1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MissTica
3 years ago
12

HELP ME PLEASE PLEASE

Mathematics
1 answer:
Ymorist [56]3 years ago
6 0

Answer:

The value of x is 7 and y is 14.

Step-by-step explanation:

The steps are :

- 3x + y =  - 7 -  -  - (1)

y = x + 7 -  -  - (2)

(2)→(1)

- 3x + (x + 7) =  - 7 \\  - 3x + x + 7 =  - 7 \\  - 2x =  - 14 \\ x = 7

substitute \: x = 7 \:  \: into \:  \: (2)

y = 7 + 7 \\ y = 14

You might be interested in
Hello need help with this thanks!
lina2011 [118]
The answer is 28
work shown in picture below
8 0
2 years ago
Subtract: ( - 2x4 - 4y + 4z² +6) - (-9x4 – 3y + 4z? +9) 0 - 7x² + y + 3 0 - 11x4 - 7 - 3​
Vinil7 [7]

Answer:  

36x-3y+4z^2+26-7x^2

Step-by-step explanation:

Okay well for starters, you can't subtract that because it's an expression, not an equation. And secondly, there was '?' which I'm going to assue=me was a typing error.

Now to actually simplify this mess of an expression, you just need to combine the like-terms! Once you do that you really can't do anything else, since you don't know the varibles.

5 0
2 years ago
Tammy made a 6-ounce milkshake. Two-thirds of the milkshake was ice cream. How many ounces of ice cream did
Alchen [17]

Answer: 4 ounces

Step-by-step explanation:

6 * (2/3) = 12/3 = 4 ounces

5 0
3 years ago
9. A box of cereal is packaged and sold at a local
emmasim [6.3K]

Answer:

288 Cubic Inches

Step-by-step explanation:

Assuming the cereal takes up 80% of the total volume of the box, you would take 80% of the total volume.

First, do Base x Width x Height for the volume of the box.

10 inches x 3 inches x 1 foot      (1 foot is 12 inches)

10 x 3 x 12 = 360

Now, take 80% of 360 cubic inches.

80% is 0.8 times a number

0.8 x 360 = 288

288 Cubic Inches

8 0
2 years ago
Jerry has been learning to multiply decimals by Integers.
Bogdan [553]

Answer:

Yes

Step-by-step explanation:

Multiplying an integer by 0.01 is the same as Dividing such as :

0.01 = 10^-2

100= 10

For instance :

A number, n = 5 is multiplied by 10^-2

5 * 0.01 = 0.05

Thus, divide the number, n by 100;

5 / 100 = 0.05

Hence, the proof.

7 0
2 years ago
Other questions:
  • Raul has 50 coupon books to sell. he must sell at least 10 coupon books to win a prize. the amount of money raul makes from sell
    7·1 answer
  • Can a rational number be a irrational number
    13·1 answer
  • How long is the storage unit<br><br><br> This is Pythagorean theorem
    9·1 answer
  • How many 4 minutes and 30 seconds in 2 hours
    7·2 answers
  • Start time 11:00 am elapsed time is 4 hours and 5 minutes what time does it end
    8·2 answers
  • Consider the arithmetic sequence 3,8,13,18 find S15
    5·1 answer
  • What’s the equation
    6·1 answer
  • PLz hep me with this qustion
    5·2 answers
  • What is the soution of (Image below)
    11·1 answer
  • Hello I need help with this math it’s negative fractions so -7 1/5 - (-2/5)
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!