3 years ago

I need help on one of my work sheet questions.

Mathematics

2 answers:

zmey [24]3 years ago

8 0

Step-by-step explanation:

there is your answers worked out step by step

Bas_tet [7]3 years ago

7 0

Answer:

0 $\leq$ x $\leq$ 18

Step-by-step explanation:

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Solve the system, or show that it has no solution. (If there is no solution, enter NO SOLUTION. If there are an infinite number

liberstina [14]

Answer:

The system has an infinite set of solutions $(x,y) = (x, \frac{x-5}{4})$

Step-by-step explanation:

From the first equation:

$20x - 80y = 100$

$20x = 100 + 80y$

$x = \frac{100 + 80y}{20}$

$x = 5 + 4y$

Replacing on the second equation:

$-14x + 56y = -70$

$-14(5 + 4y) + 56y = -70$

$-70 - 56y + 56y = -70$

$0 = 0$

This means that the system has an infinite number of solutions, considering:

$x = 5 + 4y$

$4y = x - 5$

$y = \frac{x - 5}{4}$

The system has an infinite set of solutions $(x,y) = (x, \frac{x-5}{4})$

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3 years ago

( Will give Brainliest) Please Helpp

gogolik [260]

Answer:

8cm

Step-by-step explanation:

Area of a triangle equals bh/2

If you plug in the data, you get

10= $\frac{5}{2}$ * $\frac{h}{2}$

10= $\frac{5h}{4}$

40=5h

h=8

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3 years ago

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Dima020 [189]

3x + 9 = 21
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