Mathematics High School

Solve for the unknown number in the equation 478 + ________ = 457 + 77.

a 50
b 53
c 56
d 59

Answers

Answer 1

Answer:

56

Step-by-step explanation:

457+77

=534-478

= 56

Related Questions

A triangle has side lengths of 13, 15 and 25. Find the measure of the angle to the nearest whole degree that is across from the longest side. So find < L ?

Answers

Answer:

Answer in photo

Step-by-step explanation:

Question 1
1. You must build a ramp with a rise of 15 inches to roll
some lab equipment into your school. If you follow the
ADA specifications, what is the horizontal length (the "run")
of the shortest ramp you can build? What is the ramp's
total length?

Answers

Could you explain better so I could understand

c-u-m definim cercul? cand spunem ca doua cercuri sunt egale? c-u-m definim coarda in cerc? Dar diametrul c-u-m il definim?
Acestea sunt intrebari la geometrie

Answers

C-u-m in my b-a-l-last

Can someone do this please

Answers

ok so umm you need to do 5x4= 20 and divide 20 and 4 you get 5 and multiply 5x4 you get 20 and the answer is 20

There are 35 students in the drama club. 2 out of every 5 students in the club are boys.
How many students in the club are boys?

Answers

Answer: In the drama club there’s 14 boys

Step-by-step explanation:

35/5=7

7*2=14 boys

Answer:

14

Step-by-step explanation:

35 divided by 5=7

7times 2 =14

Write the equation in standard form ax + by = 0
y=2x+5

Answers

Answer:

2x + 1y = 5

Step-by-step explanation:

You don't need to type the 1 because all ones are invisible in algebra.

Solve the proportion 20 over three equals ? / 6

Answers

20/3 should equal 6 2/3
This is worded kind of weird but I think it would be 40/6 because to get from 3 to 6 you multiply by 2 so you do the same to the top to get

40/6

HELP
Which equations have exactly one y-value for any given x-value? Select all that apply.

Answers

Answer:

I believe its A. y=-x C and D.

Please correct If I am wrong Please and thank you

Step-by-step explanation:

Solve the following inequality.
7(6 - 4n) + 4n > 138

Answers

Answer:

n <−4

42 - 28n + 4n >138

42 - 24n >138

-24n > 138 - 42

-24n >96

n <−96/24

N <−4

Graph the line x+2y=12 on the axes provided.

Answers

Answer: x=2y=12

Step-by-step explanation:

Answer:

Step-by-step explanation:

Convert the equation into mx+b format.

y=-1/2x + 6

Then, graph the line using the slope and y-intercept.

Help please...............

Answers

Answer is D

Because 0.36-0.26 is 0.1 and so is 0.26-0.16 and so on.

Solve- x/2 + 1=5

A)8
B)9
C) 11
D) 2

Answers

Answer:

A. 8

Step-by-step explanation:

Answer:

A/8

Step-by-step explanation:

Since you need to get x by itself you have to subtract the one on both sides. Then the equation is x/2=4 Since x is being divided by the 2 you have to multiply by two on both sides. That  leaves you with x=8

Given f(x) = 17(3+x) what is the value of f(-2)

Answers

Answer:

Step-by-step explanation:

f ( x ) = 17 ( 3 + x )

f ( -2 ) = 17 ( 3 + -2 )

f ( -2 ) = 51 + -34

f ( -2 ) = 17

= 17


What is the value of 10(4-7)/-(4-1)?
0-10
O 6
O 6
O 10

Answers

Answer:

10

Step-by-step explanation:

What is the decrease percentage of 62 to 31

Answers

Answer:

50%

Step-by-step explanation:

Answer: 50%

Step-by-step explanation:

31 is half of 62, so it was a 50% decrease.

Helpp mee please It says Find base and height on a triangle?​

Answers

Answer:

just mesuere it

Step-by-step explanation:

do it mesure it

Can someone help me pls

Answers

Answer:

1) rational

2) Irrational

3)rational

4) irrational

5) rational

Step-by-step explanation:

If it has a whole number answer and doesn't have never ending number its rational

A ratio that compares a number to 100 is a(n) ?

percent

estimate

round

approximation

Answers

the answer is an percent

. The table lists the number of students from Windy Brook Middle School at the state fair. What is the ratio of sixth graders to the total number of students at the fair?

Answers

Answer:im so sorry these people wasted your time hun Answer:

2 : 9

Step-by-step explanation:

First find the total number

6+4+5+3 = 18

6th graders : total

4 : 18

Divide each side by 2

4/2: 18/2

2 : 9

there ya go!

lan has 30 star stickers to share. she gives 4 stickers to each of her and has 2 stickers.
how many friends does lan have.

Answers

7
30/4 =7.5 so the answer is 7

Answer:

7

Step-by-step explanation:

this can be written as an equation, which is 4x+2= 30

X = the number of friends

30= the total of stickers

4= the stickers each friend gets

2= the amount lan gets.

Now solve the equation, first subtract 2 on both sides, which is 28

4x=28 now divide both sides by 4, which will give you 7

x= 7, that means that answer is 7

can someone plz help me! plz i also added some more points plz help

Answers

Answer:

15x + 12(10 - x) = 1417 and 3

Step-by-step explanation:

The number of people who have two-course meal is (10 - x)

Correct equation is:

15x + 12(10 - x) = 141

Solving for x:

15x + 120 - 12x = 1413x = 141 - 1203x = 21x = 7

Answer:

Number who have three-course meal = 7Number who have two-course meal = 3

Answers:

1) 15x + 12(10 - x) = 141

2) 7 and 3

15x + 12(10 - x) = 141

15x + 120 - 12x = 141

3x = 141 - 120

3x = 21

x = 7

Keegan and Annie are working on an experiment in the
science lab. Their mixture contains ingredients that weigh
5.12 grams, 4.7 grams, and 7.32 grams. Keegan calculates
the combined weight to be 17.14 grams; Annie calculates
it to be 12.91 grams.
Who is correct, and why?
5.12
4.70
Keegan
+7.32
17.14
5.12
4.7
Annie
+7.32
12.91
O A. Keegan is correct. Annie did not regroup properly,
O B. Annie is correct. Keegan did not line up the decimals correctly.
C. Keegan is correct. Annie did not line up the decimals correctly.
D. Annie is correct. Keegan did not regroup properly.

Answers

Answer:

me name mort am swag

Step-by-step explanation: me my mom. she say help the noob. am no help you. doodoo pants.

Graph the line with the equation y = -5x + 2.

Answers

This will generate a line quickly dropping from left to right, with an x-intercept of 0.4 and a y-intercept of 2.

See the attached image for the actual graph.

Enter the equation of the line in slope-intercept form. Enter the answer in fraction form.

The line perpendicular to y =
6
5
x + 2 that passes through (6, −2).

The equation of the line that passes through (6, −2) is y = .

Answers

Answer:

11/2??????

Step-by-step explanation:

Henry sells rings for $8 each. His expenses are $2.00 per ring, plus$90 for supplies. How many rings does he need to sell for his revenue to equal his expenses?

Answers

Answer:

12

Step-by-step explanation:

Answer:

yooooo lamarr over here cheating

Step-by-step explanation:

im stressing and im losing points. i need help please

Answers

Answer:

I think it is X or Y. I might be wrong.

Answer:

∠Y = 85°  , side XZ

Step-by-step explanation:

180 = 5x - 1 + 8x + 5 + 4x + 6

180 + 1 - 5 - 6 = 5x + 8x + 4x

170 = 17x

x = 170 / 17

x = 10

∠X = 5(10) - 1 = 49°

∠Y = 8(10) + 5 = 85°

∠Z = 4(10) + 6 = 46°

therefore, the longest side of a triangle is the opposite site of

∠Y = 85°  , side XZ

What is the Surface area for a rectangular prism that has the measurements of 2, 12, and 6?

Answers

Answer:

216

Step-by-step explanation:

A=2(wl+hl+hw)=2·(12·2+6·2+6·12)=216

Answer: A=216

Step-by-step explanation:

so very sorry if it is not right but, I looked at it and that's what showed up

What two properties of a Cepheid variable star do we need to know in order to calculate the approximate distance from Earth?

(choose two)

1.) luminosity

2.) parallax

3.) color

4.) heat intensity

5.) exact size

6.) apparent magnitude​

Answers

Answer:

4 and 6

Step-by-step explanation:

4. Express each of the following in m/s.
(a) 65 cm/s
(b) 367 km/h
(c) 1000 cm/min (d) 86 km/min​

Answers

[tex]{ \large{ \purple{ \sf{Hello \: there!}}}}[/tex]

As we know that, 1 cm = 0.01 m

So,

(a) 65 cm/s = 0.65 m/s

b) 367 km/h = (367 × 5 ÷ 18) m/s

c) 1000 cm/min = (1000 × 60 ÷ 100) m/s

d) 86 km/min = (86 × 60 ÷ 1000) m/s

[tex] \star \:{ \underline{ \boxed{ \sf{ \blue{Thank \: you : ) }}}}}[/tex]

Hi if anyone gets this pls help i understand but i wanna be sure

Answers

Answer:

A. [tex]8x^{6}[/tex]

Step-by-step explanation:

Answer:

8x6

Step-by-step explanation:

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