

x + 424 = 540

x = 116°

Can someone please help me with math.

Answers

Answer:

C and A

Step-by-step explanation:

So first, off, to find the length of a line, we can use pythagreons theorm.(A^2+B^2=C^2) The cahnge in x squared and the change in y squared will give us C, which is the line length. You can count the tiles like this:

From the bottom point, lets count up the x coordinates till we hit the x coordinates of the top point. I got 3.

Next is the y coordinates.

When I count up until I reach the top point, I get 7. Lets plug these numbers in:

3^2+7^2=C^2

Use the square root on eahc number except for the unknown(C)

=

9+49=c^2

Add the two numbers together:

=

58=c^2

Take square root:

7.61=c^2

This can just be rounded to 7.6

This looks like C

So that is your first answer.

Next we have a table.

We need to look at the section of people that have both brown hair and eyes.

When I look at the table, I see 30 people whom how both these charcteristics.

When you looka the total people in the bottom right corner, you see that there are 120 people.

We do not even need to calculate percentage.

30 is 1/4 of 120.

What is 1/4 of 100%

25%

So the people with both brown eye/hair color is 25%

THis looks like answer A

I hope this helps! :)

how do you find the perimeter of a half circle

Answers

Answer:

The perimeter of a semicircle is the sum of the half of the circumference of the circle and diameter. As the perimeter of a circle is 2πr or πd. So, the perimeter of a semicircle is 1/2 (πd) + d or πr + 2r, where r is the radius.

Step-by-step explanation: .

Answer:

πr

Step-by-step explanation:

We know the perimeter of the circle is 2πr , half the perimeter will be equal to ,

=> 2πr/2

=> πr

Hence the required answer is πr .

How many feet of fencing is needed to enclose a rectangular garden with a 9 foot long side and a 15 foot long diagonal

Answers

Answer:

42 ft

Step-by-step explanation:

To find the unknown side:

[tex]\sqrt{15^2-9^2} =12[/tex]

Total perimeter: 2(12 + 9) = 42 ft

hey what's the answer !!

[tex] \sqrt{98 - ( 17)} [/tex]

(ノ≧∇≦)ノ ​

Answers

Answer:

√98-17

=√ 81

=√ (9)^2

=9 is ans

Answer:

[tex] \sqrt{98 - ( 17)} [/tex]

[tex] {\sqrt{81}} [/tex]

[tex] {\sqrt{9²}} [/tex]=±9

is your answer

Circle the table letter below that represents a proportional relationship to this original table:

Cups of Flower Number of cookies
0.5 1 dozen
3/4 1.5 dozen
3 6 dozen

Answers:

(A)
Cups of Flower Number of cookies
1 2 dozen
1/4 0.5 dozen
1.5 3 dozen

(B)
Cups of flower Number of cookies
1 1.5 dozen
3/4 1 dozen
1.5 3 dozen

(C)
Cups of flower Number of Cookies
0.5 1 dozen
3/4 1.5 dozen
2 5 dozen

(D)
Cups of flower Number of cookies
1.5 3 dozen
3/4 0.5 dozen
4 8 dozen

Answers

Answer:

immma send you the link friend me on hereStep-by-step explanation:

A butcher purchases 50 chicks at the rate of Ts.60 per chick.10 of them died and he sold remaining chicks at the rate of Rs.80 per chick. Find profit or loss percentage.

Answers

Answer: 6.25%

Step-by-step explanation:

50 chicks were purchased at Rs. 60. The total cost of the chicks is:

= 50 * 60

= Rs. 3,000

10 of the chicks died which means the farmer was left with 40 chicks.

These chicks are sold at Rs. 80. Total revenue from the sales are:

= 40 chicks * 80

= Rs. 3,200

The profit is:

= 3,200 - 3,000

= Rs. 200

The percentage is:

= Profit / Revenue

= 200 / 3,200

= 6.25%

9. Joanna is considering two job offers. Phoenix Fashions offers

$1500/month plus 2.5% commission. Styles by Rebecca offers

$1250/month plus 5.5% commission.

a) Create a linear system by writing an equation for each salary.

b) What value of sales would result in the same total salary

for both jobs?

c) Which job should Joanna take? Explain your answer.

Answers

Answer:

A] 1500 + 0.025x , 1250 + 0.055x ; B] Sales value = 8333

C] Offer 1, if prefers more fix salary over additional incentive. And, offer 2 if  prefers additional incentive over fix salary.

Step-by-step explanation:

Let the sales be = x

A] Offer 1 = 1500 + 2.5% comm on sales = 1500 + 2.5%x = 1500 + 0.025x

Offer 2 = 1250 + 5.5% comm on sales = 1250 + 5.5%x = 1250 + 0.055x

B] Value of sales, resulting in total salary : at equation 1 = equation 2

1500 + 0.025x = 1250 + 0.055x

1500 - 1250 = 0.055x - 0.025x → 250 = 0.03x

x = 250 / 0.03 →  x (Sales value) = 8333

C] Which job she should take, would depend on her preferences.

If she wants more fixed salary, & less above per unit achievement, she should take offer 1 as fixed salary 1500 > 1250. If she wants less fixed salary & more additional incentives, she should take offer 2, as commission 5.5% > 2.5%

Which two shapes have perimeters of 18 feet but have different areas?(1 point)
A rectangle with a length of 9 ft. and a width of 2 ft. and a rectangle with a length of 6 ft. and a width of 3 ft.
A rectangle with a length of 5 ft. and a width of 3 ft. and a square with a side length of 4 ft.
A rectangle with a length of 7 ft. and a width of 2 ft. and a rectangle with a length of 6 ft. and a width of 3 ft.
A rectangle with a length of 8 ft. and a width of 2 ft. and a square with a side length of 4 ft.

Answers

Answer:

they have different areas and different perimeters

Step-by-step explanation:

Y= 200,000 (0.95)^2. How many birds will be there in 10 years?

Answers

Answer:

Kathleen, a professional golfer, had an average score last season

of 80 points. This season, her average score has been 72 points.

What is the percent of decrease in Kathleen's average score

what number goes into the missing space

Answers

Answer:

12

Step-by-step explanation:

mrk me brainliest plzzzzzzzzzz

Answer:

b) 12

Step-by-step explanation:

The first image shows the top 2 numbers as 5 and 2 = 5 * 2

=> 10

The Second image shows the top 2 numbers as 3 and 3 = 3 * 3

=> 9

So, the third image shows the top 2 numbers as 2 and 6 = 2 * 6

=>12

Therefore, the missing space in the third circle is b) 12

Hope it helps :)

I NEED HELP ASAP THIS IS DUE IN 10 MIN HELP MEE

Answers

Answer:

Step-by-step explanation:

i cant see it. its not letting me zoom in ill help you but i cant see it

Answer:

8, 8

Step-by-step explanation:

it would be 8, 8 because all the way in the upper right hand corner would be where the x and y axis meet and equal 8, 8

when twice a number is increased by 10, the sum is 42.what is the number?

Answers

22, hope this helps! :))
It’s 16 because 16+16 is 32 plus 10 sums to 42 pls make me the brainliest

Determining the Length of a Rod
Jorge needs to ship a thin metal rod to a metalworking shop. The only boxes available for shipping are 7-inch cubes. To the nearest inch, what is the length of the longest metal rod that can be sent?
11 inches
12 inches
13 inches
14 inches

Answers

The length of the longest metal rod that can be sent in a 7-inch cube box is 12 inches.

To determine the length of the longest metal rod that can be sent in a 7-inch cube box, we need to consider the diagonal of the cube as the maximum length of the rod.

In a cube, the diagonal can be calculated using the Pythagorean theorem. The formula for the diagonal of a cube is:

diagonal = √(side^2 + side^2 + side^2)

Since we know that the cube has sides of 7 inches, we can substitute this value into the formula:

diagonal = √(7^2 + 7^2 + 7^2)

diagonal = √(49 + 49 + 49)

diagonal = √147

diagonal ≈ 12.124 inches

Therefore, the correct answer is:

12 inches

This means that the metal rod should not exceed 12 inches in length in order to fit inside the 7-inch cube box for shipping. Any rod longer than 12 inches would not be able to fit diagonally within the box.

For more such questions on metal rod

https://brainly.com/question/14071390

#SPJ8

Right triangle ABC is shown. Triangle A B C is shown. Angle A C B is a right angle and angle C B A is 50 degrees. The length of A C is 3 meters, the length of C B is a, and the length of hypotenuse A B is c.

Answers

Question:

Obtian the equation that can be used to solve for c

Answer:

Sin50 = 3/c

Step-by-step explanation:

A triangle showing the information given has been attached below for clarity :

Using trigonometry :

AC = 3 = opposite side of angle 50°

AB = c = hypotenus

Using the sine relation of a right angled triangle :

Sin θ = opposite / hypotenus

θ = 50°

Sin 50° = 3 / c

Sin50 = 3/c

Line t is mapped onto line m by a dilation centered at the origin with a scale factor of 2. The equation of line t is 3x-y=4. Determine and state an equation for line m.

Answers

9514 1404 393

Answer:

  line m: 3x -y = 8

Step-by-step explanation:

The dilation scale factor affects only the constant in a linear equation. The scaled lines are parallel to each other, so the slope, or ratio of coefficients, does not change.

3x -y = 4 scaled by a factor of 2 becomes 3x -y = 8.

3. During geometry class, Mr. Jones constructed the perpendicular bisector of segment AB as
shown below.

If AC = 4x + 12 and BC = 2x + 18, find AB.
A. 3
B. 6
C. 24
D. 48

Answers

Answer:

D

Step-by-step explanation:

sam said the absoulute value of 14 is -14. Kai said the absolute value of 14 is 14. Who is correct. Explain

Answers

Answer:

Kai is right.

Step-by-step explanation:

Absolute Value is always positive.

Answer:

Kia is Right.

Step-by-step explanation:

14 always stay positive and when it is like -14, So -14 Is a negative number so just take out the negative sign and you well be all set.

Choose the statement that best describes the error in finding the volume of the solid.

Answers

Answer:

the formula used gives surface area instead of volume

Solve for v.

–9,45 − 6,1v = –2,8v + 13,98

Answers

Answer:

V would equal -7.1.

Step-by-step explanation:

It appears you have set the decimal points as commas. Let's remove that and replace it with decimal points. (AkA ".")

First, we move every term with "V" in this problem to the left.

-9.45 - 3.3v = 13.98

Next, we add -9.45 to 13.98 which equals 23.43.

We then make 3.3v negative.

-3.3v = 23.43

We then divide 23.43 and 3.3v by 3.3.

We cancel out 3.3v to leave 23.43/3.3.

We can now divide 23.43 by 3.3 to get -7.1.

V = -7.1

Answer:

V would equal -7.1.

Step-by-step explanation:

ALGEBRA 1 / GRAPHING

Answers

Answer:

first and third from up to down

Step-by-step explanation:

you use a dashed line if the inequality does not have an equal so is just > or <

What that person said ^^^

Help please please help…….

Answers

Answer:

Choice A

Step-by-step explanation:

y-intercept = -3

double-checked on calculator

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