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LenKa [72]
3 years ago
9

M3D5

Mathematics
1 answer:
stich3 [128]3 years ago
3 0
The third one is the answer
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4x – 3y=8<br> 2. 5x – 2y = -11
AlladinOne [14]

Answer:

x = -7

y =  - 12

Step-by-step explanation:

The given system is:

4x-3y=8

5x-2y=-11

We make x the subject in the top equation to get:

x =  \frac{3}{4}y + 2

Plug this expression for x in the bottom equation to get

5( \frac{3}{4}y + 2) - 2y=  - 11

We expand to obtain

\frac{15}{4} y + 10 - 2y =  - 11

Multiply through by 4

15y + 40 - 8y =  - 44

Group similar terms

15y - 8y =  - 44 - 40

7y =  - 84

y =  -  \frac{84}{7}  =-12

This means

x =  -12\times  \frac{3}{4}  + 2

x =  - 7

6 0
3 years ago
Can someone pls help me with this?
Hatshy [7]

Answer:

Between 1 and 3 seconds

Step-by-step explanation:

There is no change in distance ( change in y ) between 1 and 3, so she wasn't walking during that time

4 0
3 years ago
Read 2 more answers
The sum of two numbers is 18. The larger number is twice as large as the smaller number. What are the two numbers? Please explai
snow_tiger [21]
The two numbers are 12 and 16. 12 + 6 = 18. 6 doubled is 12. 12 plus 6 equals 18. 
7 0
3 years ago
What is the first step in solving the following system of equations?
Gelneren [198K]

Answer:

B

Step-by-step explanation:

its b solve the first equation for y \

hope this helps

brainliest would be appreciated

8 0
2 years ago
F(x) = 8x - 10
otez555 [7]
Fx=8(20) -10
fx= 160-10
answer= 150
3 0
3 years ago
Read 2 more answers
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