There are a total of 66 students in the fourth grade at Northp Elementary school. Class A has five more students than Class B. Class C has 2 less students than class B. How- many students are in class A?​

Answers

Answer 1

Answer:

12

Step-by-step explanation:

66 = A+B+C

A = 5+B

C= B-2

66= 5+B+B+B-2

66=3+3B

63=3B

B=7

A=5+B = 5+7 =12


Related Questions

Please help, This is due at 5 pm
Question 1(Multiple Choice Worth 4 points)
(07.01)
Which of the values in the set {2, 3, 4, 5} is a solution to the equation 2x + 4 = 10?

2
3
4
5
Question 2(Multiple Choice Worth 4 points)
(07.01)
Geoffrey is trying to earn $50 to buy a video game. He has saved $14.25. He earns $3.75 per hour cleaning windows with his uncle and he earns $6.50 per hour working at the grocery store. Can Fred buy the video game if he works with his uncle for 3 hours and at the grocery store for 4 hours? Use the inequality 3.75y + 6.50z + 14.25 ≥ 50.

Yes, because the total will be $51.50.
Yes, because the total will be $60.25.
No, because the total will be $24.50.
No, because the total will be $37.25.
Question 3 (True/False Worth 4 points)
(07.01)
True or False?
k = 3 over 4 is a solution to the inequality 12k + 2 < 12.

True
False
Question 4(Multiple Choice Worth 4 points)
(07.01)
Which of the values for x and y make the equation 3x + 4y + 6 = 26 true?

x = 4, y = 2
x = 5, y = 6
x = 4, y = 3
x = 3, y = 5
Question 5(Multiple Choice Worth 4 points)
(07.01)
Which of the following sets shows all the numbers from the set {1, 2.5, 3, 4.5, 5} that make the inequality 3a + 4 ≥ 13 true?

{2.5, 3, 4.5}
{1, 2.5}
{3, 4.5, 5}
{4.5, 5}

Answers

Answer:

Step-by-step explanation:

1) 2x+ 4 = 10

2x = 6

x = 3 (3 is the answer)

2) we have to substitute y with 3 and z with 4

3.75*3 + 6.50*4 ≥ 50

11,25 + 26 ≥ 50

37.25 ≥ 50

so the answer is no, because the total will be $37.25

3)  12k + 2 < 12

12k < 10

k < 5/6

3/4 < 5/6  so the answer is true

4) we have to try the options

a)  3*4 + 4*2 + 6 = 26

12 + 8 + 6 = 26

26 = 26 (true)

b) 3*5 + 4*6 + 6 = 26

15 + 24 + 6 = 26

45 = 26 (false)

c) 3*4 + 4*3 + 6 = 26

12 + 12 + 6 = 26

30 = 26 (false)

d) 3*3 +4*5 + 6 = 26

9 + 20 + 6 = 26

35 = 26 (false)

so the answer is x=4 , y=2

5) 3a + 4 ≥ 13

3a ≥ 9

a ≥ 3

so the answer is {3,4.5,5}

In the figure, what is m∠ABE? What is m∠DBE? Enter your answers in the boxes.

Answers

Answer:

<DBE is 25.5

<ABE=115.5

Step-by-step explanation:

<DBE is 90-64.5 because DBC is a right angle

<DBE is 25.5

<ABE= 90+25.5 because ABD is a right Angle and DBE is 25.5

<ABE=115.5

Please hurry and help me

Answers

Answer:

The last option is your answer

Step-by-step explanation:

A video game system costs $350. The sales tax rate is 796, what
is the final cost
Your answer

Answers

Answer:

$377.86

Step-by-step explanation:

Given: Video game system costs $350, sales tax rate is 796.

To find: Final cost

Solve: Calculating Total Cost. Multiply the cost of an item or service by the sales tax to find out the total cost.

                                           3.5  × 7.96 = 27.86

Add the total sales tax to the Item or service cost to get your total cost.

                                           27.86 + 350 = 377.86

The final cost is $377.86

Kalani has these monthly liabilities: rent $879, car payment $315, credit card payment $102. She has an annual
income of $96,448. What is her debt-to-Income ratio, expressed as a percent?

Answers

Answer:

1.34%

Step-by-step explanation:

Given data

Rent =$879

Car payment =$315

Credit card payment= $102

Annual Income= $96,448

In all the  debt  is

=879+315+102

=$1296

Hence the debt to  income ratio is

=1296/96,448

=0.0134

As percent

=0.0134*100

=1.34%

14. Molly puts two shapes together to make a new shape. The new shape has 6 sides and 6 vertices. Which two shapes did she use? ΔΔ OA in​

Answers

She used two trapezoids.

She put one trapezoid on top and one on the bottom.

The shape she ends up making is a hexagon.

a/5=b/7 if b#0 what is the value of a/b​

Answers

Answer:

A = 20

b = 28

Step-by-step explanation:

a = 20/5 = 4

b = 28/7 = 4

An employee at the metropolitan museum of art surveyed a random sample of 150 visitors to the museum. Of those visitors, 45 people bought food at the cafeteria.Based on those results, how many people out of 1750 visitors to the museum would be expected to buy food for the cafeteria? NO LINKS!

Answers

Answer:

525 will the answer

Step-by-step explanation:

If the mangos cost $20 per 10. how much did I spend on mangos​

Answers

How many mangos are you buying?

The list shows the numbers of employees in the nine departments at a company.

14, 23, 6, 54, 30, 26, 17, 3, 26

What is the range of the numbers of employees in these departments?
51
18
26
23

Answers

Answer:

51

Step-by-step explanation:

largest number - smallest number

54 - 3 = 51

Answer:

51

step by step

Explanation: The range of a data set is the difference between the largest number in the data and the smallest number in the data set which in this case is 54 - 3 of 51. So the range of this data set is 51.

Please no links I’ll be picking brainiest

Answers

Answer:

y=6x-2.5

Step-by-step explanation:

It goes up by $6and if it is zero miles it is -2.5.

x and y are supplementary angles. y measures 97 What is the measure of x?​

Answers

Answer:

83

Step-by-step explanation:

supplementary angles have sum of 180

Answer: 83

Supplementary angle =180 degree

180-97=83

Michelle and Jay both earn money by melting scrap iron. The amount of iron melted by Michelle, y cubic feet, after x hours is given by the equation y = 17/3x . The graph shows the amount of scrap iron melted by Jay after x hours. Who is spending more time scrapping iron? The picture is down below!
Pls don't put a link or I will report you!

Answers

Answer:

Jay

Step-by-step explanation:

by the graph, after 10 hours, Jay melts 95 ft³

by the equation y = 17/3x, after 10 hours, Michelle melts 0.57 ft³

6>w/-2 solve the inequalities

Answers

Answer:

w>-12

Step-by-step explanation:

6>w/-2 (Given)

6>-w/2 (Rewrite)

12>-w (Multiply both sides by 2)

-12<w (Remember to flip the sign when dividing or mulitplying by a negative)

w>-12 (Rewrite with w in front)

Therefore, w>-12 is the solution to the inequality.

Answer:

w>-12

Step-by-step explanation:

First, you you need to get rid of the -2 in w/-2 by multiplying -2 by both sides like this.

(-2)6>w/-2(-2)

Then you simplify it like this:

-12>w

However, since you multiplied/divided with a negative, you switch the inequality sign like this:

w>-12

And that's the answer!

Please answer plzzzzzzzzzzz

Answers

Answer:

543

Step-by-step explanation:

If this is long division then the answer should be 543

hope this helps!

Six friends went apple picking.
They picked a total of 49 pounds
of apples that they shared equally.
How many pounds of apples did
each one take home?

Answers

8.16 is the answer have a good day

Find the volume of the cylinder. Use 3.14 for π.
Round your answers to the nearest tenth.

Answers

The volume is 621.72

Answer:

V≈565.4

Step-by-step explanation:

V=πr2h=π·32·20≈565.48668

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Answers

Triangle BCD is Isosceles triangle.
Angles C and B are the same and equal 36 degrees. Angle D= 180-(36•2)=180-72=108
Good luck.

Question 1 of 10
Which term describes the red curve in the figure below?
O A. Hyperbola
B. Ellipse
C. Circle
O D. Parabola

Answers

Hyperbola is the answer

The red curve in the figure below is a hyperbola.

What is a hyperbola?

A hyperbola is an open curve with two branches, the intersection of a plane with both halves of a double cone.

If a double-napped cone is sliced by a plane that intersects both naps of the cone, a hyperbola is formed.

The red curve in the figure below is a hyperbola.

Find out more on hyperbola at: https://brainly.com/question/2351925

5). Find the surface area.
3.6 yd
7 yd
3 yd
2 yd

Answers

15.6 . hope this helps

A rectangular prism has a length of 112feet, a width of 212feet, and aheight of 8 inches. What is the volume of the prism in cubic inches?
pls hurry :)

Answers

Answer:

27,353,088 cubic inches

Step-by-step explanation:

How to find the volume of a rectangular prism

To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units.

Solve

In this case, The volume of a rectangular prism with a length of 112feet,

width of 212 feet, and height of 8 inches:

But in this case, we need to convert both the length and width to inches.

If 1ft = 12in

Then, 112ft = 1344in  (Multiply 112 by 12)

Also, 212ft = 2544 (Multiply 212 by 12)

So, the volume = 1344 x 2544 x 8

Calculated out this gives a volume of 27,353,088 cubic inches.

Please answer this quick!!

Answers

51! The flat line is 180°. 95 + 34 = 129. 180 - 129 = 51°

A deck of cards has 52 cards. There
are 4 suits, diamonds, hearts, clubs
and spades. Each suit has 13 cards.
What is the probability that I will
randomly pick a King?

Answers

There are 52 cards in total. 13 of them are spades and 4 of them are two’s. At first hand you might think that there are 13+4=17 cards that can be marked as “spade or two" but counting like that card “spade 2” is counted twice. Repairing this we find that there are exactly 13+4-1=16 cards that can be marked as “spade or two". We call this an application of the principle of inclusion/exclusion.

Then applying the rule that probability equals number of favourable outcomes divided by number of possible outcomes we find that the probability on drawing such card equals:

16/52=4/13.

find the area of a circle whose diameter is 7cm​

Answers

Answer:

3.5pi

Step-by-step explanation:

just multiply together and you'll get your answer

Answer:

38.5 cm^2

Step-by-step explanation:

Diameter ( d ) = 7 cm

Radius ( r ) = 7 / 2 cm

Formula : -

Ar ( circle ) = π r^2

π r^2

= ( 22 / 7 ) x ( 7 / 2 )^2

= ( 22 / 7 ) x ( 49 / 4 )

= 38.5 cm^2

A set of data is normally distributed with a mean of 455 and a standard deviation of 25. What percent of the data is in the interval 405–455?
a.
47.5%
c.
68.3%
b.
49.85%
d.
34.15%

Answers

Answer:

a. 47.5%

Step-by-step explanation:

1. Find the z-score for 405: 405-455/25 = -2

2. Find the z-score for 455: 455-455/25 = 0

3. Using technology or a chart, find the percentage that corresponds with the z-scores: -2 = 0.0228 or 2.28%, AND 0 = 0.5000 or 50%

4. Find the difference between the percentages by subtracting them: 50% - 2.28% = 47.72%

5. Most of the time, the answers aren't exact, so since 47.72% is closest to 47.5%, I would say that's the answer.

Can you help me with this?

Answers

Answer:

1. Obtuse

2. Right

3.Acute

4.Acute

5.Right

6.obtuse( Not sure about this one)

Write an equivalent expression for 6( 4 + 2m) ?

Answers

Answer:

QUESTION:

Write an equivalent expression for 6( 4 + 2m) ?

ANSWER:

6(4+2m) = ?

6 X 4 = 24

6 X 2m = 12m

Final answer:

12m + 24

Step-by-step explanation:

Hope that this helps you out! :)          

If you have any questions please put them in the comment section below this answer.          

Have a great rest of your day/night!          

Please thank me on my profile if this answer has helped you.

How many dominoes will it take to topple over the Empire State Building

Answers

Answer:

29

Step-by-step explanation:

I need step by step answer to my question

Answers

Step-by-step explanation:

what is your questions

Answer:

The answer would be 13.5 pints

Step-by-step explanation:

when you do 2 gallons - 2 pints you get 1.75 gallons

then when you do 1.75 - 1 cup you get 13.5 pints

What value will make the equation true?

Answers

Answer:

-.6

Step-by-step explanation:

-2.1 - x = -1 1/2

Change the fraction to a decimal

-2.1 -x = - 1.5

Add 2.1 to each side

-2.1 -x+2.1 = -1.5 +2.1

-x = .6

Multiply each side by -1

x = -.6

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