3 years ago

Is (10, 5) a solution to this system of inequalities? 20x + 4y > 5 x + y < 15

Mathematics

1 answer:

Sergio039 [100]3 years ago

8 0

No, it is not a solution, as 15 is not less-than fifteen.<span />

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How do you solve "Six less than the quotient of a number and two equals fifteen".

Ainat [17]

X/2 - 6 = 15
x/2 -6 +6 = 15 + 6
x/2 = 21
x/2 × 2 = 21 × 2
x = 42

Check
42 ÷ 2 - 6 = 15
42 ÷ 2 = 21 -6 = 15

7 0

4 years ago

The triangles above are similar write a similarity statement if possible solve for x the images are not drawn to scale

e-lub [12.9K]

Answer:

The value of x is 8.

Step-by-step explanation:

In triangle PQR and XZY,

$\angle P=\angle X=90^{\circ}$

$\angle Q=\angle Z$

$\angle R=\angle Y$

By AA property of similarity, we can say that

$\triangle PQR\sim \triangle XZY$

The similarity statement is $\triangle PQR\sim \triangle XZY$ .

The corresponding sides of similar triangles are proportional. Since both triangles are similar, so

$\frac{PQ}{QR}=\frac{XZ}{ZY}$

$\frac{21}{28}=\frac{5x+2}{7x}$

$\frac{3}{4}=\frac{5x+2}{7x}$

$7x\times 3=(5x+2)\times 4$

$21x=20x+8$

$21x-20x=8$

$x=8$

Therefore the value of x is 8.

4 0

4 years ago

*IF AWNSER WILL ADD BRAINLYEST*

murzikaleks [220]

Answer: C: y = 4x + 20

Step-by-step explanation:

4x is multiplying 4 by the number of levels, and you add the castles he's already found which is 4*5 =20.

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Answer:

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3 years ago

Which is bigger 2/3 or 7/13

Kitty [74]

Answer:

7/13

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