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Masteriza [31]
3 years ago
6

Solve by substitution ANSWER NOW

Mathematics
1 answer:
Zanzabum3 years ago
7 0
X = 11-y
plug in that for the first equation

2(11-y) - 3y = 8
22-2y-3y = 8
22-5y = 8
5y = 14
y = 14/5

x = 11-y
x = 11-14/5
x = 41/5

(41/5, 14/5)
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Jason opened an account at MathsWatch Bank. MathsWatch Bank’s interest rate was 4%. After one year, the bank paid him interest.
8_murik_8 [283]

Answer:

1900

Step-by-step explanation:

let the deposit amount=x

interest=4%

total percent =100

after adding interest percentage=100+4=104%

X x 104/100=1976

x=1976 x 100/104=1900

7 0
4 years ago
Find the matrices of ​
aniked [119]

\huge{\sf \left[{x-2y\atop 6x-2z}\:\:\:{4y-3\atop 2y-z}\right]=\left[{-3\atop 4}\:\:\:{5\atop 3}\right]}

Creating equations

\\ \sf\longmapsto x-2y=-3\dots(1)

\\ \sf\longmapsto 4y-3=5\dots(2)

\\ \sf\longmapsto 6x-2z=4\dots(3)

\\ \sf\longmapsto 2y-z=3\dots(3)

  • From eq(2)

\\ \sf\longmapsto 4y-3=5

\\ \sf\longmapsto 4y=5+3

\\ \sf\longmapsto 4y=8

\\ \sf\longmapsto y=\dfrac{8}{4}

\\ \bf\longmapsto y=2

  • Put the value in eq(1)

\\ \sf\longmapsto x-2y=-3

\\ \sf\longmapsto x=-3+2y

\\ \sf\longmapsto x=-3+2(2)

\\ \sf\longmapsto x=-3+4

\\ \bf\longmapsto x=1

  • Put the value in eq(4)

\\ \sf\longmapsto 2y-z=3

\\ \sf\longmapsto z=2y-3

\\ \sf\longmapsto z=2(2)-3

\\ \sf\longmapsto z=4-3

\\ \bf\longmapsto z=1

8 0
3 years ago
Determine the cosine of ∠B.
Blizzard [7]
I hope this helps you

6 0
3 years ago
Read 2 more answers
Can you please help me with this urgently need help?<br> It is grade 12 advance function question
andrey2020 [161]

Answer: The spin of the wheel by the contestant is an illustration of a sine function whose equation is y = -1.25sin(0.8x + 0.25)

8 0
2 years ago
Read 2 more answers
Someone Help Please:))
timama [110]

Answer:

(0,3), (1,4) (2,5) and (3,6)

Step-by-step explanation:

f(x) = x + 3 is equivalent to y = 1x + 3 (y = mx + b)

b = the y intercept, when x is 0.

So y = 3, which means its (0,3)

To check:

f(x) = x + 3

f(0) = 0 +3

f(0) = 3

(0,3)

Now let's try that for all the values (1,2 and 3)

f(x) = x + 3

f(1) = 1 + 3

f(1) = 4

(1,4)

f(x) = x + 3

f(2) = 2 + 3

f(2) = 5

(2,5)

f(x) = x + 3

f(3) = 3 + 3

f(3) = 6

(3,6)

Hope that helps!

4 0
2 years ago
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