All categories

3 years ago

Can someone help me with this

Mathematics

2 answers:

vagabundo [1.1K]3 years ago

3 0

Answer:

0,5 is not a solution

Step-by-step explanation:

Dahasolnce [82]3 years ago

3 0

Answer:

(0,5)

Step-by-step explanation:

Just plug them in:

2x - y = 10

- 2 (0) - (5) = 10?

no because 2 x 0 is 0. That would mean -5 = 10. which isn't true

- 2 (10) - (10)?

yes because 2 x 10 is 20. Subtract 10 from that and you get 10. so 10 =10

- 2 (5) - (0)?

yes because 2 x 5 is 10. There is nothing to subtract from 10 so you get 10. 10 =10.

You might be interested in

$7.50 meal; 6.5% tax _____

enyata [817]

Answer:

14.0

Step-by-step explanation:

$7.50 meal + your 6.5$ tax.

We add those and it will equal 14.00

7 0

3 years ago

Read 2 more answers

David correctly factored the expression m2 -12m - 64 which expression did he write ?

Olin [163]

Answer:

Kiaris I did it check ur Gamil

Step-by-step explanation:

5 0

2 years ago

David split 3/4 pounds of candy among 4 people. What is the unit rate in pounds per person. write your answer in simplest form

luda_lava [24]

1/2 pounds per person .

8 0

2 years ago

Find the area of each figure below

Ugo [173]

Answer:

25. $27a^{3}b^{2}$

26. $3\pi x^{3}y$

Step-by-step explanation:

For 25:

$A = \frac{a+b}{2} h$ (area of a trapezoid)

$A=\frac{11a^{2}b+7a^{2}b}{2} *3ab$ (substitute terms)

$= \frac{18a^{2}b}{2}*3ab$ (collect like terms)

$= 9a^{2}b*3ab$ (reduce the fraction by crossing out 2)

$= 27a^{3}b^{2}$ (calculate)

For 26:

$A=\pi r^{2}$ (equation of area of a circle)

$A=\pi (3x^{3} y)^{2}$ (enter the radius)

$= 3\pi x^{3} y$ (communtative property to reorder the terms)

7 0

2 years ago

I need help finding the angles. The answer Isn't even

mart [117]

The 3 inside angles of a triangle equal 180.

Add the 3 angles together to equal 180:

X + (5x-20) + 4x = 180

Simplify the left side by adding like terms:

10x-20 = 180

Add 20 to each side:

10x = 200

Divide both sides by 10:

x = 20

Angle A = x = 20

Angle B = 4X = 4(20) = 80

Angle C = 5x-20 = 5(20) -20 = 100-20 = 80

6 0

2 years ago