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Leokris [45]
3 years ago
13

Help! Need help!

Mathematics
1 answer:
sweet [91]3 years ago
8 0
Website 1 : y = 1.50x + 30
website 2 : y = 2x + 0...or just y = 2x
=======================
y = 4x - 4
y = -4x + 4

4x - 4 = -4x + 4
4x + 4x = 4 + 4
8x = 8
x = 1

y = 4x - 4
y = 4(1) - 4
y = 4 - 4
y = 0

so this is a consistent system because it has one solution (1,0)


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If a: b= 3:4 then find the value of<br>(6a-3b :(5a + 2b)​
KengaRu [80]

Answer:

6 : 23

Step-by-step explanation:

a : b = 3 : 4 ....(given)\\  \\ let \: a = 3x \\ b = 4x \\  \\ (6a - 3b) : (5a + 2b) \\  \\  =  \frac{(6a - 3b)}{(5a + 2b)}  \\  \\  = \frac{6(3x) - 3(4x)}{5(3x) + 2(4x)} \\  \\  =  \frac{18x- 12x}{15x+ 8x} \\  \\  = \frac{6x}{23x} \\  \\  =  \frac{6}{23}  \\  \\ (6a - 3b) : (5a + 2b) = 6  : 23

7 0
3 years ago
A 40-foot-tall flagpole casts a shadow that is 8 ft long. find the length, in feet, of a shadow cast by a nearby man who is 6 fe
Ray Of Light [21]
1.2 feet is the size of the shadow of a 6 foot tall man. 
6 0
4 years ago
PLEASE HELP .!!! ILL GIVE BRAINLIEST.. *EXRTA POINTS* .. DONT SKIP :(( ! <br> ILL GIVE 30 POINTS .
zheka24 [161]

Answer:

a200

Step-by-step explanation:

4 0
3 years ago
Kaveri has a total rs 590 as currency notes is the denominations ofrs50 , rs 20 , and rs 10 . the ratio of the number of rs 50 n
DerKrebs [107]
Let
x = number of rs 50
y = number of rs 20
z = number of rs 10

Because there are 25 total notes,
x + y +  z = 25              (1)

The ratio of rs 50 to rs 20 is 3:5, therefore
x = 0.6y                       (2)

The total amount is rs 590, therefore
50x + 20y + 10z = 590      
or
5x + 2y + z = 59            (3)

Subtract (1) from (3).
4x + y = 34            (4)
Substitute (2) into (4).
4*(0.6y) + y = 34
3.4y = 34
y = 10

From (2), obtain
x = 6
From (1), obtain
z = 25 - 6 - 10 = 9

Answer:
Kaveri has
 6 rs 50 notes,
10 rs 20 notes,
 9 rs 10 notes.
5 0
4 years ago
(-2)+5x+(-2x)-2x+(-4)+3
jek_recluse [69]

Answer:X=-3

Step-by-step explanation:

5 x -2x -2x -2-4+3

3 0
4 years ago
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