All categories

2 years ago

Solve the system of equations using substitution.

Mathematics

1 answer:

OLEGan [10]2 years ago

7 0

$y=4x+6\\
y=2x\\\\
4x+6=2x\\
2x=-6\\
x=-3\\\\
y=2\cdot(-3)\\
y=-6\\\\
\boxed{(x,y)=(-3,-6)}$

You might be interested in

Can someone help me with this?

aivan3 [116]

Step-by-step explanation:

The formula for the volume of a sphere is V = 4/3 πr³.

Given

Volume (v) = 57ft³

$v = \frac{4}{3} \pi {r}^{3}$

$57 = \frac{4}{3} \times 3.14 \times {r}^{3}$

$57 = \frac{12.56}{3} \times {r}^{3}$

$57 = 4.19 \times {r}^{3}$

${r}^{3} = \frac{57}{4.19}$

${r}^{3} = 13.6$

$r = \sqrt[3]{13.6}$

Therefore r = 2.4 ft

I gave my answers by rounding off. so if you don't round off then it's answer is 2.3 ft

7 0

2 years ago

Please i need help for all of them!!

lianna [129]

Answer:

1) x=65

2) x= 70

3) x= 40

4) x= 131

5) x= 75

6) x= 49

7) x= -12

8) x= 42

3 0

3 years ago

Alice subscribes to the symphony. the cost is $295.55 for 32 performances. if alice sells you four tickets, what will they cost

Jobisdone [24]

32 performance = $295.55

1 performance = 299.55 ÷ 32 = $9.24

4 performance = $9.24 x 4 = $36.96

------------------------------------------------------------------
Answer: It will cost $36.96.
------------------------------------------------------------------

7 0

3 years ago

8 + - 8 over 7 simplest form

inn [45]

Answer:

Step-by-step explanation:

6 0

3 years ago

HELP MEEEEE!!!!!!!!!!!

Nina [5.8K]

Answer:

B. ii and iii

Sorry if im wrong

Step-by-step explanation:

6 0

3 years ago