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
kenny6666 [7]
3 years ago
12

How is everyone's day going? Mine is okay can u help me on this question?

Mathematics
2 answers:
IrinaVladis [17]3 years ago
8 0

Answer:

x = 2 and y = 7

Step-by-step explanation:

We are given two equations:

1.      8x + y = 23

2. −10x  - y = −27

By adding both equations with each other we get:

(1.+2.) -2x = -4

Which can be reduced to:

(1.+2. : (-2)) x = 2

We can insert x in Equation 1. (or 2) and get:

8*2 + y = 23

16 + y = 23         [-16 on both sides]

y = 7

Resulting in x = 2 and y = 7 as a possible solution for this system.

ludmilkaskok [199]3 years ago
4 0

Answer:

Step-by-step explanation:

8x + y = 23

-10x - y = -27

-2x = -4

x = 2

8(2) + y = 23

16 + y = 23

y = 7

(2, 7)

You might be interested in
Of the labeled points, which represents the animal
Paha777 [63]

The ratio of life expectancy to gestation period is greatest at point (A) A.

<h3>What is life expectancy?</h3>
  • Life expectancy is a statistical measure of how long an organism is expected to live based on its birth year, current age, and other demographic factors such as gender.
  • The most commonly used metric is life expectancy at birth (LEB), which has two definitions.

To find the labeled points, which represent the animal for which the ratio of life expectancy to gestation period is greatest:

  • The graph below shows life expectancy on the y-axis and gestation period on the x-axis.
  • The life expectancy to gestation period ratio for point A is 7/22.5 = 14/45.
  • For point B, the ratio is 8/45.
  • Because the y coordinate is greater at Y than at X, which has the same x coordinate, we only consider the ratio at D, which is 10/51.
  • Since 14/45 > 8/45, we only have to compare 14/45 and 10/51.
  • So, 14 × 51 = 714 and 45 × 10 = 450.
  • Then, 14/45 > 10/51.

Therefore, the ratio of life expectancy to gestation period is greatest at point (A) A.

Know more about life expectancy here:

brainly.com/question/4648168

#SPJ4

The correct question is given below:
Of the labeled points, which represent the animal for which the ratio of life expectancy to gestation period is greatest?

A) A

B) B

C) C

D) D

8 0
2 years ago
2y-2z= -4<br> - 4y+2z = -2<br> x+4y-z=-5
Bumek [7]

Answer:

(-12,3,5)

x=-12,y=3.z=5

Step-by-step explanation:

6 0
4 years ago
The original price of a skateboard was reduced by $15. The new price is $49.
olasank [31]

Answer:

The original price of a skateboard is $64

Step-by-step explanation:

Let

x ----> the original price of a skateboard

y ----> the new price of a skateboard

we know that

The linear equation that represent this problem is equal to

y=x-15 ----> equation A

y=49 ---> equation B

substitute equation B in equation A and solve for x

49=x-15

Adds 15 both sides

49+15=x

64=x

Rewrite

x=$64

6 0
3 years ago
Write mixed number as a fraction 5 1/2​
Virty [35]

Answer:11/2

Step-by-step explanation:You multiply 5 and 2, the answer will be 10. Plus 1, 11. So, 11/2

3 0
3 years ago
Read 2 more answers
What is the sum of 1/9, 2/3, and 5/18?<br> A. 19/18<br> B.4/15<br> C. 12/9<br> D. 8/20
kari74 [83]

Answer:

19/18

Step-by-step explanation:

The GCF of 9, 3, and 18 is 18.

Each denominator must be multiplied to 18, and as a result what you multiply in the denominator MUST be multiplied in the numerator.

9 * 2 = 18

1 * 2 = 2

2/18

3 * 6 = 18

6 * 2 = 12

12/18

5/18

Add all three fractions together:

12/18 + 5/18 + 2/18 = 19/18

8 0
3 years ago
Other questions:
  • 8% of the students at Jefferson Middle School are absent because of illness. If there are 150 students in the school, how many a
    5·2 answers
  • What is the slope of y=3x-10
    13·2 answers
  • 10. Elaine is buying cube shaped blocks to add to her mantle as decoration. 1 point
    6·1 answer
  • What is the number after trillion?
    14·2 answers
  • What is the equation of the ellipse with foci (5,0).(-5, O) and co-vertices (0, 4), (0,<br> -4)?
    9·1 answer
  • When constructing an equilateral triangle, what is the first step? What piece of information must you be given?
    13·1 answer
  • Calculate the distance between the point(5,6) and (7,8)​
    9·1 answer
  • Three pounds of bananas cost $7. How many pounds of bananas per dollar is that?
    12·2 answers
  • Help plz:)))I’ll mark u Brainliest
    9·2 answers
  • My grandson thinks he can cook better than any other
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!