Mathematics Middle School

Please answer the question

Answers

Answer 1

39.5 hope it helps you

Answer 2

Answer:

51.5

Step-by-step explanation:

Related Questions

Ahmad’s goal is to exercise for a mean of 45 minutes per day for one week. For the first six days of the week, he exercised 35, 40, 37, 42, 45, and 50 minutes. What is the number of minutes Ahmad must exercise on the 7th day to meet his goal for the week?

Answers

Answer:

41.5

Step-by-step explanation:

To find the mean, your supposed to add all the numbers you have and divide by how many numbers there are. In this question your numbers are 35, 40,37,42,45, and 50.

If you add them all up you get 249. Your next step is to divide by how many numbers there are. Since there are 6, your equation will now be 249 divided by 6. Your answer is now 41.5

So on the 7th day Ahmad exercised for 41.5 minutes. If you need to round then maybe 41 minutes.

Answer:

41.5

Step-by-step explanation:

On the 7th day Ahmad exercised for 41.5 minutes and if you want to put it simply its 41 minutes.

HEY CAN SOMEONE HELP ME FAST I GIBE BRAINLIST

Answers

Answer:

Step-by-step explanation:

Add all the "x" 's up.

1(2)=2

2(1)=2

3(1)=3

4(1)=4

5(4)=20

6(1)=6

7(1)=7

you add those up to get 44.

Now add all the individual "x" 's which equal 11.

44/11=4

Should be 4 because there is three on the left side and three on the right

The display at an aquarium has sea stars and eels in a ratio of 4:5. It also has 5/8 as many rockfish as sea stars. There are 40 more wolf eels than rockfish. How many Sea stars are there?

Answers

4.8 sea stars were there

64 sea stars in the aquarium.

What is Ratio?

Ratio is defined as a relationship between two quantities, it is expressed one divided by the other.

Ratio of see stars to eels = S : E = 4:5

E = 5/4(S)

Ratio of rockfish to sea strars = R : S = 5:8

R = 5/8(S)

E = R + 40

5/4(S) = 5/8(S) + 40

Multiply by 8 both the sides

10S = 5S + 320

5S = 320

S = 320/5

S = 64

Hence, 64 sea stars in the aquarium

Learn more about Ratio here:

brainly.com/question/1504221

#SPJ2

Evaluate : 1/2 ( 4x - 12) when x = 9

Answers

Answer: 12
Explanation:
Replace the X with nine then solve it in your parentheses first then multiply your parentheses by 1/2

Answer:

Step-by-step explanation:

plug in 9 for x in the equation

1/2 (4(9)-12)

I need to get aleks done on june 3oth

Answers

Answer:

3.2

Step-by-step explanation:

Since it is similar, we know that the sides are gonna be directly proportional so

QR (6.4) / BC (4) = scale factor of 1.6

1.6 x 2 = 3.2

Answer is 3.2 to your aleks

6. −7(x−6)=−70

7. Solve for n *(4 Points) 9+n=−2

Answers

Answer:

6. x = 16

7. n = -11

Step-by-step explanation:

6. -7(x-6)=-70

= -7x + 42 = - 70

= - 7x = - 70 - 42

= -7x = -112

= -7x/-7 = -112-/7

= x = 16.

7. 9 + n= - 2

= n= -2 - 9

= n = -11

Using inverse operations is a direct way to solving equations

What is the Golden Rule for solving equations?

Answers

Answer:

Do unto one side of the equation, what you do to the other!

Step-by-step explanation:

An equation is like a balance scale. If we put something on, or take something off of one side, the scale (or equation) is unbalanced. When solving math equations, we must always keep the 'scale' (or equation) balanced so that both sides are ALWAYS equal.

Answer:

Keeping the equation balanced.

Step-by-step explanation:

You need to keep the equation balanced on both sides of the equal sign, like when you need to get rid of the number 4 on one side you have to do the same thing on the other side.

Select all the expressions that are equal to 3/4

Answers

Answer:

A and B

Step-by-step explanation:

7/20 + 2/5 = 3/4

19/20 - 1/5 = 3/4

3 4/7 - 9/10 = 2 47/70

The answer is definitely A and B

PLS help me :)))) thx

Answers

Answer:

7) 96in²

8)292yd²

Step-by-step explanation:

6×2=12

14×6=84

84+12=96

26×7=182

22×5=110

182+110=292

Answer for the first one (7):

A = 96 square inches

Step-by-step explanation:

to find the unknown sides: 6+6=12

and: 14-12=2

then split into rectangles and find the area for each of them by multiplying the two sides and then add the two rectangles' areas together

Answer for the second image (6):

A= 229 square yards

Step-by-step explanation:

to find the unknown sides: 29-22=7

and: 26-21=5

split into rectangles find area for each of them then add the areas to get the answer

What is the product of the 6th square number and the 3rd square number

Answers

Answer:

6th square no is 36sq is 9

Answer:

It is 9+36 = 45

Step-by-step explanation:

Sara decides to bottle 1/3 of her milk. She pours the milk evenly among 5 bottles. What fraction of her milk will she put in each bottle? *

5 1/3
15
1/15
2/3

Thanks!!!!

Answers

Answer:

Is 1/15

Explicación:

Ya que dividiendo 1/3 para 5 das 1/15.

Since dividing 1/3 for 5 gives 1/15.

1/15 because you would divide this right well nope you do kcf aka keep change flip and 5/1 would now be 1/5 and you changed division to multiplication so it looks like this 1/3x1/5

How many pints are in6 1/2quarts?

A: 3 1/4pt
B: 13 pt
C:19 1/2pt
D: 26 pt

Answers

Answer:

B. 13 pt

Step-by-step explanation:

There are 2 pints in 1 quart

2×6 1/2=13

Hope this helps! :)

It is 13. The first person was corret

Explain and answer pls :)

Answers

36 is the only logical answer

Answer:

first write boys/girls=2/3 then we know there are 24 boys so; 2/3=24/girls .so we have 24×3/2=36= girls number.

Which rule about the sign of the quotient of positive and negative decimals is correct?

Answers

Answer:

negative decimal

Step-by-step explanation:

A positive decimal divided by a negative decimal is always a negative decimal

Answer:

Even though you didn't show the answer choices heres something that might help: A negative sign multiplied by another negative sign would give you a positive sign.

Step-by-step explanation:

Consider the following 8 numbers, where one labelled x is unknown.
50, 22, 42, x, 30, 42, 9, 23
Given that the range of the numbers is 66
work out 2 values of x

Answers

Answer:

x=75 or x=-16

Step-by-step explanation:

these are the two answers

maybe x=16 big maybe

A coffee grinder uses a current of 1.20 A and has a resistance of 100 ohms. Calculate the voltage explain

Answers

Answer:

Step-by-step explanation:

I = V / R

Current = (voltage) / (resistance)

Current = (500 V) / (250 ohms)

Current = (500/250) Amperes

Current = 2 Amperes

120V

VOLTAGE = CURRENT * RESISTANCE

1.20A * 100ohms

Question:
A running club keeps track of the number of hours each person has trained for a race and the length of time it takes the person to run the race. A scatter plot is graphed with the x-axis indicating the number of hours a runner has trained and the y-axis indicating the time, in minutes, it took to run the race. The equation y = 60 - 0.5x is used as the line of best fit of the data. What does the slope of the equation represent?

options:

a
Runners will decrease their race time by 2 minutes for every 1 hour they have trained.
b
Runners will increase their race time by 2 minutes for every 1 hour they have trained.
c
Runners will increase their race time by 1 minute for every 2 hours they have trained.
d
Runners will decrease their race time by 1 minute for every 2 hours they have traine

Answers

The solution is, 60 minutes is a good prediction of how long it will take Tom to run the 6 mile race.

What is scatter plot?

A scatter plot is a type of plot or mathematical diagram using Cartesian coordinates to display values for typically two variables for a set of data. If the points are coded, one additional variable can be displayed.

Here, we have,

We are given the scatter plot which shows the distance he has run and the time it took for each run.

We are asked to determine a good prediction of how long it will take Tom to run the 6 mile race?

One way to predict the time is by drawing a line that best fits the given data.

As you can see, from the line of best fit, the time corresponding to the 6 miles is around 60 minutes.

Therefore, 60 minutes is a good prediction of how long it will take Tom to run the 6 mile race.

Answers

1:a 2:d 3:c basically do that

A storage box has a height of 8 inches, length of 4 inches, and a width of 4 inches. I use cubes with an edge length of 12 inch. If the box is completely full, how many cubes will fit in the storage box?

Answers

Answer:

Step-by-step explanation:

8×4=32×4=128

12×3=36

128÷36= 3.5

but u need to put full cubes which would be 3

The answer is 3 I don’t really know how to explain it

Part of the population of 4,750 elk at a wildlife preserve is infected with a parasite. A random sample of 50 elk shows that 5 of them are infected. How many elk are likely to be infected? Based on the sample, there will likely be infected elk in the wildlife preserve

Answers

Answer:

ANSWER IS 475

Step-by-step explanation:

because using the rule of three aka 4750 x 5 = 23750 divided by 50 = 475

Anybody know this I don't want to go to summer school I'm being serious pls help

Answers

Answer:

the bus is travelling faster

It is travelling faster by 22-18= 4 meters per second

Step-by-step explanation:

if you divid the meters per second you get 22 for the car and 18 for the bus

it's going faster by 4 meters per second\

The bus is traveling faster

i neeed helppppp plssssssssssssssss

Answers

Well since there are 8 total possible outcomes you would take 8 and divide it by the total of green parts which would be 2 so you would do 8 divided by 2 which would give you 4 so your answer would be 4

Hope this helps

Answer

2/8

I’m not positive

PLZ ANSWER ASAP for brainliest!

Answers

Answer:

I think it is C because it keeps on going and it doesnt stop at 0

hope this :)

Step-by-step explanation:

Mark as brainllest if it helps

I believe the answer is option c.

Please help it’s really hard for me

Answers

Answer: Question #1 is Unit Fraction. Question #2 is Fraction. And Question #3 is Equal To.

Step-by-step explanation: Hope this helps! Have a fantastic day!

Number 1 is unit friction, number 2 is friction and number 3 is equal to

50 points! Answer AS much as you can, I give Brainliest!

Answers

Answer:

9. y = 8

10. n = 21

11. 44 = v

12. c = 35

Step-by-step explanation:

9. 9y = 72

Divide each side by 9

9y/9 = 72/9

y = 8

10. 3n = 63

Divide each side by 3

3n/3 = 63/3

n = 21

11. 4 = v/11

Multiply each side by 11

4*11 = v/11*11

44 = v

12. c/7 = 5

Multiply each side by 7

c/7*7 = 5*7

c = 35

y=8
n=21
v=44
c=35

hope that helps

HELPPPPP!!!!!!!!!!!!!!!!!!!

Answers

Answer:

I think $10 is the answer

Just to confirm the last answer it is 10 dollars I think

What is the area of the figure below?

Answers

answer: 88in^2
explanation: by separating the figure into easier pieces, simple triangles and rectangles, this problem becomes much easier.
by looking the overall length of the figure, we get 7, if you cut off the big rectangle in the middle from that seven, you end up with a diamond with a height of 10 and a length of 4. multiply those together to get the area of the points on either side.
10 x 4 = 40
now looking back at the rectangle, by adding up the heights, you get a height of 16. multiply this with the length of 3 and you get 48.
add the two and you get the total area.
40 + 48 = 88

Answer:

68 in

Step-by-step explanation:

Because the area of the squares is 3 x 3 = 9 and because there are two squares it is 18. The area of the central figure is 50 because i divided it into 4 triangles and 2 rectangles, each rectangle is 15 in and each triangle is 5 in so 15 x 2 = 30, 5 x 4 = 20 and 30 + 20 + 18 = 68

What is the distance between the following points?

Answers

Answer:

Step-by-step explanation:

it's c, the square root of 36

A bullet of mass m1 = 0.020 kg is fired with initial speed v1 into a block of mass m2 = 0.500 kg that is initially at rest. The bullet becomes embedded in the block and the pair slide along to the right a distance d= 0.35 m over a rough surface with uk = 0.25. the spring (with k = 450 N/m) is compressed by a distance of x = 0.075 m. work backwards and determine the initial velocity of the bullet.

Answers

Bro this goes in physics

The ratio of dye to pounds of clothing is constant. A worker develops the chart below to show the amount of dye needed for different amounts of clothing.

For which weight of clothing is the ratio of weight to dye different from the other ratios?
21 pounds
42 pounds
84 pounds
105 pounds

Answers

Answer:

Step-by-step explanation:

The answer is B, 42

The answer will be 42 pounds

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