All students in Ridgewood Junior High School either get their lunch in the school cafeteria or brought it from home on Tuesday. 10% of students brought their lunch. 41 students brought their lunch. How many students in total are in Ridgewood Junior High School?

Answer:

Without the math: 65 hours is 5 half-lives

13 hrs = 1/2

26 hrs = 1/4

39 hrs = 1/8

65 hrs = 1/32

(1/2)^5 = 1/32

400 mg / 32 = 12.5 mg   that is, after 5 half-lives

Answer:

i see how you feel but ._. i just aint good at math shawty

Step-by-step explanation:

A = 10 months

B = First part, the two equations:

Ian: y = 1000 - 60x, where x is the number of months and y is the remaining balance owed.

Ken: y = 600 - 20x.

They will be equal at 1000 - 60x = 600 - 20x

Second part: Solve the equation. Note, if you're equation is incorrect, solve it anyway because you will still get some credit!

1000 - 60x = 600 - 20x

1000 = 600 + 40x

400 = 40x

x = 10 months

y = 600 - 20(10) = 600 - 200 = $400 still owed.

C =

Solve Ian's equation for y = 0, when no money is owed.

1000 - 60x = 0

1000 = 60x

x = 16.66666.... or 17 months.

Ian will not be paid off 6 months after he and Ken owe the same amount. He will still owe money.

Alternatively, six months after 10 is 16 months,

and y = 1000 - 60(16) = 1000 - 960 = 40. He will still owe $40 at 16 months, so he is not paid off.

Answer:

3) never

Step-by-step explanation:

Because if both lines are the same then they will have infinite solutions in common.

Answer:

3- Never

Step-by-step explanation:

Answer:

You need to divide by the cost of children and adults by their per cost to total

Answer:

Base = 18 inches

Height = 54 inches

Step-by-step explanation:

The height of a parallelogram is three times its base. If the area is 972 square inches, what is the base and height?

The area of a parallelogram is given as:

Base × Height

Height = h = 3b

Area = 972 square inches

We substitute

972 = b × 3b

972 = 3b²

Divide both sides by 3.

b² = 972/3

b² = 324

b = √324

b = 18 inches

Solving for h

h = 3b

h = 3 × 18

h = 54 inches

Therefore,

Base = 18 inches

Height = 54 inches

Answer:

the answer is: 07:25 a.m.

Answer:

10 centenas de mil =  1000.000 unidades.

Step-by-step explanation:

Recordemos que 10 centenas es igual a 1000 unidades

Ahora, 10 centenas de mil seria un millon de unidades

Osea, 1000.000 unidades.

Espero te haya servido.

Answer:13.5

Step-by-step explanation:

Answer:

try answer C 33ft

Step-by-step explanation:

Answer:

x+5

Step-by-step explanation:

I thought what 2 numbers if multiplied made 15

also 2x+3 already has a 3

so I'm guessing 3 and 5

then I put them next to each other

(2x+3) ( +5)

I put a x in the second parenthesis as a guess because the area had a 2x^2 in it . that could only happen with 2x * x

so (2x+3) (x+5)

Answer:

coloquei a letra d- II, III e IV

Step-by-step explanation:

Answer:

é a letra D (II, III e IV)

Step-by-step explanation:

se você reparar no ângulo interno da figura do octógono está mostrando 135º e a primeira figura que no caso não encaixa mostra 60º, fazendo essa soma daria um total de 195º, o que passa de 180º que é a metade de uma circunferência, então não daria certo, ficaria uma parte sobrando, não se encaixando no mosaico.

Answer: 8.40 dollars worth of intrest

Step-by-step explanation:

Answer:

yes because Canada is american country

Answer:

25π

Step-by-step explanation:

i hope u hav a gud day ^_^

Answer:

area = 73.37 cm²

Step-by-step explanation:

area of circle:

A = π5² = 78.5 cm²

area of 80° segment:

(80/360)(78.5) = 17.44 cm²

area of isosceles triangle w/ 5 cm legs and 80° angle:

sin 40° = b/5

0.6428 = b/5

b = 3.214

base = 2(3.21) = 6.43   (we only figured for one-half of the base)

cos 40° = h/5

0.7660 = h/5

height = 3.83

A = 1/2(6.43)(3.83) = 12.31 cm²

area of unshaded part:

17.44 - 12.31 = 5.13 cm²

area of total shaded part:

78.5 - 5.13 = 73.37 cm²

Given:

Amy spent $90 at the store.

She spent [tex]\dfrac{1}{3}[/tex] of her money on food, [tex]\dfrac{1}{6}[/tex] of her money on school supplies, and [tex]\dfrac{1}{9}[/tex] of her money on soda.

To find:

How much did she spend on school supplies?

Solution:

According to the given information, Amy spend [tex]\dfrac{1}{6}[/tex] of her money on school supplies.

Amy spent $90 at the store. So,

Money spend on school supplies = [tex]\dfrac{1}{6}\times 90[/tex]

                                                        = [tex]15[/tex]

Therefore, Amy spend $15 on school supplies.

Answer:

hi

Step-by-step explanation:

x⁰+(x+90)⁰+(x-18)⁰=180⁰

3x+72=180

3x=180-72

3x=108

x=36

Q is equal to x+90=36+90=126

For cheking answer:

R is 36

Q is 126

P is 18

36⁰+126⁰+18⁰=180⁰

hope it helps

have a nice day

Answer:

[tex]x=96[/tex]

Step-by-step explanation:

[tex]360=x+\left(x+90\right)+\left(x-18\right)[/tex]

Step 1: Simplify both sides of the equation.

[tex]360=x+x+90+x-18[/tex]

[tex]360=(x+x+x)+(90+-18)[/tex] (Combine Like Terms)

[tex]360=3x+72[/tex]

Step 2: Flip the equation.

[tex]3x+72=360[/tex]

Step 3: Subtract 72 from both sides.

[tex]3x+72-72=360-72[/tex]

[tex]3x=288[/tex]

Step 4: Divide both sides by 3.

[tex]\frac{3x}{3}=\frac{28}{3}[/tex]

[tex]x=96[/tex]

Hope this helped! :)

Answer:

12:44, or if simplified 3:11

Step-by-step explanation:

In mathematics, a ratio indicates how many times one number contains another. For example, if there are eight oranges and six lemons in a bowl of fruit, then the ratio of oranges to lemons is eight to six (that is, 8∶6, which is equivalent to the ratio 4∶3). Similarly, the ratio of lemons to oranges is 6∶8 (or 3∶4) and the ratio of oranges to the total amount of fruit is 8∶14 (or 4∶7).

Answer:

3 : 11

Step-by-step explanation:

Total number of cows = 32 + 12 = 44

Brown cows : Total

12 : 44 =

3 : 11

Answer:

13

Step-by-step explanation:

13 is the right answer

Answer:

Down below

Step-by-step explanation:

[tex]Q=2u^2-5\\u=-3\\Q=(2*-3)^2-5\\Q=(-6)^2-5\\Q=36-5\\Q=31[/tex]

Note: wasn't sure if it was [tex]2u^2[/tex] or 2u*2. tell me and i will change it. this also may be wrong.

Answer:

six out of the fifteen are apples

Answer:

2×3×3×5

Step-by-step explanation:

2×

[tex]{3}^{2} [/tex]

×5

Answer:

15.70

Step-by-step explanation:

2×3.14×10(90÷360)=15.70

The length of the arc is 15,7 km

Form :

[tex] =2 \times \pi \times {r} \times \frac{ \alpha \degree}{360 \degree} \\ [/tex]

.

Solve :

[tex] = 2 \times \pi \times r \times \frac{ \alpha \degree}{360 \degree} \\ [/tex]

[tex] = 2 \times 3.14 \times 10 \times \frac{90}{360} \\ [/tex]

[tex] = 2 \times 31.4 \times 1 \times \frac{ \cancel{90}}{ \cancel{360}} \\ [/tex]

[tex] = \cancel2 \times 31.4 \times \frac{1}{ \cancel4} \\ [/tex]

[tex] = 31.4 \times \frac{1}{2} \\ [/tex]

[tex] = \frac{31.4}{2} \\ [/tex]

[tex] = 15.7 \: km[/tex]

.

#LearnWithBrainly

Answer:

Kids

Step-by-step explanation:

Because 62 percent of the kids preferred pencil when only 43 percent of the adults preferred pencils.

Answer:

B.12

Step-by-step explanation:

For your first draw you have 4 possible options, then on your second draw you have 3 possible options since you took out a pair. So to figure out the number of possible outcomes you simply multiply the possibilities by each other to get the number of possible outcomes.  

Answer:

r=2.5mm

Step-by-step explanation:

Using the formula

[tex]\huge\underline{ \sf \: Formulae \: to \: remember \: for \: solving \: the \: question:}[/tex]

[tex] \\{ \sf radius \: of \: a \: circle = \frac{d}{2} where \: d \: is \: the \: diameter \: of \: the \: circle}[/tex]

[tex]\huge\underline{\sf Given:}[/tex]

[tex] \ \: { \sf The \: diameter \: of \: a \: circle \: is \: 5 mm.}[/tex]

[tex]\huge\underline{\sf To \: find \: out:}[/tex]

[tex] \ { \sf Radius \: of \: the \: circle}[/tex]

[tex]\huge\underline{\sf Solution:}[/tex]

[tex] \\{ \sf The \: diameter \: of \: the \: circle \: is \: 5 \: mm.}[/tex]

[tex] \\{ \sf Therefore \: radius \: of \: the \: circle}[/tex]

[tex]\\{ \sf = \frac{5}{2} \: mm} [/tex]

[tex] \\{ \sf = 2.5 \: mm}[/tex]

[tex]\huge\underline{\sf Answer:}[/tex]

[tex]\\{\sf The \: radius \: of \: the \: circle \: is \: 2.5 \: mm.}[/tex]

Answer:

Final amount after 11 years = $4021.97

Step-by-step explanation:

We will use the formula to get the final amount after t years,

Final amount = [tex]a(1+\frac{r}{n})^{nt}[/tex]

here a = Initial amount

r = Rate of interest

n = Number of compounding in a year

For Initial amount 'a' = $1500

r = 9%

t = 11 years

n = 12 [Compounded monthly]

F = [tex]1500(1+\frac{9}{12})^{12\times 11}[/tex]

  = $4021.97

Answer:

ACB

Step-by-step explanation:

Answer:

$15

Step-by-step explanation:

370-40=330

12+10=22

330÷22=15

15*22=330

Answer:

It’s 4.2

Step-by-step explanation: