What is 20 percent of 70 plants

Answers

Answer 1

Answer: $p\%=(p)/(100)\n\n20\%=(20)/(100)=(2)/(10)=0.2\n\n20\%\ of\ 70\ plants:\n\n\boxed{0.2\cdot70\ plants= 14\ plants}$

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Evaluate a + b for a = 2 and b = 3.
1
5
6

Answers

a = 2
b = 3.156

(a + b) = (2) + (3.156) = 5.156

just add if it were normal 2 + 3 = 5 and just out the .156

answer is 5.156

Please Help! Brainliest going!

Answers

Answer: 7/4

Step-by-step explanation:

you would first add 5 to both sides

4x-5+5= -12+5

then simplify

4x= -7

divide 4 on both sides

4x/4= -7/4

and you get x=7/4

Answer:

The answer to your question is:

x = 2

y = 4

Step-by-step explanation:

4x - 5y = -12 (1)

-x + 5y = 18 (2)

Solve the system

4x - 5y = -12

-x + 5y = 18

3x + 0 = 6

3x = 6

x = 6 / 3

x = 2

Substitution

4(2) - 5y = -12

8 -5y = -12

-5y = -12 - 8

-5y = -20

y = -20 / -5

y = 4

Valerie purchased x tubes of lipstick at $4 each and y bottles of nail polish at $2 each. she spents less than $12 not including tax. which point represents a reasonable number of lipsticks and bottles of nail polish that valerie purchased?a) 2,3
b) 1,5
c) 1,3
d) 2,2

Answers

this can be solved with an equation.

$4x+2y< 12$

now, as far as I can tell this question was made multiple choice for a reason; just start to plug in numbers. So using the answers x is either equal to 1 or 2. lets try and solve the equation plugging 2 in. When you solve for this you end up with $y<2$ none of your answers have one where y<2 so x must be 1. so lets solve for x=1.
you end up getting $y<4$

The only answer where x=1 and y<4 is C sos c is your answer. Hope this helped! :)

An isosceles triangle has base angles that each measure 48°. Which equation can be used to find x, the measure of the third angle of this isosceles triangle in degrees?

Answers

Answer:

Step-by-step explanation:

It would be 48+48+x=180, since 3 angles in any triangle will always measure 180, by definition of a triangle. I guess you could also do 2(48)+x=180, but the first equation just makes it more intuitive I guess. The reason why this works is because since 3 angles must equal 180, the missing angle, x, must be the value of 180-48-48, since that would be the remaining value needed to make a triangle

Mrs. aviles is planning a fruit-cup party for a class of 18 students and two teachers. She spends $10 for a package of snacks and also takes orders in advance for fruit cups that cost $3 each. 1. describe the domain of the function both in words and numbers?
2. what is the range?

Answers

Answer:

domain is x = 3

Thus domain means that for every fruit cup costs $3

Range is f(20) = 60

Step-by-step explanation:

We are given;

Total students for the fruit cup party = 18

Total teachers for the fruit cup party = 2

Cost of each fruit cup =$ 3

Delivery charge = $ 10

Now, the total number of people attending the party = Total number of students + Total number of teachers

Thus;

Total number of people attending party = 18 + 2 = 20

Since cost of each fruit cup is $3.

Thus, for 20 fruit cups, the function is;

f(x) = 20x where x is cost of each fruit cup.

It means the cost of 20 fruit cups = $3 × 20 = $60

Thus, domain is x = 3

Thus domain means that for every fruit cup costs $3

Range is f(20) = 60

The time that a traffic light remains yellow is 1 second more than 0.05 times the speed limit. 1. Write an equation that represents Y, the length of the time the light is yellow at x miles per hour.

Answers

Answer:

Step-by-step explanation:

Let's use the variable Y to represent the length of time (in seconds) that the traffic light remains yellow at a speed of x miles per hour. According to the information given, the time the light is yellow (Y) is 1 second more than 0.05 times the speed limit (x). We can write this as:

Y = 0.05x + 1

In this equation:

Y represents the length of time the light is yellow in seconds.

x represents the speed limit in miles per hour.

The equation shows that the time the light is yellow increases linearly with the speed limit, with an additional 1-second buffer.

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