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
Feliz [49]
3 years ago
7

Solve the system of equations and choose the correct ordered pair. 3y=4x+7 and 5y=4x+25​

Mathematics
2 answers:
Luba_88 [7]3 years ago
7 0

Answer:

(5,9)

Step-by-step explanation:

3y=4x+7

5y=4x+25​

Subtract the two equations to eliminate x

5y=4x+25

-( ​3y=4x+7)

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

2y = 0x +18

Divide by 2

2y/2 = 18/2

y =9

Now find x

3y = 4x+7

3*9 = 4x+7

27 = 4x+7

Subtract 7

20 = 4x

Divide 4

20/4 = 4x/4

5 =x

(5,9)

givi [52]3 years ago
5 0

Step-by-step explanation:

3y=4x+7_equation 1

5y=4x+25_equation 2

multiply equation 1 by 5 an equation 2 by 3

15y=20x+35_equation 3

15y=12x+75_equation 4

subtract equations 4 from equation 3

0=8x-40

40=8x

divide both sides by 8

x=5

substitute x into equation 1

3y=4(5)+7

3y=20+7

3y=27

divide both sides by 3

y=9

You might be interested in
Solve x please explain
Anna [14]

Answer:

x = 4

Step-by-step explanation:

co interior angles add up to 180.

this means that: 48 + 34x - 4 = 180

thus 48 + 34x = 184

therefore, 34x = 136

so, x = 4.

8 0
2 years ago
Read 2 more answers
Subtract using the number line -3/5 - (-2/5) (picture provided)
lara31 [8.8K]

Answer:

<h2>-1/5</h2>

Step-by-step explanation:

Starting at -3/5 you need to subtract -2/5.

When you subtract a negative number, the sign flips and you add instead. Often, you are taught that two similar signs means add and two opposite signs mean minus.

<em>+ + = +</em>

<em>- - = -</em>

<em>+ - = -</em>

<em>- + = -</em>

<em />

This means -3/5 - -2/5 becomes -3/5 + 2/5.

Because you are adding, you move two lines to the right on the number line.

You end at -1/5.

5 0
3 years ago
Read 2 more answers
Tyler is offered to choose between three boxes that look identical. The first box contains 1 red pills and 19 blue pills, the se
Dafna1 [17]

Answer:

A) 0.15

B) 0.36

Step-by-step explanation:

First Box consist 1 red pills and 19 blue pills

second box consist 6 red pills and 14 blue pills

Third box consist 2 red pills and 18 blue pills

a) Prob ( randomly chosen pill is red) = \frac{1}{3} \times \frac{1}{20} + \frac{1}{3} \times \frac{6}{20} + \frac{1}{3} \times \frac{2}{20}

\frac{1}{60} (1+6+2) = 0.15

b)Prob ( 1 reds and 10 blue pilss) =\frac{1}{3} \frac{^1C_1\times ^{19}C_{10}}{^{20}C_{11}} + \frac{1}{3} \frac{^6C_1\times ^{14}C_{10}}{^{20}C_{11}} + \frac{1}{3} \frac{^2C_1\times ^{18}C_{10}}{^{20}C_{11}}

= \frac{1}{3} 1.106 = 0.368

7 0
3 years ago
For the square root of 55 what is the nearest whole number?
baherus [9]
60'or50' just trying if I want to tryp
3 0
3 years ago
Read 2 more answers
Simplify each expression.
kati45 [8]

1:13x-14

2:-6x+21

3: 20x-18

4:5x+15

5:14n+36

6:-12n+17

7:8n+32

8:k-11

9:-7k+37

10:-13k+34

11:2k+7

12:x+52

13:-2x+21

14:3x+21

15:12y-11

16:-26u+25

17:-42u+42

18:13u-7

8 0
3 years ago
Other questions:
  • The diameter of a circle is 4 meters. What is the circle's circumference?
    12·1 answer
  • 20 POINTS!!! WRONG ANSWERS WILL BE REPORTED!!
    10·1 answer
  • What is the domain and range of the function f(x) = x^2 -4x-5?
    11·1 answer
  • A local Dot Dress Shop is selling a suit for $99. Due to changing styles the 1st markdown was 8% and the second markdown 25%. Th
    10·1 answer
  • How much is the new amount and the sale price between a $39.backpack that's on sale for 33%?
    9·1 answer
  • the population change from one year to the next of a town is -435 what is the absolute value of this population change
    14·1 answer
  • Its complete solution <br>and answer is 45​
    5·1 answer
  • Combine like terms.<br><br> 2yexp2 + 2(8yexp2 − 7) =
    14·2 answers
  • A statue is 7 - feet tall. How many inches tall is the statue? 1 foot = 12 inches
    12·1 answer
  • Hello, can someone please help me asap! thanks
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!