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
loris [4]
2 years ago
6

Can someone help me?2x-3y= -1 y=x-1​

Mathematics
1 answer:
MrRissso [65]2 years ago
5 0
X=4 & y=3

Explanation:

Picture
You might be interested in
An office supply store recently sold a black printer ink cartridge for $17.99 and a color printer ink cartridge for $20.99. At t
UNO [17]

Answer:

40 black ink cartridges and 19 colored ink cartridges

Step-by-step explanation:

Let b represent the number of black printer ink cartridges sold. Let c represent the number of color printer ink cartridges sold.

Set up a system of equations:

\displaystyle\\\begin{cases}b+c=59\\17.99b+20.99c=1,118.41\end{cases}

b+c=59\implies b=59-c

Substitute:

\displaystyle\\17.99(59-c)+20.99c=1,118.41\\\implies c=\boxed{19}

\implies b+19=59\implies b=\boxed{40}

⇒ 40 black ink cartridges, 19 colored ink cartridges (ans)

8 0
2 years ago
Solve 4r2 – 9 = 91.<br> A:{±3}<br> B:{±4}<br> C:{±5}<br> D:{±6}
adell [148]

Answer:

b

Step-by-step explanation:

subtratc , find the value of R .

3 0
4 years ago
Match each value to what it represents.
Serhud [2]

Answer:

Step-by-step explanation:

(5^3/2)^-2/3 = 0.2 ⇒ E

(256^0.5)^1.25 = 32 ⇒ C

(81^1/6)^3/2 = 3 ⇒ F

(1024^0.03)^20 = 64 ⇒ D

(1000^4/7)^7/3 = 10,000 ⇒ B

(49^5/2)^0.2 = 7 ⇒ A

Step-by-step explanation:

* Lets explain how to solve the problem

- If we have base x to a power n and all to the power of m then we

multiply the two powers to be one power on the base

- [(x^n)^m] = x^(nm)

* Lets solve the problem

∵

∴ (5^3/2)^-2/3 = 0.2 ⇒ E

∵

∵ 256 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 = 2^8

∴

∴ (256^0.5)^1.25 = 32 ⇒ C

∵

∵ 81 = 3 × 3 × 3 × 3 = 3^4

∴

∴ (81^1/6)^3/2 = 3 ⇒ F (answer F must be 3 not 0.333)

∵

∵ 1024 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 = 2^10

∴

∴ (1024^0.03)^20 = 64 ⇒ D

∵

∵ 1000 = 10 × 10 × 10 = 10³

∴

∴ (1000^4/7)^7/3 = 10,000 ⇒ B

∵

∴ (49^5/2)^0.2 = 7 ⇒ A

5 0
3 years ago
Heres another 56 points for free. Good Luck :)
murzikaleks [220]

Answer:

Thank you

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
ILL MARK YOU AS BRAINLIEST, RATE YOU A 5, AND THANK YOU! 70 POINTS!
nadya68 [22]

Answer:

<h2>290 in²</h2>

Step-by-step explanation:

From the net:

S.A. = 2(25 in²) + 4(60 in²) = 50 in² + 240 in² = 290 in²

From the model:

The formula of a Surface Area of a rectangular prism:

S.A. = 2(lw + lh + wh)

l - length

w - width

h - height

We have l = 5 in, w = 5 in, and h = 12 in. Substitute:

S.A. = 2(5 · 5 + 5 · 12 + 5 · 12) = 2(25 + 60 + 60) = 2(145) = 290 in²

4 0
3 years ago
Read 2 more answers
Other questions:
  • Christina's ice cream parlor sold 60 vanilla cones on the first day of summer. If the goal is to increase the number of vanilla
    11·2 answers
  • Alpha's age is 1 year less than 4 times Beta's age.
    15·1 answer
  • Can someone plz help me with this math equation!
    11·1 answer
  • What is the equivalent fraction of 12/48
    13·1 answer
  • Mark is solving an equation where one side is a quadratic expression and the other side is a linear expression. He sets the expr
    5·1 answer
  • What's the square root 45 round to the nearest thousandth place
    7·1 answer
  • Which equation represents a line that passes through (4, 1/3) and has a slope of 3/4
    12·1 answer
  • What percent of 480 is 160?<br> A. 0.3%<br> B. 3%<br> C. 30%<br> D. 33.3%<br> E. 300%
    9·1 answer
  • Find the base of a triangle if its area is 54 square centimeters and its altitude is 9 centimeters.
    5·2 answers
  • Molly is thinking of a number. twice her number take away seven is the same as her number plus five. what is her number?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!