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Mariulka [41]
4 years ago
11

How many solutions does the system have?

Mathematics
1 answer:
Maksim231197 [3]4 years ago
3 0

Answer:

B. No solution

Step-by-step explanation:

y = 3x+9

y = 3x-7

Set the two equations equal since they are both equal to y

3x+9 = 3x-7

Subtract 3x from each side

3x+9-3x = 3x-7-3x

9 = -7

This is never true, so there are no solutions

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in a test correct answer are given positive numbers and for incorrect negative numbers jack scored in successive rounds were-65,
eimsori [14]

Answer:

<em>Jack scored a total of -40</em>

Step-by-step explanation:

<u>Arithmetic</u>

Jack took a test where the correct answers are given as positive numbers and the incorrect answers are negative numbers.

The scores were

-65,-10,-15,20,30

The total score is the arithmetic sum of all scores, including their signs:

Total score: -65-10-15+20+30

Total score: -40

Jack scored a total of -40

4 0
3 years ago
PLZ HELP ME ILL MARK BRAINLEIST!!!!!!!!!!!!
FrozenT [24]

Answer:

B. ∠1 and ∠8 are parallel

Step-by-step explanation:

identification from the image.

8 0
3 years ago
Read 2 more answers
Janet was in an accident. The damage to her car is
Svet_ta [14]

hi tAnswer:hey

Step-by-step explanation:

7 0
3 years ago
PLZ HELP ME I NEED HELP PLZ WRITE FAST
Mademuasel [1]

Answer:

1 pound

Step-by-step explanation:

11/12 - 5/6

|

(11 × 6) - (5 × 12)

––––––––––––

12 × 6

|

= 6/72

|

6 ÷ 6

–––––

72 ÷ 6

|

= 1/12

We're going to estimate that the answer is 1 pound.

8 0
3 years ago
What is the product of 4n^+3=7n?
Inessa [10]
So if you solve for n
4n^2+3=7n
make into trinomial
subtract 7n from both sides
4n^2-7n+3=0
if we can factor this, then we can asume that the factors are equal to zero becase if
xy=0 then assume x and/or y=0 so

to factor an equation in ax^2+bx+c where a is greater than 1 then
b=t+z
a times c=t times z
to factor 4n^2-7n+3 you do
4 times 3=12
what 2 numbers multiply to get 12 and add to get -7
the numbers are -3 and -4 so
split up the -7
4n^2-4n-3n+3
group
(4n^2-4n)+(-3n+3)
undistribute
(4n)(n-1)+(-3)(n-1)
reverse distributive property
ab+ac=a(b+c)
(4n-3)(n-1)=0
set each to zero
4n-3=0
add 3 to both sides
4n=3
divide both sides by 4
n=3/4

n-1=0
add 1 to both sides
n=1

n=3/4 or 1
4 0
3 years ago
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