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SCORPION-xisa [38]
2 years ago
14

I need help with this question pls help

Mathematics
1 answer:
Blababa [14]2 years ago
5 0

Answer:

y = - 4

Step-by-step explanation:

x = - 2

3x - 2y = 2

substitute x = - 2 into 3x - 2y = 2

3(- 2) - 2y = 2 ← step 1

- 6 - 2y = 2 ( add 6 to both sides ) ← step 2

- 2y = 8 ( divide both sides by - 2 )

y = - 4

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PleAse help and show how you got it if you don’t mind
Lorico [155]
1)

\bf \textit{surface area of a cube}\\\\
s=6x^2\quad 
\begin{cases}
x=\textit{length of a side}\\
---------\\
s=150
\end{cases}\implies 150=6x^2\implies \cfrac{150}{6}=x^2
\\\\\\
25=x^2\implies \sqrt{25}=x\implies \boxed{5=x}

3)

\bf \textit{volume of a square pyramid}\\\\
V=\cfrac{b^2h}{3}\quad 
\begin{cases}
b=\textit{base's side}\\
h=height\\
-------\\
h=3\\
V=25
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3 0
3 years ago
Find the value of x if possible
olga nikolaevna [1]

Answer:

Step-by-step explanation:

6x - 17 = 3x + 7

3x = 24

x = 8

7 0
3 years ago
5.
WINSTONCH [101]

Answer:

Step-by-step explanation:

The triangles are not similar. Looking at the diagram, triangle STU is smaller than triangle PQR. If they are similar, it would mean that

ST/PQ = TU/QR = SU/PR

This means that there would be a scale factor. Substituting, the values, it becomes

ST/PQ = 7/9 = 0.78

TU/QR = 10/15 = 0.67

SU/PR = 8/12 = 0.67

Therefore, since

ST/PQ ≠ TU/QR ≠ SU/PR

The triangles are not similar.

5 0
3 years ago
A Mustang GT on Missouri has a marked price of $60,000. If paid in cash you are to pay 15% less than the marked price. It also h
xxTIMURxx [149]

Answer:

A) Discount on Cash price. ($9,000 )

B) Cash Price. ($51,000 )

C) Amount Payable. ($51,000 )

D ) Hire Purchase Price ($66,000 )

E ) Difference between the Hire Purchase price and the Cash Price. ($15,000 )

Step-by-step explanation:

The following is the workings:

The GT Missouri marked price = $60,000

If paying cash,

Discount = 15%

(15/ 100 ) x $60,000 = $9,000

Actual Price (less discount) = $60,000 - $9000 = $51,000

If hire purchase,

Firstly, 30% marked price,

= (30/100) x $60,000 = $18,000

Monthly payment = $1000

Period = 4 years = 4 x 12 = 48 months

Total monthly payment,

$1000 x 48 = $48, 000

Therefore, total hire purchase payment

Monthly payment + initial 30% payment

= $18,000 + $48,000 = $66,000

Difference between hire purchase and cash price,

= $66,000 - $51,000 = $15,000

5 0
3 years ago
The slope-intercept form of the equation of a line that passes through point (–3, 8) is y = -2/3–x + 6. What is the point-slope
lilavasa [31]
The correct answer is d
8 0
4 years ago
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