Sandra took 4 tests in math and her mean score was 18. I she scored 18, 22, and
17 in three tests, find Sandra's score in the fourth test.

Answers

Answer 1

Answer:

15

Step-by-step explanation:

(18+22+17+x)/4=18

18+22+17+x=18×4

57+x=72

x=72-57

x=15


Related Questions

In a museum there is a sculpture in the shape of a cylinder. The cylinder has a diameter of 12 feet and a height of h feet. Which equation can be used to find V, the volume of the cylinder in cubic feet? Group of answer choices

Answers

Answer:

Volume of the cylinder =

= 36πh cubic feet

= 113.1h cubic feet

Step-by-step explanation:

In a museum there is a sculpture in the shape of a cylinder. The cylinder has a diameter of 12 feet and a height of h feet. Which equation can be used to find V, the volume of the cylinder in cubic feet? Group of answer choices

The formula for the volume of a cylinder is = πr²h

From the above question:

Diameter = 12 feet

Radius = Diameter/2

= 12 feet/2 = 6 feet

Height = h

Hence:

Volume of the cylinder =

(π × 6² × h )cubic feet

= 36πh cubic feet

= 113.09733553h cubic feet

Approximately = 113.1h cubic feet

Apply the Pythagorean Theorem to find the distance between points A and B

Answers

The answer is b, hope I helped :)

- Select the expression equivalent to (-5x + 3) + (15x + 3).
A) 10x + 6
B) -10x + 6
C 20x + 6
D -20% + 6

Answers

Answer:

10x+6

Step-by-step explanation:

simplify step-by-step.

−5x+3+15x+3

Combine Like Terms:

=−5x+3+15x+3

=(−5x+15x)+(3+3)

=10x+6

Answer:

A) 10x +6

Step-by-step explanation:

Add -5 and 15x.

Add 3 and 3

10x +6

Mike 24 coins in nices and dimes they are valued at $2.05. how many DIMES does he have?​

Answers

Answer: He has 8 dimes

Step-by-step explanation:

Answer:

17 dimes

7 nickels

Step-by-step explanation:

n = number of nickels

d = number of dimes

0.10d + 0.05n = 2.05

n + d = 24, n = 24 - d

substitute for n:

0.10d + 0.05(24 - d) = 2.05

simplify:

0.10d + 1.20 - 0.05d = 2.05

0.05d = 0.85

d = 17

n = 24-17 = 7

Divide these numbers in the given ratios:
a) R450 in the ratio 1:3:1
b)144 kg in the ratio 1:3:5​

Answers

Dont know but mabye someone who is not 8 will know

B is the answer to the question

Which expressions are equivalent to this exponential expression?
6-10
6-4
06-6
0 66
0
1
0
O
1
36

Answers

Answer:

6*6=36

Step-by-step explanation:

6*6. 6 with exponent of 2=36

what is the area of this triangle

Answers

Answer:

18

Step-by-step explanation:

you need to multiply the base by the height then divide it by 2

I was working on this question and and a bit confused, somebody plz help!! :)

Answers

The answer should be 6s^3 because you add the two powers together since the number (6) is the same

Answer:

36s³

Step-by-step explanation:

Using the rule of exponents

[tex]a^{m}[/tex] × [tex]a^{n}[/tex] ⇔ [tex]a^{(m+n)}[/tex]

Given

6s² × 6s

= 6 × s² × 6 × [tex]s^{1}[/tex]

= 6 × 6 × s² × [tex]s^{1}[/tex]

= 36 × [tex]s^{(2+1)}[/tex]

= 36s³

PLEASE HELP ME

If f(x) = 3x - 6, what is the value of f(-5) ?
A. +9
B. -14
C. -21
D. +2

Answers

i believe it’s A .....

In the diagram below DE is the midsegment of AABC.
Find the length of DE and BC.

Answers

Answer:

DE = 5

BC = 10

Step-by-step explanation:

ΔAED is a right triangle with legs of 4 and 6/2 = 3

Use the Pythagorean theorem to find DE

[tex]4^{2} + 3^{2} = DE^{2}[/tex]

16 + 6 = 25 = [tex]DE^{2}[/tex]

DE = 5

The midsegment of a triangle is 1/2 the length of the corresponding side.

Therefore, BC = 2 DE = 2(5) = 10 = BC

Find a single expression that represents the perimeter of the triangle.
A) x + 1
C) 3x − 1
B) 5x − 3
D) 9x − 3

Answers

Answer:

D

Step-by-step explanation:

Combine like terms

A population of a city is 30 000 and decreases 3% each year. If this trend continues. what will the population be after 10 years?

Answers

Answer:

22123

Step-by-step explanation:

→ Find the multiplier

3% decrease = 0.97

→ Multiply the population by the multiplier which is to the power of years

30000 × 0.97¹⁰ = 22122.7 = 22123

What is the FNAF timeline

Answers

Answer:

Step-by-step explanation:

Five Nights at Freddy's (2014)

Five Nights at Freddy's 2 (2014)

Five Nights at Freddy's 3 (2015)

Five Nights at Freddy's 4 (2015)

Five Nights at Freddy's: Sister Location (2016)

Freddy Fazbear's Pizzeria Simulator (2017)

Ultimate Custom Night (2018)

Five Nights at Freddy's: Help Wanted (2019)

Five Nights at Freddy’s: Special Delivery (2019)

Five Nights at Freddy’s: Security Breach (2021)

Answer: Fnaf timeline is the like years the games(etc.) were released.

4.1.1 Five Nights at Freddy's (2014)

4.1.2 Five Nights at Freddy's 2 (2014)

4.1.3 Five Nights at Freddy's 3 (2015)

4.1.4 Five Nights at Freddy's 4 (2015)

4.1.5 Five Nights at Freddy's: Sister Location (2016)

4.1.6 Freddy Fazbear's Pizzeria Simulator (2017)

4.1.7 Ultimate Custom Night (2018)

4.1.8 Five Nights at Freddy's: Help Wanted (2019)

4.1.9 Five Nights at Freddy's: Special Delivery (2019)

4.1.10 Five Nights at Freddy's: Security Breach (2021)

4.2 Spin-offs

4.2.1 FNaF World (2016)

4.2.2 Freddy in Space 2 (2019)

4.2.3 Security Breach: Fury's Rage (2021)

6.1.1 Five Nights at Freddy's: The Silver Eyes (2015)

6.1.2 Five Nights at Freddy's: The Twisted Ones (2017)

6.1.3 Five Nights at Freddy's: The Fourth Closet (2018)

6.2 Anthology series

6.2.1 Five Nights at Freddy's: Fazbear Frights #1: Into The Pit (2019)

6.2.2 Five Nights at Freddy's: Fazbear Frights #2: Fetch (2020)

6.2.3 Five Nights at Freddy's: Fazbear Frights #3: 1:35 AM (2020)

6.2.4 Five Nights at Freddy's: Fazbear Frights #4: Step Closer (2020)

6.2.5 Five Nights at Freddy's: Fazbear Frights #5: Bunny Call (2020)

6.2.6 Five Nights at Freddy's: Fazbear Frights #6: Blackbird (2020)

6.2.7 Five Nights at Freddy's: Fazbear Frights #7: The Cliffs (2021)

6.2.8 Five Nights at Freddy's: Fazbear Frights #8: Gumdrop Angel (2021)

6.2.9 Five Nights at Freddy's: Fazbear Frights #9: The Puppet Carver (2021)

6.2.10 Five Nights at Freddy's: Fazbear Frights #10: Friendly Face (2021)

6.2.11 Five Nights at Freddy's: Fazbear Frights #11 (2021)

6.2.12 Five Nights at Freddy's: Fazbear Frights #12 (2021)

Step-by-step explanation:

Im sorry if im wrong-

A rectangular tank is 24 cm wide, and 30 cm long. It contains a stone and is filled with water to a height of 8 cm. When Amy pulls the
stone out of the tank, the height of the water drops to 6 cm.
Find the volume of the stone. Be ready to explain the steps you took to solve the problem on the next slide (16).
What is the formula for VOLUME?
V
What is the VOLUME of the STONE? Remember to LABEL answer

Answers

Answer:

Formula for volume = length (L) × width (W) × height (H)

Volume of the stone = 1,440 cm³

Step-by-step explanation:

✔️Formula for the rectangular tank = L*W*H

✔️Volume of the stone = volume of the tank with the stone - volume of the tank without the stone

✔️Volume of the tank with the stone:

L = 30 cm, W = 24 cm, H = 8 cm (height of water when the stone was in the tank)

Volume of the tank with the stone = 30*24*8 = 5,760 cm³

✔️Volume of the tank without the stone:

L = 30 cm, W = 24 cm, H = 6 cm (height of water when the stone was pulled out)

Volume of the tank with the stone = 30*24*6 = 4,320 cm³

✅Volume of the stone = 5,760 - 4,320 = 1,440 cm³

Write and solve an inequality for the following. As a salesperson you are paid $75 a week plus $3 per sale. This week you want to make at least $150.

Answers

Answer:

x≥25

Step-by-step explanation:

150-75=75

75/3=25

What is this anyone ???

Answers

Answer:

7.2x10^13

Step-by-step explanation:

Mr. barrera has 2 bags of cat food. One bag has 20 ounces and the other has 3 1/2 times as much as the first bag. If Mr. Barrera uses 1/5 of the cat food from the larger bag to feed his cats, how many ounces of cat food did he use?

Answers

Answer: 14 oz

Step-by-step explanation: Trust me it’s right

The number of ounces of cat food that Mr. Barrera used is; 14 Ounces (Oz)

Number of bags with cat food = 2 bagsNumber of ounces in first bag = 20 Oz

Other bag has 3½ times as much as first bag. Thus;

Number of ounces in second bag = 3½ × 20 = 70 Oz

He uses 1/5 of the cat food from the larger bag.

Thus;

He used; 1/5 × 70 = 14 Oz of cat food

Read more about proportions at; https://brainly.com/question/1781657

In the figure given below, AB is a diameter of the circle with center o
0
B
D
If m ZABC - 30 and m ZCAD = 140" what is m ZBAD?
600
700
80
1100
Previous
Type here to search
O

Answers

Answer:

∠ BAD = 80°

Step-by-step explanation:

∠ ACB = 90° ( angle in a semicircle )

∠ CAB = 180° - (90 + 30)° ← sum of angles in Δ ABC

∠ CAB = 180° - 120° = 60°

Then

∠ BAD = ∠ CAD - ∠ CAB = 140° - 60° = 80°

Answer:

80° is the answer

Step-by-step explanation:

I just took the test

WILL GIVE BRAINLIEST

Answers

Option D is the logical and the right answer

Answer:

The answer is D

Witch set of base ten blocks models the difference of 47 and 12? 47-12=

Answers

Answer:

the answer is D

Step-by-step explanation:

A home was sold in 2010 for $250,000. Its value
depreciated by 3.4% yearly. What is the value of the
house in 2012?

Answers

Depreciation formula: starting value x (1-rate)^time

250,000(1-0.034)^2 years

250000(0.996)^2= $233,289

The answer is $233,289

Answer:

$233,289

Step-by-step explanation:

250000 *.034=8500

250000-8500=241,500

repeat

2.95___2.949 which is greater

Answers

Answer:

Step-by-step explanation:

Put them in your calculator. I think you'll find 2.95 is larger by 0.001

Do it like this 2.95 - 2.949 = 0.001

what is the solution?

Answers

Answer:

A

Step-by-step explanation:

How do i solve this?

Answers

Answer:

Step-by-step explanation:

hello:

(2+4)/-2 = 6/-2 = -3

(2-4)/-2 = -2/-2 = 1

an quadratic equation is :   (x+3)(x-1) =x²+2x-3

all quadratic are : a(x+3)(x-1)      a in R

Three rooms in Bob's house measure 12 x 12 feet each.
What expression shows their total area?

Answers

Answer:

432 square feet

Step-by-step explanation:

1) 12 * 12 = 144 (square feet) per room

2) Multiply by three b/c there are three rooms: 144 * 3 = 432

Answer:

2985984

Step-by-step explanation:

i think its right i might be wrong

Write an inequality for the statement the temperature is greater than 100°F

Answers

Tenperature greater than 100 oF
T > 100 oF

What is the value of X?

Answers

Answer:

It is 23

Step-by-step explanation:

BC= FE

(x-4)=19

Therefore x= 23

3/4 contained in 15 please help​

Answers

Answer:

11.25

Step-by-step explanation:

of-contained refers to multiplication

3/4*15

I’m guessing 11 1/4 lemme know if I’m wrong:)

Please help me with the answer on this question

Answers

C is the most accurate answer

AB and CD intersect each other at O and O is the mid-point of both AB and CD. Prove that AC = BD and AC || BD.

Answers

Answer:

Following are the proving to this question:

Step-by-step explanation:

Please find the graph image in the attachment.

Given O is the mid-point of AB and CD

[tex]\to OA=OB \\\\\to OC=OD\\\\In\ \Delta AOD,\Delta BOC\\\\AO=BO\\\\ CO=DO\\\\ \angle AOD= \angle BOC (\text{vertically opposite angles}) \\\\[/tex]

[tex]By \ S.A.S \ congruency \\\\\Delta AOD \cong \Delta BOC \\\\\to AD=BC[/tex]

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