Mathematics High School

Solve using graphing substitution or elimination in the picture

Solve Using Graphing Substitution Or Elimination In The Picture

Answers

Answer 1

Answer:

1) 18 quarters and 30 nickels2) 8 quarters and 12 nickels

Step-by-step explanation:

1) Let quarters be x and nickels be y.

Equations based on given, 48 coins, total of $6 = 600c:

x + y = 4825x + 5y = 600

Substitute y in the second equation, y = 48 - x

25x + 5(48 - x) = 60025x + 240 - 5x = 60020x = 360x = 18

Then value of y is:

y = 48 - 18 = 30

2) Similarly to problem 1.

x + y = 2025x + 5y = 260

Substitution: y= 20 - x

25x + 5(20 - x) = 26025x + 100 - 5x = 26020x = 160x = 8

Then finding y:

y = 20 - 8 = 12

Related Questions

what is angle 1,2,3,4,5,6,7

Answers

1 is 51, 2 is 34, 3 is 95, 4 is 38, 5 is 47, 6 is 74, 7 is 59. If it says to put u it’s they’re all in degrees


I need help asap
Less then 5 minutes

Answers

Answer:

um well he would be well rested so he would score higher than others but I'm not sure on the exact number maybe around 90-100

Alamo Cola manufactures a soft drink made with 2.5% peach juice concentrate. What is this percent expressed as a fraction and decimal?

A) 1/4 and 0.025

B) 1/4 and 0.0025

C) 1/40 and 0.025

D) 1/400 and 0.0025

Answers

i don't know sorry if its wrong please correct me, it looks like c

(0,0)
M is the midpoint of CD. If the midpoint M
is (-3, 5) and C is (2,3), then what are the
coordinates of D?
O
(-1/2,4)
(-8,7)
o
(-4,1)

Answers

Answer:

The answer is (3-,5) watch is C cause if you do that but in math form it's the same

Please help ASAP !!
Please help ASAP !!
Please help ASAP !!

Answers

just multiply!!!!!!!!!!!!!

Answer:

7/50

Step-by-step explanation:

That is the simpliest fraction. Hope dis helps

Please help me out!!

Answers

Answer:

D.  9(3.1416)

Step-by-step explanation:

I need help. Please answer if u do know

Answers

Answer:

i think is (-3,2) because it look like in negative and posted

What is the least common denominator of 11/6 and 9/10?

Answers

Answer:

The least common denominator is 30

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

the least common multiple ( L.C.M ) of 6 and 10 = 30

Can someone help me on this real quick PLZZZZZZZZZZZzz

Answers

Step-by-step explanation:

1)On the table for Yards put 3 and 5. Then put Feet as 6, 12 and 18.

2)On 2 put [tex]\frac{6}{2} \frac{9}{3} \frac{12}{4} \frac{15}{5}[/tex]

Each ratio is equal to 3:1

3)The equation that describes the relationship is x:y

4)The equation that describes the relationship is 3:50

Solve for a 1/2 a-9=11

Answers

Answer:

a=31

Step-by-step explanation:

1/2(a-9)=11

a-9=22

a=22+9

a=31

If the cost of a barrel of oil is $50.00, how much is the cost of one gallon of that oil? (One barrel of fuel oil contains 42 gallons.)

Answers

$1.19 gotta make answer longer

Answer:

$1.20

Step-by-step explanation:

Write the verbal phrase as a algebraic expression
three times the sum of a number and 1

Answers

3 (n + 1) (expression)

3n + 3 (expression simplified)

In the expression 2a-5+4a-9, name the constants​

Answers

Answer:

-5 and -9 are the constants, can also be written -14

Which statement is not always true for a parallelogram?

Answers

Answer:

b

Step-by-step explanation:

Answer:

Diagonals are congruent drop a like if you got it right

Step-by-step explanation:

Which inequality represents all values of x for which the product below is
defined?
please help very confused

Answers

Answer:

 C.  x ≥ 5

Step-by-step explanation:

You must meet both conditions:

 (x -5) ≥ 0 and (x +2) ≥ 0

For the first condition, ...

 x ≥ 5 . . . . add 5 to both sides

For the second condition ...

 x ≥ -2 . . . . subtract 2 from both sides.

Since both conditions must be met, we must have ...

 x ≥ 5

i hope this helps :)

What is the probability when Sue will randomly select from a treat bag containing 6
lollipops and 4 gum balls. Sue will select a treat, NOT REPLACE it, and then select a
second treat. Sue will select a gumball then a lollipop.

Answers

Answer:

6/25

Step-by-step explanation:

Which choices are equivalent to the expression?

Answers

You already have the correct answer. B

Pl help me I will give Brainly

Answers

Answer:

Both gyms charge the same after 2 months and LA fitness has a greater initial fee.

Expand the linear expression 4(10x - 4).
40x - 16
40x + 16
40x - 4
10x - 16

Answers

Answer:

the correct answer is 40x-16

Step-by-step explanation:

here,

=4(10x-4)

=40x-16

Help please!

These are Edward's calculations for his net worth: Net Worth = $400 - $500 = -$100. What does the negative net worth mean?

A)His liabilities are greater than his assets
B) His assets and liabilities are the same
C) His assets are greater than his liabilities
D) His assets and liabilities do not affect each other.
​

Answers

Answer:

A. His liabilities are greater than his assets.

Step-by-step explanation:

I need help on this problem!

Answers

Answer:

Blank 1: 1

Blank 2: -19

Blank 3: 4

Blank 4: 96

Step-by-step explanation:

-1+4=3

3/3=1

3(-5)-4=-19

8+4=12

12/3=4

3(100)-4=96

Answer
A 15
B 100
C 120
D 148

Answers

120 bc all u have to do was find the area

Answer:

120

Step-by-step explanation:

6*5*4=120 and boom that’s your answer

The sum of the reciprocals of two consecutive integers is 9/20
. Find the two integers.

Answers

Answer:

4,5

Step-by-step explanation:

The LCM of 4 and 5 is 20, and their sum is 9, so 1/4+1/5 = 9/20.

brainliest pls :)

What is the exponential form of the expanded form below? 10.10.10.10.10. A 5.10 B 5)10 C 10)1. D 10)5 ​

Answers

Answer:

the answer is D

Step-by-step explanation:

Answer: D AKA (10*5)

Step-by-step explanation:

I took the test on edge 2020 and it was correct!! and 10 5 times would make more sense being D which is 10*5

STAY SAFE :)

What is the equation of the line

Answers

it’s either y = 0 or x = 0, i believe it’s x= 0 but it could be the other

Answer:

x=-9

Step-by-step explanation:

How many 2/3 -cup servings are in 6 cups of cereal?

Answers

6/(2/3) = 6*(3/2), 6*3= 18, 18/2=9 servings

Answer:

Nine.

Step-by-step explanation:

The length of a room is 4 feet less than twice its width. The perimeter of the room is 58 feet. What is the length of the room?

Answers

Answer:

Length = 18

Step-by-step explanation:

Length= 2w - 4

Perimeter= 58

Perimeter= 2L + 2w

58 = 2(2w-4) + 2w

58 = 4w -8 + 2w

58 = 6w - 8

66 = 6w

11 = w

Plug in width to find the variable L

58 = 2L + 2(11)

58 = 2L + 22

36 = 2L

18 = L

Use your trendline to find the temperature of your Spaghettios after 40 minutes. Is this an example of interpolation or extrapolation?

NEED HELP ASAP WITH SHOWN WORK!!!!!!!!!!!!

Answers

Answer:

in 40 minutes, 15 degrees Farenheit  will be e

Step-by-step explanation:

convert 16 into binary

Answers

convert 16 into binary number is 0b10000

A city has a vacant lot in the shape of an isosceles trapezoid and the city workers are installing a fence around the lot. What length of fencing is required? Round the answer to the nearest meter. А 25 m B x 25 m 45° The length of fencing required is meters.​

Answers

Answer:

Length of the fence required = 135 m

Step-by-step explanation:

Total length of the fence required to cover the vacant lot = Perimeter of the isosceles trapezoid

Perimeter of ABCD = AB + BC + CD + AD

Since, AB = BC = EF = ED = 25 m

From the given right triangle BEC,

m∠EBC = m∠ECB = 45°

ΔBEC will be an isosceles triangle.

So, BE = EC

By Pythagoras theorem,

BC² = BE² + EC²

25² = 2(EC)²

EC = [tex]\frac{25}{\sqrt{2}} =17.7[/tex] m

And DC = (DF + EF + EC)

             = EC + EF + EC [Since, DF = EC]

             = 2EC + EF

             = 35.4 + 25

             = 60.4 m                            

Hence. perimeter of ABCD = 25 + 25 + 60.4 + 25

                                              = 135.4 m

                                              ≈ 135 m

Therefore, length of the fence required = 132 m

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