3 years ago

What’s a solution set

1 answer:

3 0

It's the group of correct solutions to a given problem.

Imagine you have apples, pears and peaches you're asked "what fruits do you have"? Your solution set would be {apple, pear, peach}.

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Find the number, if 0.7 of it is 42.

gizmo_the_mogwai [7]

Answer:

Step-by-step explanation:

0.7x=42

42/0.7=60

3 0

2 years ago

Read 2 more answers

Calculate the area of the shaded sector. 11.73 11.2 11.4 11.83

laiz [17]

The formula for the area of a circle is

A=πr²
plug in the data we know
A=π4²
A=16π

Since we only we need to find the area of the shaded section, we need to twerk this equation a bit. (remember that the shaded section is 84/360 of the original circle.)

A=84/360*16π
A=11.728
A=11.73 units²

answer: A=11.73 units²

4 0

3 years ago

A room with a length of 270 cm and width 150 cm is to be covered with square tiles .What is the largest size of tiles to be used

Damm [24]

Find the greatest common factor of both numbers:

Factors for 150:

150: 1, 2, 5 , 6, 10, 15, 25, 30, 50, 75, 150

Factors for 270:

1, 2, 3, 5, 6 , 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270

The largest number they both have in common is 30, so the largest tile could be 30 cm^2.

5 0

3 years ago

A family of four is trying to determine what they want to do for their summer vacation and came up with three options. They have

Nikolay [14]

Option 1 =$497.5 option 2 =$494.5 option 3 =$50.5

8 0

3 years ago

Answers for both boxes please

sleet_krkn [62]

Answer:

x = -5 y = -3

Step-by-step explanation:

-3x + 2y = 9

multiply the 2nd equation by 3 to set it up for elimination

3(x - 3y)= 3(4)

3x-9y = 12

so now combine both to add

-3x + 2y = 9

3x - 9y = 12

Adding both gives you

-7y = 21

divide both by -7 and you get

y = -3

and you substitute y back into equation to get x

x - 3 (-3) = 4 gives you

x + 9 = 4

x = 4 - 9

x = -5

7 0

2 years ago