Mathematics High School

What is the solution to the system of equations?

3x − 6y = −12
−x + 2y = 8

Answers

Answer 1
3x-6y=-12 the answer is -4+2y but u didn’t say solve for what so I solved for x
-x+2y=8 the answer is y= 4+x/2 but u didn’t say solve for what so I solve for y this time

Related Questions

I NEED HELP I WILL GIVE BRAINLIEST

Answers

Answer: 36

Step-by-step explanation:

were my brainliest

HELP PLZ THIS IS 40% OF MY GRADE

Answers

Answer:6

Step-by-step explanation:

What is another way to express this problem

Answers

Answer:

It would be 16(3+2)

Step-by-step explanation:

Because, 16 times 3 is 48, Then 16 times 2 is 32. You add them then you get 80, which is the same answer as the original problem

Linda goes out with her friends. If the bill is 38.50 and they want to leave a 20% tip, how much should the tip be?

Answers

Answer:

7.70

Step-by-step explanation:

100%-> 38.50

20% ->7.70

Add.
10.452 + 6.3
Enter the exact sum

Answers

16.752 is the sum to this

Answer:

10.452+6.3

=10.452+6.3

=16.752

Step-by-step explanation:

The Hokies family spends 600$ Per month on groceries for their family if this is 15% of their monthly budget then what is their monthly budget

Answers

Answer:

4000

Step-by-step explanation:

15%-> 600

100%-> 4000

Evaluate f(x) = 5x – 8 when 8 when I = -3.0, and 4.​

Answers

Answer:

f(3)=3

Step-by-step explanation:

Plugin 3 for x, and simplify

f(x) =5(x)−12

f(3) =5(3)−12

=15−12

f(3)=3

Mrs. Lynch has noted that 7 out of every 10 pieces of mail she gets are junk mail. What percent of her mail is junk?

Answers

i think it would be 70% of her mail

Answer:

70%

Step-by-step explanation:

Any thing out of ten would be any ten out of a hundred. Just move the decimal back two places and you get 70%

MATH HELP!! ASAP!!! MARKING BRIAINLIEST!!

Answers

Answer:

18 meters.

Step-by-step explanation:

The ratio is 1cm:2m, so for every centimeter, you multiply it by 2 and convert it to meters. So, 9 cm time 2 equals 18 and then add meters, so 18 meters.

(hope this helps :P)

The length of a garden is 23m, correct to the nearest metre.

Write down the least possible length of the garden.

Answers

Answer:

22.5m

Step-by-step explanation:

Since it's correct to the nearest metre, it has an interval of ± 0.5

Using rounding concepts, it is found that the least possible length of the garden is of 22.5m.

------------------

If the first decimal digit is between 0 and 4, rounding to the nearest integer, the integer part remains the same.If the first decimal digit is between 5 and 9, rounding to the nearest integer, one is added to the integer part.Thus, in the context of this problem, garden lengths between 22.5 and 23.4 are rounded to 23m, and thus, the least possible length of the garden is 22.5m.

A similar problem is given at https://brainly.com/question/13241511

Evaluate: ¼ (6² +3 x 4)+| - 7|

Answers

Answer should be 19 :)

Which set of ordered pairs does not represent a function?
A.{(-3,7), (-6, -6),(-2, -9), (-2,9)}
B. {(7,-5), (-9,-5),(-4,-8), (-2,-4)}
C. {(-8,-5), (0,–2),(-3, -2), (4,5)}
D.{(8,8), (7,9), (-3, -8),(4, -8)}

Answers

Answer:

a.

Step-by-step explanation:

Write the numerical expression in words.
(10-1) divided by 3
10+(5-3)
(7+3)x5

Answers

Step-by-step explanation:

ten minus one divided by three

ten plus five minus three

seven plus three times five

Suppose a calculator manufacturer has the total cost function
C(x) = 22x + 6600
and the total revenue function
R(x) = 66x.
(a) What is the equation of the profit function P(x) for the calculator?
P(x) = _________


(b) What is the profit on 2800 units?
P(2800) = $________

Answers

Answer:

a) P(x) = R(x) - C(x)

P(x) = 66x - 22x - 6600 =

         44x - 6600

b) P(2800) = 44(2800) - 6600 =

                   $116600

Which expression is equivalent to 210d 2 − 63d ?

Answers

Answer:

Step-by-step explanation:

21d(10d+3(

The expression which is equivalent to 210d² − 63d is; 21d(10d- 3).

Factorization of Expressions

From the given expression;

210d² − 63d

A factor which is common to both terms of the expression is; 21d.

On this note, the factorisation of the expression yields;

21d(10d- 3).

Read more on factorisation;

https://brainly.com/question/25829061

1,128= 6(x+18) please answers
i
need

Answers

Answer:

56

Step-by-step explanation:

Answer:

=6876

Step-by-step explanation:

6(1128+18)

2/p + 3 p = 3/5. plz answer quick

Answers

Answer:

Not possible

Step-by-step explanation:

2/p + 3p=3/5 is impossible because p can't equal the same thing.

1. Determine the area of the rectangle below.
73 m
15 m
Formula:
Plug in Values:
Area:

Answers

Answer:

73 M

Step-by-step explanation:

because you do the sides by times AND ITS 73m

A and B are two similar shapes the area of shape A is 200cm2 calculate the area of shape B

Answers

Answer:

Area of shape B = 312.5 cm²

Step-by-step explanation:

Ratio of Area of A : Area of B = 12² : 15²

Given that area of A is 200 cm², let the area of shape B = x

Therefore:

200:x = 12²:15²

200/x = 144/225

Cross multiply

144x = 200*225

144x = 45,000

x = 45,000/144

x = 312.5 cm²

Area of shape B = 312.5 cm²

Can someone Please answer some of these questions Please ASAP Thank you:)) (20 points)

Answers

Answer:

for #1 it's 1, 4, 5, 6

for #2 it's both lines have the same slope

for #3 it's both lines have a different y-intercept

Step-by-step explanation:

#1 explanation: all of them have the y-intercept of -8

ex. y = 3x (- 8) y = 5x (-8) y = 2x (-8) y = (1/3)x (-8)

#2 explanation: both have a slope of (1/4)

#3 explanation: y = (1/4)x there is not y-intercept that we know of and y = (1/4)x - 5 the y-intercept is at -5 therefore the y-intercepts are different

find the lenght of side a will give crown

Answers

Answer:

D) 4

Step-by-step explanation:

Pythagorean theorem,

base² + altitude² = hypotenuse²

3² + altitude²   = 5²

9 + altitude²   = 25

      altitude²  = 25 - 9

     altitude²    = 16

altitude = √16 = 4

Suzane can work 10 math problems in 15 minutes. How many can she work in an hour and a half? help

Answers

Answer:

60 math problems

Step-by-step explanation:

15 minutes fits into an hour and a half (90 minutes) 6 times

So we simply multiply what she can do in 15 minutes (10 math problems) by 6

10 x 6 = 60

So Suzanne can do 60 math problems in an hour and a half

I Need Help Finding The Equivalent Expression.​

Answers

Answer:

9y+45

Step-by-step explanation:

just multiply 9 by (y+5) that's what it means when it's right next to the parentheses without a sign in the middle.

Answer:

9y + 45

Step-by-step explanation:

9 multiplied by y is 9y

9 multiplied by 5 is 45

we cant add 9y and 45 because 9 has a y next to it but 45 does not.

I hope this helped! :)

The top of a coffee table is in the shape of a rectangle,
The length of the top of the coffee table is 3.5 feet and
the area is 105 square feet. What is the width of the top
of the coffee table

Answers

Answer:You would need to do 10.5/3.5. This equals 3ft

Step-by-step explanation:

105/ 3.5 because area is length tiles width to find the width just do the opposite. The answer would be 30.

PLZ HELP ME WITH THIS QUESTION!

Answers

C. Multiply by 3

Explanation

A box contains 4 bags of sugar. the total mass of all 4 bags is 6 kg what is the mass of each bag in grams ​

Answers

Answer:

Divide by 4 to get the mass of a single bag and then multiply by 1000 to get to grams from kilograms

Step-by-step explanation:

6/4=1.5

1.5*1000=1500

So, in total a bag of sugar would cost 1500

It’s simple, really- the answer is 1500g or 1.5kg.

All you have to do is divide 4 by six to get the mass of each separate bag.

4/6= 1.5kg

Or 1500g

Hope this helps

Pls help (have a good day Jesus loves you )

Answers

512 and god bless u too

Answer:

512

its definitely not 6561

Please help me! (Tangent Ratios) (20 points)

Answers

Answer:

Tan A for first page  25/49  

Tan A for second page 37/49

Tan B for first page 24/49

Tan B for second page 12/49

NEED HELP ASAP!!! 50 POINTS!!! WILL MARK BRAINLIEST
2. The following triangle, ∆, has angle measures as shown.
Step 1: What is the measure of angle C? Show your work.
Step 2: What is the value of x? Show your work.

Answers

Answer:

x=29. Angle C= 93

Step-by-step explanation:

3(x+2)= 3x+6.

3x+6+52+35= 3x+93.

180-93=87.

87/3= 29. So that means x=29.

for proof you can do 3(29)+93 and you'll get 180.

For angle C; 3(29+2)= 3x31. 31x3= 93.  

Angle C= 93 degrees.

what is the area of the shaded part? ​

Answers

Answer:

Step-by-step explanation:

(8x-3)^2-x^2

64x^2-48x+9-x^2

63x^2-48x+9

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