PLZ help I am confusion. Math is hard

Answer:

80%

Step-by-step explanation:

We are told that 1,200 students wore their school colors of green and white.

Also, we are told that 300 students did not wear school colours green and white.

Thus, total number of students = 1200 + 300 = 1500

Thus;

percent of the school population who wore their school colors is; (1200/1500) × 100% = 80%

Answer:

156

Step-by-step explanation:

you can actually use a calculator for this.

1,872 muffins packaged into boxes that hold 12 muffins.

that means 1,872/12

which is 156

Answer:

it is 156

Step-by-step explanation:

Answer:

14b +64

Step-by-step explanation:

as listed above

Answer:

Karen will pay $85.6!

Step-by-step explanation:

7% of 80 is 5.6!

80+5.6=85.6!

Answer:

$60

Step-by-step explanation:

First we have to find the default cost for a single CD.

8 ÷ 32

Divide.

8 ÷ 32 = 4

Now that we have the default cost, we have to find the price for 15 CDs.

4 x 15

Multiply.

4 x 15 = 60

Option A is correct answer, X = 3

Answer:

yep that's right

Step-by-step explanation:

go see

Answer:

Step-by-step explanation:

Given points

Midpoint is

Answer:

-51 6/10 or -51 60/100

Step-by-step explanation:

De tal forma que los números son: 51-52-53. Comprobando estos tres números consecutivos enteros: 51+52+53=156.

espero que esto te ayude :)

Step-by-step explanation:

Hey there!

1. 》 (√5)^2*(√3)^2

Cancel sqrt and square.

[tex]5 \times 3[/tex]

= 15

2.

[tex] = { (\sqrt[ 3]{9} )}^{3} \times ( { \sqrt{30}) }^{2} [/tex]

Cancel sqrt and square and also cubeoot and cube.

[tex]9 \times 30[/tex]

= 270

Hope it helps....

Answer:

5

Step-by-step explanation:

Natalie

100 + 10x

Her sister

25 + 25x

Where

x = number of months

Equate Natalie and her sisters equation

100 + 10x < 25 + 25x

100 - 25 < 25x - 10x

75 < 15x

Divide both sides by 15

x < 75 / 15

x < 5

Answer:

D= −50t + 300

Step-by-step explanation:

Since Dominic lives 300 miles from City A, when he starts his trip (at time

t=0), his distance from City A must be 300 miles, meaning D=300 when

t=0, which is the y−intercept.

                                    (0,300) is a point on the graph

Since Dominic will drive 50 miles per hour, the Dominic's distance from City A decrease 50 miles for each hour of driving, making the slope of D equal to

−50.

                                                   Slope=−50

                          equation of the line: D= −50t + 300

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

The equation for D, in terms of t, represents Dominic's distance from City A t hours after leaving his house.

D = 300 - 50t

Where t= number of hours

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x = 4 is an equation.

We have,

Distance between Dominic's house and City A = 300 miles

Speed = 50 miles per hour.

The equation for D, in terms of t, represents Dominic's distance from City A t hours after leaving his house.

D = 300 - 50t

Where t= number of hours

Now,

We can see that,

At t = 1, D = 300 - 50 = 250 miles.

At t = 2, D = 300 - 100 = 200 miles.

Thus,

The equation for D, in terms of t, represents Dominic's distance from City A t hours after leaving his house.

D = 300 - 50t

Where t= number of hours

Learn more about equations here:

https://brainly.com/question/17194269

#SPJ5

Answer:

61

Step-by-step explanation:

2(3)^3+4(3)-5

54+12-5

66-5

61

Answer:

21

Step-by-step explanation:

8.4x2.5=21

Nikki would run 21 miles in 2.5 hours.

I'd appreciate a brainliest, and I hope this helps. :)

Answer:

30.30

Step-by-step explanation:

Just count up by 2 each time.

Answer:

A) 7/8 cups  B) 4 3/8 cups

Step-by-step explanation:

1 3/4 = 7/4

7/4 cut in half is 7/8

7/4 doubled is 7/2

7/2 = 28/8

28/8 + 7/8 = 35/8

35/8 = 4 3/8

Answer:

Step-by-step explanation:

Given

Full recipe = 1 3/4 cups of rice

a) half of the recipe

b) 2 and one half time the recipe

3°

Hi there !

complementary angles = the sum of angles is 90°

a + b = 90°

a = 87°

b = 90° - 87°

b = 3°

Good luck !

Answer:

Depends

Step-by-step explanation:

How much is x worth?

Answer:0.63

Step-by-step explanation:

120°

180 - 130 = D = 50°

180 - (70+50) = 60°

then... 180 - 60 = 120°

Answer:

y = [tex]\frac{5}{4} x - 7[/tex]

Step-by-step explanation:

Step 1: Add -5x to both sides.

5x − 4y + −5x = 28 + −5x

−4y = −5x + 28

Step 2: Divide both sides by -4.

[tex]\frac{-4y}{-4} =\frac{-5x +28}{-4}[/tex]

y = [tex]\frac{5}{4}x -7[/tex]

Answer:

y=-  -5/4x-7 go to question 7

Step-by-step explanation:

y=-  (-5x+28)

         4

then simplify if you need more steps i will show

Answer:

100.50

Step-by-step explanation:

Answer:

Triangle has the greatest perimeter

Step-by-step explanation:

Triangle:

[tex]2\sqrt{48}=2\sqrt{2*2*2*2*3}=2*2*2\sqrt{3}=8\sqrt{3}\\\\\\3\sqrt{75}=3*\sqrt{3*5*5}=3*5*\sqrt{3}=15\sqrt{3}\\\\\\6\sqrt{12}=6*\sqrt{2*2*3}=6*2*\sqrt{3}=12\sqrt{3}\\\\\\2\sqrt{108}=2*\sqrt{2*2*3*3*3}=2*2*3*\sqrt{3}=12\sqrt{3}\\\\\\3\sqrt{147}=3*\sqrt{3*7*7}=3*7\sqrt{3}=21\sqrt{3}\\\\Perimeter=3\sqrt{147}+2\sqrt{108}+6\sqrt{12}+2\sqrt{48}+3\sqrt{75}\\\\ =21\sqrt{3}+12\sqrt{3}+12\sqrt{3}+8\sqrt{3}+15\sqrt{3}\\\\=(21+12+12+8+15)\sqrt{3}\\\\=68\sqrt{3}\\[/tex]

= 68 * 1.732 = 117.78

Square:

[tex]\frac{1}{3}\sqrt{63}=\frac{1}{3}\sqrt{3*3*7}=\frac{1}{3}*3*\sqrt{7}=\sqrt{7}\\\\Perimeter=4*side=4*\sqrt{7}=4\sqrt{7} = 4* 2.6458 = 10.58[/tex]

Rectangle:

[tex]\frac{1}{4}\sqrt{100}=\frac{1}{4}\sqrt{10*10}=\frac{1}{4}*10=\frac{5}{2}\\\\\\Perimeter=\frac{1}{4}\sqrt{100}+2\sqrt{48}+4\sqrt{75}+\frac{1}{4}\sqrt{100}+2\sqrt{48}+4\sqrt{75}\\\\=\frac{5}{2}+8\sqrt{3}+20\sqrt{3}+\frac{5}{2}+8\sqrt{3}+20\sqrt{3}\\\\=\frac{5+5}{2}+(8+8+20+20)\sqrt{3} \\\\=\frac{10}{2}+56\sqrt{3}+\\\\=5+56\sqrt{3}\\\\=5+56*1.732=5+96.99=102[/tex]

Answer:

  DNE

Step-by-step explanation:

The left limit is +1; the right limit is -1. These are different, so the limit does not exist.

Answer:

68.89 inches

Step-by-step explanation:

2.54 cm/in

175 divided by 2.54

Answer:15cm

Step-by-step explanation:

Answer:

You will be able to cut at least 6 pieces

Step-by-step explanation:

Answer:

x=6

Step-by-step explanation:

Basically since 6x and 2x have like terms you subtract the 2x from 6x.

6x-2x=4x

Then you divide 4 from 24.

4x=24

4x/4 = 24/4

x=6

Answer:

6x - 2x = 24

4x = 24

4x ÷ 4 = 24÷4

x = 6

Step-by-step explanation:

First of all subtract 2x from 6x which will give you 4x = 24

since you're finding x or want to make x the subject you are to divide both sides by 4, so

4x ÷ 4 will give you x, since both 4's will cancel out giving you x =, then you divide 24 by 4 also. 24 ÷ 4 will give you 6, so x = 6.

Very simple

Answer:

Tesla because it has no gas