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
Sav [38]
3 years ago
8

5x+ 4y = -20 5x + 12y = -10 HELPPPPPP

Mathematics
1 answer:
Serggg [28]3 years ago
4 0

Answer:

We are to find x and y in this equation.

5x+4y= -20.

- 5x+12y= -10.

which is y=5/4 or 1.25.

then substitute y=1.25 into eqtn I.

5x+4(1.25)=-20.

5x+5= -20.

5x=-20-5.

5x= -25.

x= -5.

You might be interested in
WILL UPVOTE!<br> Factor the expression.<br> 4r^2 − 49 =
chubhunter [2.5K]
Would it be
(2r-7)*(2r+7)

?
6 0
3 years ago
Fred flips a coin, spins the spinner, and rolls a standard number cube. Find the probability that the coin will show tails, the
Inessa05 [86]

Answer:

The probability that the coin will show tails, the spinner will land on yellow or green (out of yellow, green, blue), and the cube will show a three is \frac{4}{3}  

Step-by-step explanation:

Given : Fred flips a coin, spins the spinner, and rolls a standard number cube.

To find : The probability that the coin will show tails, the spinner will land on yellow or green (out of yellow, green, blue), and the cube will show a three ?

Solution :

First we find probability one by one,

1) Flips a coin - Head, Tail

Total number of outcome = 2

Favorable outcome (getting a tail) = 1

Probability that the coin will show tails is P(T)=\frac{1}{2}

2) Spins the spinner - yellow, green, blue

Total number of outcome = 3

Favorable outcome (land on yellow or green) = 2

Probability that the spinner will land on yellow or green P(S)=\frac{2}{3}

3) Rolls a standard number cube - 1,2,3,4,5,6

Total number of outcome = 6

Favorable outcome (show a three) = 1

Probability that the cube will show a three P(C)=\frac{1}{6}

The probability that the coin will show tails, the spinner will land on yellow or green (out of yellow, green, blue), and the cube will show a three is

P=P(T)+P(S)+P(C)

P=\frac{1}{2}+\frac{2}{3}+\frac{1}{6}

P=\frac{3+4+1}{6}

P=\frac{8}{6}

P=\frac{4}{3}

Therefore, The probability that the coin will show tails, the spinner will land on yellow or green (out of yellow, green, blue), and the cube will show a three is \frac{4}{3}

5 0
3 years ago
How do you solve 5-x=6?
Fudgin [204]
-x+5-5=6-5, -x=1, x=-1
3 0
3 years ago
A baseball diamond is a square that is 90% on each side. If a player throws the ball from 2" base to home, how
Flura [38]

Answer:

45 ft

Step-by-step explanation:

if each side is 90% and 2nd base is half way you divide 90 by 2

5 0
3 years ago
Which pair of ratios makes a proportion?
Nana76 [90]

Answer:

  • D. 1/4 and 9/36

Step-by-step explanation:

If two ratios make a proportion then it can be shown as:

  • a/b = c/d ⇒ ad = bc

Let's verify the answer choices with this method

A. 1/4 and 5/25

  • 1*25 = 4*5
  • 25 = 20, incorrect, not a proportion

B. 1/4 and 7/24

  • 1*24 = 4*7
  • 24 = 28, incorrect, not a proportion

C. 1/4 and 10/48

  • 1*48 = 4*10
  • 48 = 40, incorrect, not a proportion

D. 1/4 and 9/36

  • 1*36 = 4*9
  • 36 = 36, correct, this is a proportion
6 0
2 years ago
Other questions:
  • If my grandma put in 100 dollars every month for collage since I was born and I’m 15 and it’s June how much money do I currently
    6·1 answer
  • If there’s 40 students and 55% students passed.<br> What number of students passed
    9·1 answer
  • I'm not sure how to get the answer can you help me?
    7·1 answer
  • Find the vertex of the parabola.
    7·2 answers
  • Solve 9x-2y=11 for y
    8·2 answers
  • Y = n(n + 1)<br> please help!!!!
    8·1 answer
  • Help please I’ll mark as brainliest!
    9·1 answer
  • The product of -3 and m increased by 7 is -20. what is the value of m?
    12·1 answer
  • A car that Sophia wants to buy costs $21,000. She does research and finds that after 14 years the car depreciates to a value of
    9·1 answer
  • 10 POONTSGIVINGN BRAINLIEST 5 stars and THANKS TO BEST ANSWER IM REALLY HAVING TROUBLE WITH THIS ONE
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!