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garri49 [273]
3 years ago
7

4y = 9x - 21 y = x-4

Mathematics
2 answers:
Anastaziya [24]3 years ago
5 0

Answer:

x = 1

y = -3

Step-by-step explanation:

if y = x - 4

then reorganise the first equation

4 (x - 4) = 9x -21

4x - 16 = 9x - 21

5 = 5x

x = 1

jasenka [17]3 years ago
3 0

Answer:

Point form:

(1,-3)

Equation form:

x = 1 ,y = -3

Please let me know if this is incorrect.

Hope I helped though.

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-3p + 8 = -13 <br><br> HELLLLPP
ella [17]

Answer:

p=-7     :)

Step-by-step explanation:

-13-8=3p

-13+(-8)=3p

-21=3p

  ÷3

-7=p

5 0
3 years ago
Select the correct answer.
Irina18 [472]
D. About 122 units I just took the test
4 0
2 years ago
Please help ASAP!!!??
Mazyrski [523]

Answer:

\{-2,-1,1,2,4\}

Step-by-step explanation:

Given

The attached graph

Required

Determine the range of the graph

First, we list out the coordinate of each point on the graph:

The points are:

\{(-4,-1),(-3,-2),(-2,2),(1,1),(2,4)\}

A function has the form: (x,y)

Where

y = range:

From the coordinate points above,

y = \{-1,-2,2,1,4\}

Order from least to greatest"

y = \{-2,-1,1,2,4\}

Hence, the range are: \{-2,-1,1,2,4\}

4 0
3 years ago
@mehek14
gayaneshka [121]
X=cost per hamburgurs
y=cost per hot dog

200x+150y=1450
200x+250y=1750

we can multiply first equation by -1 and add to 2nd

-200x-150y=-1450
<u>200x+250y=1750 +</u>
0x+100y=300

100y=300
divide both sides by 100
y=3

sub back

200x+150y=1450
200x+150(3)=1450
200x+450=1450
minus 450 both sides
200x=1000
divide both sides by 200
x=5


the cost of a hamburgur is $5
the cost of a hot dog is $3
8 0
3 years ago
Read 2 more answers
Answer it all please
fgiga [73]
What do you need help with? it helps us to know the question!
3 0
3 years ago
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