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
lozanna [386]
3 years ago
12

How do I solve this please help!​

Mathematics
1 answer:
mr Goodwill [35]3 years ago
3 0

Answer:

9 x + 8 y = 10   (I)

y = -4x + 7        (II)

One way is to rewrite the second as

4x + y = 7

Now multiply this equation by 8

32 x + 8 y = 56

9 x + 8 y = 10        and now subtract the equations

23 x = 46     this gives x as 2

From equation (II)  y = -4 (2) + 7  = -1

So our values are (2, -1)

Check:

(I) 9 x + 8 y = 10         9 * 2 - 8 = 10

(II)  4 x + y = 7       or 4 * 2 - 1 = 7

Or you can substitute equation (II) directly into equation (I)

You might be interested in
I am stuck on this will give brainest
Cloud [144]

Answer:

Step-by-step explanation:

21. (24)(2)/6+4=48

=48/6+4

=8+4

=12

6 0
3 years ago
Read 2 more answers
This table shows the population of caribou in an area over a period of years . a. What is the growth factor? b. Write an equatio
elena55 [62]

Answer:

I Think its B

Step-by-step explanation:

Edge 2021

3 0
3 years ago
How much should be added to the sum of 25 1/ 6 and 7 2 /5 to get 60 answer
mina [271]

Answer:

<em>X</em> = 27 13/30

Step-by-step explanation:

First you need to find the least common denominator of 5 and 6 to get 30 so it is 25 5/30 + 7 12/30 + <em>x</em> = 60. From there you add the two together to get  32 17/30 + <em>x</em> = 60. Subtract 32 17/30 from both sides of the equation to get the value of <em>x</em> which comes out to 27 13/30.

5 0
3 years ago
Ella swims four times a week at her club's pool. She swims the same number of laps on Monday, Wednesday, and Friday, and 15 laps
ZanzabumX [31]

Answer:

Equation for the problem

3x + 15 = 51 laps

Hence

She swims on

Monday: 12 laps

Wednesday : 12 laps

Friday = 12 laps

Step-by-step explanation:

Ella swims four times a week at her club's pool.

We are told that:

She swims the same number of laps on Monday, Wednesday, and Friday.

Hence, the number rod times that she swims on Monday, Wednesday and Friday is represented by x

Also, she swims 15 laps on Saturday. She swims a total of 51 laps each week. Equation for the problem

= x + x + x + 15 = 51 laps

3x + 15 = 51 laps

Hence

3x = 51 - 15

3x = 36

x = 36/3

x = 12 laps

Therefore, She swims on:

Monday: 12 laps

Wednesday : 12 laps

Friday = 12 laps

5 0
3 years ago
Please help with 1 question thank you.
frosja888 [35]
Let's replace the first, second, third, and home with letters.
first base = F
second base = S
Third base = T
home base = H
We have two triangles, ΔHTS and ΔHFS
We know HS = HS because it's a shared side.
We know FS = TS
We know that ∠HST and ∠HSF are equal.
Because of SAS, the two triangles are congruent.

According to CPCTC, TH must be congruent to FH.
Thus, the distance from home plate to third base and the distance from home plate to first base must be the same.

Have an awesome day! :)
7 0
4 years ago
Other questions:
  • If f(x)=x+8 and g(x) = -4x - 3, find (f+g)(x)
    13·1 answer
  • WILL MARK BRAINLIEST WHEN GIVEN THE CHANCE!!!!!
    11·1 answer
  • A deck of cards contains 52 different cards. The probability of drawing a 10
    9·2 answers
  • What is the solution to 4x +6 &lt; equal to 18
    10·1 answer
  • Which characteristic did Soviet communism share with Nazi fascism in
    13·1 answer
  • PLZ HELP CLICK THE PIC
    13·1 answer
  • The ratio of adult tickets sold to child tickets sold was 3:2, how many<br> child tickets were sold?
    7·2 answers
  • What is the vertex of f(x)=x^2+6x+1 <br><br> Write your answer as an ordered pair without spaces
    11·1 answer
  • Select all ordered pairs that satisfy the function
    10·1 answer
  • The sum of 3 rational numbers is 90 determine these 3 numbers
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!