Mathematics High School

Solve for equation Y

15x + 10y = 400

Answers

Answer 1

Answer:

15x +10y =400

All divide by 5

3x +2y =80

2y=80 - 3x

y=80-3x/2

Related Questions

Lupe and her friends spent $20 on snack mix and water. They bought x bags of snack mix and y bottles of water. They bought a total of 11 items. How many bags of snack mix did they buy?

Answers

Answer:

6 bags of snack mix

Step-by-step explanation:

x bags of snack mix

y bottles of water

The equations in the question is given as;

20.00 = 2.50x + 1.00y  (i)

11 = x + y (ii)

From eqn (ii);

11 - y = x

substitute the value of x in eqn (i);

20.00 = 2.50(11 - y) + 1.00y

20.00 = 27.5 - 2.50y + 1.00y

20.00  - 27.5  = - 1.50 y

- 7.5 = - 1.50 y

y = - 7.5 / (- 1.5) = 5

Since we are interested in the value of x. Substitute the value of y in eqn (ii);

11 = x + 5

x = 11 - 5 = 6

HELPPPPPPPPPP I WILL GIVE BRAIN THING

Answers

Answer:

1, 8 and -3

Explanation:

x is bigger than or equal to -3. Any positive number is bigger than a negative number.

Hope that helps!!

Answer:

1, 8, -3

or

A, B, D

Step-by-step explanation:

We need to figure out which numbers are greater than or equal to -3

1 is greater than -3

8 is greater than -3

-4 is smaller than -3

-3 is equal to -3

Therefore, the applicable answers in this equation are 1, 8, -3

A cube has a side that
measures 4 inches. What is
the volume of the cube?

Answers

Answer:

4*4*4 = 64, so the volume is 64 inches cubed

Step-by-step explanation:

Given that 2 x − 2 y = 23 Find x when y = 9 Give your answer as an improper fraction in its simplest form

Answers

Answer:

41/2

Step-by-step explanation:

2x - 2(9) = 23

2x - 18 = 23

    +18   +18

2x = 41

/2    /2

x = 41/2

1+ 1092 divided by 63 mulitlpyed by 45 =

Answers

Answer:

780.714

Step-by-step explanation:

Answer:=781

Step-by-step explanation:

i need help plssss also quick if you can-

A scale drawing of a rectangular sign has a scale factor of 1:5. Which statements are true?

The ratio of the area of the scale drawing to the area of the sign is 1:10.

The ratio of the area of the scale drawing to the area of the sign is 1:25.

The ratio of the perimeter of the scale drawing to the perimeter of the sign is 1:5.

The ratio of the perimeter of the scale drawing to the perimeter of the sign is 1:10.
____________________________________________________________________

i'll also give brainliest-

Answers

Answer:

1:5 so C!!!!!!

:)(:

Answer:

C, The ratio of the perimeter of the scale drawing to the perimeter of the sign is 1:5.

Step-by-step explanation:

A scale drawing of a rectangular sign has a scale factor of 1:5. Which statements are true?

We know that having the sign of 1:5, is 1:5 because you can think that a the perimeter is 1:5.

The smallest number works the best too.

A triangular pane of glass has a height of 42 inches and an area of 546 square inches. What is the length of the base of the pane?

Answers

Answer:

Base = 26 in

Step-by-step explanation:

Recall the formula for the area of a triangle as:

Area = (Base x Height) / 2

In our case, this formula converts into:

546 in^2 = Base x 42 in /2

multiply both sides by 2 to get rid of fractions:

1092 in^2 = Base x 42 in

divide both sides by "42 in" to isolate the Base completely

1092 in^2 / 42 in = Base

Therefore Base = 26 in

Need help!! don't know what I'm doing

Answers

Answer: 4 squared + 2 squared is the least, 5 squared is in the middle, 6 squared - 6 is the greatest

Step-by-step explanation:

least in total=20

middle in total=25

greatest in total=30

Step-by-step explanation:

Here,

1st expression:

[tex] {6}^{2} - 6 = 36 - 6 = 30[/tex]

2nd expression:

[tex] {4}^{2} + {2}^{2} = 16 + 4 = 20[/tex]

3rd expression:

[tex] {5}^{2} = 25[/tex]

Hence, the order from least to greatest is,

20 < 25 < 30

Also,

[tex]( {4}^{2} + {2}^{2} ) < {5}^{2} < ( {6}^{2} - 6) \: \: (ans)[/tex]


Will give brandy list

Answers

the Answer is A.20 because 90+70 is 160 and you need 20 more to make it 180

Caroline delivers flowers and earns $1.25 for each rose and $0.75 for each daisy. What is her total pay for a week in which she sold 288 roses and 432 daisies?

Answers

Answer:

She will be paid $684

Help hurry !!!!!!! I need help

Answers

Answer:

it's is the last one 1 out of 6

A TV has a listed price of $820.99 before tax. If the sales tax rate is 9.75 , find the total cost of the TV with sales tax included

Answers

Answer:

901.04 dollars

Step-by-step explanation:

820.99 times .0975 = 80.05

80.05 + 820.99 = 901.04

HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP

Two numbers have a sum of 76 and a difference of 8. What is the larger number?

A. 34
B. 46
C. 68
D. 42

Answers

Answer:

46,42

( I hope this was helpful) >;D

Express the rate as a unit rate.

6 miles in 2 hours

Answers

Answer:

8.73 mph

Step-by-step explanation:

What does slope represent

Answers

Step-by-step explanation:

The slope and y-intercept values indicate characteristics of the relationship between the two variables x and y. The slope indicates the rate of change in y per unit change in x.

Identify the slope and explain

Answers

it looks to be about y=1.5/6x+6
Y=1.5/6x +6 is the correct answer

10
After a power failure, the temperature of a freezer rises 7 degrees to -31 degrees. What was the
original temperature of the freezer?
-38 degrees
-24 degrees
38 degrees
I don't know

Answers

38 degrees

because i’m apart like that

How far apart are points B and F?

Answers

i don't know bestie you didn't exactly give us an example :o

Answer:

Points B and F are as far apart as how far apart they are.

Step-by-step explanation:

Will give Brainliest

Answers

Answer:

c

Step-by-step explanation:

its literally just 4 - 2

C, it’s 4-2. Hope this helped even though someone answered allready :)

Help me pls pls pls

Answers

Answer:

Its 68

Step-by-step explanation:

Sum of all the angles is 180

63+49+w = 180

112+w=180

w=180-112

w=68

NEED ASAP!!!

Find the area of the composite figure.

Answers

Answer:200 I think

Step-by-step explanation:

The person above is correct the answer is 200

The Parent-Teacher Association (PTA) wants to find out
how much students pay for school supplies at the
beginning of the school year, so it conducts a survey at
certain local stores. PTA members visit these stores to
find the prices of the items on the students' supply lists.
What is the sample in this study?
A. The prices of listed items at the selected stores
B. The prices of pencils at the selected stores
C. The prices of listed items at all local stores
D. The prices of listed items at one store

Answers

The sample is A because the stores conduct prices not students.

Mike spent $80.50 on 5 videos. If each video cost the same amount, how much did one video
cost?

Answers

Answer:

$16.10

Step-by-step explanation:

All you have to do is do 80.50/5 since if they all cost the same amount, and since there are 5. Anyway 80.50/5 is 16.1, or $16.10.

what is 323 dived by 48?

Answers

323/48=6.73

Hope this helps!!

please help me it's urgent

If

p  10

, find the value of

2

p p   2 100.​

Answers

Step-by-step explanation:

p

2

−2p−100=(−10)

2

−2(−10)−100 [Putting p=−10]

=100+20−100=20.

ᴍᴀʀᴋ ᴀꜱ ʙʀᴀɪɴʟɪᴇᴀꜱᴛ

Erin completes 11 transactions in his bank account. In 6 transactions, he withdraws $10 each time. in 5 transactions, he deposits $20 each time. Find the total net change in dollars. ​

Answers

Answer:

The answer is 30

Please give me Brainliest it would mean a lot

158.297 rounded each number to the nearest while number

Answers

Answer: 158

Step-by-step explanation:

158.297

It rounds to 158

since 0.297 < 0.5

Can someone help me please

Find the sum of -7m and 5m + 2

Answers

Answer:

0

Step-by-step explanation:

Answer:

0

Step-by-step explanation:

pls type the correct question

Steve connected a wire extension that is ⅜ foot long to another wire that is ½ foot long. How long is the wire with the extension?

Answers

3/8+1/2 = 3/8+4/8 = 7/8 ft

What is 20% of 50?hsjshshshshhsjsjs

Answers

Answer:

the answer you are looking for is 10.

Step-by-step explanation:

10

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