Mathematics High School

Demi has 21 baseball cards and 13 football cards.
She also has 19 hockey cards and 36 basketball cards.
How many cards does Demi have in all?

HELP

Answers

Answer 1

Answer:

89

Step-by-step explanation:

21+13+19+36=89

Related Questions

14.2cm correct to 1 decimal place

Answers

14.2
The 2 is closer to 0 than 5 so therefore the answer will be 14

Answer:

14.1

Step-by-step explanation:

Simplify the expression:

5(7 − 4n) =

Answers

Answer:

35 - 20n

Step-by-step explanation:

Use destributive property.

5 * 7 = 35

5 * 4n = 20n

35 - 20n

!! Plss help me!! ASAP!! I will give you BRAINLYEST!!!

Look at the circle and student's work below. Please explain what the student did
incorrectly and what the correct answer is.

!!Plss just help me :(

Answers

31.4 cm

Step-by-step explanation:

the radius is 5 so the diameter is 10 so you'll have to multiply 3.14 by 10 not 5

PLEASE HELPPP!! Two balloons, Balloon A and Balloon B, have a total volume of 3/5 gallon. Balloon A has a greater volume than Balloon B. The difference of their volumes is 1/5 gallon. Write and solve a system of equations using elimination to find the volume of each balloon.

Answers

Answer: A= 2/5

B= 1/5

Which of the following is equivalent to this expression?
SELECT ALL THAT APPLY
- (-10k + 20k + })

Answers

Answer:

121

Step-by-step explanation:

Write an improper fraction equivalent to 7 %.​

Answers

Answer:

7/7

Step-by-step explanation:

The fraction 7/7 is considered to be improper by most mathematicians. The definition of a proper fraction is that the numerator is less than the

True or False: The slope between the points (5.-7) and (8, 8) is

Answers

Answer:

The slope between the points (5.-7) and (8, 8) is _____ (what is the number)

Step-by-step explanation:

Answer:

The correct slope is 5

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer/how I got this answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

Can someone help me with this ASAP

Answers

9514 1404 393

Answer:

  x = 45

Step-by-step explanation:

If we assume that ray GJ lies between rays GF and GH, then the angle sum theorem tells us ...

  ∠FGH = ∠FGJ +∠JGH

  140° = 95° +x°

  45° = x° . . . . . . subtract 95° from both sides

  x = 45

_____

Alternate solution

There is an alternate solution if ray GF lies between ray GH and ray GJ.

  ∠JGH = ∠FGJ +∠FGH

  x° = 95° +140°

  x° = 235°

  x = 235

Without some additional information, we cannot tell which assumption we should make about the geometry.

Trey designs a new game for cell phones. The game has 10 levels.
Each level takes 38 seconds to complete. How many total seconds does
it take to complete Trey's game?

Answers

10 * 38 = 380 seconds

Which expressions are equivalent to 1/2+3c+4/5?Check all that apply.

Answers

Answer: A, C and E.

Step-by-step explanation:

The expressions 1/2 + 3c + 4/5 is thesame as writing 3c + 1/2 + 4/5, 1/2 + 4/5 + 3c, 4/5 + 1/2 + 3c, 3c + 1/2 + 4/5.

In all the expressions written above, the only thing that can be seen is just that the position of the numbers were alternated.

Therefore, based on the options given, the answer will be A, C, and E.

Simplify - 40 |+8-23/7

Answers

Answer:

-247/7

Step-by-step explanation:

-40+8-23/7

=-40+(56-23)/7

=-40+33/7

=(-280+33)/7

=-247/7

Use the diagrams to answer the problems,
1.
a) ABC ~ _____

b) set up a proportion to
solue for x.

c) x=
d) BC=
e) scale factors=

Answers

a) DEC

b) 2x - 8

c) x = 2

d) 5



Help me I don’t understand

Answers

Answer:

It is B i think

Fill in the blanks to complete the equation that
describes the diagram.

Answers

Answer:

-1+(-5)=-6

Step-by-step explanation:

This is the answer

Alison's dog is 6 pounds more than five times the weight of gales dog what algebraic equation could you make to find G which is the way to gail's dog.

Answers

Answer:

g = (x - 6) / 5

Step-by-step explanation:

Given:

Let :

Alison's dog = x

Gale's dog = g

x is 6 pounds more than 5 times g

Mathematically,

x = 5g + 6

We can solve for g ;

x - 6 = 5g

Divide both sides by 5

(x - 6) / 5 = g

Why is the point (12, 780) significant on the graph of the functions representing these three salesmen? Use complete sentences to explain your reasoning.

Answers

Answer:

Hope this helps 0>0

Step-by-step explanation:

Let x represent the number of sales each man had.

For Salesman A, he earns $65 per sale; this is 65x.

For Salesman B, he earns $40 per sale; this is 40x.  We also add to this his weekly salary of $300; this gives us 40x+300.

Since their pay was equal, set the two expressions equal:

65x = 40x+300

Subtract 40x from each side:

65x-40x = 40x+300-40x

25x = 300

Divide both sides by 25:

25x/25 = 300/25

x = 12

bakit sinasabing ang tao ay nilikhang "kawangis ng diyos"?​

Answers

Answer:

ito ay upang makilala ang mga natatanging katangian ng kalikasan ng tao na nagpapahintulot sa Diyos na maipakita sa mga tao.

:)


The value of y is directly proportional to the value of x. If y = 36 when x = 140,
what is the value of y when x = 70?

Answers

Answer:

j

Step-by-step explanation:

Please help in maths

Answers

Answer:

[tex](3d^{4})^{2} = 9d^{8}[/tex]

option B is correct

Step-by-step explanation:

Last month, a car dealer sold 50 cars. This month, 60 cars
were sold. Find the percent increase in sales.

Answers

Answer:

t think from 50% to 75% that is my answer

5 1/4 minus 2 5/8 in fraction form HELP!

Answers

Answer: 2.625

Explanation: 5 1/4 - 2 5/8 = 21/8 = 2 5/8 = 2.625

Answer:

I think the awnser to this is 2 5/8

[tex]Write x^{2} -12x+19 in the form (x+a)^{2} +b[/tex]

Answers

Answer:

(x - 6)² - 17

Step-by-step explanation:

Given

x² - 12x + 19

Using the method of completing the square

add/ subtract ( half the coefficient of the x- term )² to x² - 12x

= x² + 2(- 6)x + 36 - 36 + 19

= (x - 6)² - 17

The seventh grade band has 15 drummers and 12 trumpet players. The eighth grade band band has 10 drummers and 8 trumpet players. Do the ratios form a proportion

Answers

Yes 7 has fifty percent more

It took a ball 4 minutes to roll 146 feet. What was this ball's average speed, in feet per second? (round to the nearest hundredth)

Answers

Answer: 36.25 hope it help
the answer is 36.25!!

What is the solution to this system of equations?
{ y = –3x – 2
( 6x + 2y = -4
A (6,2)
B (1,-5)
C No solution
D Infinitely many solutions

Answers

Answer:

C no solutions

Step-by-step explanation:

Correct me if I'm wrong

Please Answer!

Which expression is equivalent to the given expression?


​4(a−3)​=


​ −8a ​

​4a−12​

4a−3

−4(a+3)

Answers

4a-3

because 4(a-3) what’s in () can’t be done so you go to the next step in pemdas and multiply and then you write it out and your done

Answer: The answer is ​​4a−12

PLz help with all of them find the mean

Answers

Answer:

Step-by-step explanation:

The first one has a median of 5, because 5 is the middle number of a set when they are in order of least to greatest, or in this case 0, 1, 2, 3, 4, 5, 6, 6, 7, 7, 9.

The second one is 3, because it is in the middle when it is 0, 2, 3, 3, 3, 4, 6.

The third one is 2, 3, 6, 7, 25 and the median is 6.

The fourth one is is 4, and is already ordered properly.

The last one is 2, and is also ordered properly.

Answer:

Update on

Step-by-step explanation:

shay hit me....

gooo

PLS I REALLY NEED AN AWNSER

Which of the following sets could be the sides of a right triangle? (5,8,12) (2,3, square root of 10) (3,5,square root of 34)​

Answers

addd each pair up, whciver equals 90, is it, I think.

m/4-7=-3 what is the value of m​

Answers

m/4-7= -3

m/4-7+7= -3+7

=> 16

Ans. Value of m is 16.

Hope this helps!

Answer:

Answer is 1 because it -3+7/4=1

5 weeks = how many days???

Answers

Answer: 35 days

Step-by-step explanation:

Answer:

35 days

Step-by-step explanation:

7 days in 1 week

35 days in 5 weeks

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