Please help quick! Thanks! (NO LINKS!)

Answer:

[tex]Both \: the \: moon \: and \: earth \: are \: in \: \\ the \: shape \: of \: spheres. \\ Surface\: area \: of \: a \: sphere \: of \: radius \: 'r' \\ [/tex]

Let d1 be the diameter of the moon and d2 and be the diameter of the earth.Let r1 be the radius of the moon and r2 be the radius of the earth.

[tex]given \: d1 = \frac{1}{4}d2 \\ = > 2r1 = \frac{1}{4} ×2r2 \\ =>r1 = \frac{1}{4}×r2 \\ Now, \: ratio \: of \: \: their \: surface \: areas \: is: \\ = s1: s2 \\ = r {1}^{2}: r {2}^{2} \\ = {1}^{2 } : {4}^{2 } \\ =1:16[/tex]

hope it helps you

Answer:

210 Were First Graders

Step-by-step explanation:

35 percent of 600 is the same as 35 per hundred of 600. We can therefore make the following equation:

35/100 = X/600

To solve the equation above for X, you first switch the sides to get the X on the left side, then you multiply each side by 600, and then finally divide the numerator by the denominator on the right side to get the answer. Here is the work to illustrate:

35/100 = X/600

X/600 = 35/100

X*600/600 = 35*600/100

X = 21000/100

X = 210

The work above shows the long way to explain how to calculate 35 percent of 600 in order to give you a foundation and better understanding of how to calculate percentage. In the future, you could use this simplified formula:

(Y * P)/100

In our problem "What is 35 percent of 600?", Y is 600 and P is 35:

(600 * 35)/100 = 210

And once again you see that the answer is 210.

Answer:

210 kids

Step-by-step explanation:

So the formula is basically part over whole is equal to x/100%

So for here it would be x/600 = 35/100

Solve that and you will get 210

Answer:5. There are 32 more pupils in the Robotics Club than in the Art club.

Step-by-step explanation:

Answer:what

Step-by-step explanation::>

Answer:

(x + 60 + 30) * 2 = 200

(x + 90) * 2 = 200 multiply 2 inside parentheses

2x + 180 = 200 move 180 to the other side with changing it's sign

2x = 20 multiply by 2

x = 10 here is the answer

Step-by-step explanation:

Perimeter = (length + width) * 2

Hope this helps.

25.5

Step-by plantation:

283.50 divide by 14 = 20.25

then take 20.25 and add 5.25 = 25.5

multiply by 14 = 357 total without discount

Answer: Terry is 57 inches tall

Step-by-step explanation:

First, find the percentage . . . what is 75% of 76 ? 57

Answer:

14. decrease

15. divide 59.95 by 40

16. increase

Answer:

they are equivalent.

Step-by-step explanation:

to find equivalent fractions, we need to multiply the numerator and denominator of the first fraction by the same number. this creates an equivalent fraction. 5 goes into 15 3 times, and 8 goes into 24 3 times. this shows that if we multiply both the numerator and denominator of the first fraction by 3, then we end up with the second fraction, proving that they are the same. hope this helps!

5/8. Each one you multiply by 3 is gonna be 15/24. 5 is a common factor of 15 and 8 is the common factor of 24

Answer: the answer is x= 1

Step-by-step explanation:

So we are dealing with 11.50 - 11.50 + 1.15x = 12.65 - 11.50

our first step is Simplify both sides of the equation so:

11.5 + -11.50 + 1.15x = 12.65 + -11.50 turns into:

(1.15x) + (11.5+ -11.5)= (12.65 + -11.5)

**we know 11.5 + -11.5 will cancel each other since they are opposite**

so it will be 1.15x= 1.15

now the very last step is to divide 1.15x on both sides which gives us 1

Answer:

Positive 0.05

Step-by-step explanation:

[tex](-1,-.3) (1, -.2)[/tex]

[tex]m=\frac{-.2-(-.3)}{1-(-1)} =\frac{-.2+.3}{1+1} =\frac{0.1}{2} =0.05[/tex]

Hope this helps

Answer:

If 2 teams work together they can finish a job in 8 days. The rate of work of the first team is 5/8 of the rate of the second team. How many days each team needs to complete this job working alone.

Step-by-step explanation:

Answer:

1. 4/3 and 2. 2?

Step-by-step explanation:

I have no clue tbh

EXPLAIN:    [tex]\frac{8}{6}= \frac{4.2}{3.2} =\frac{4}{3}[/tex]            [tex]\frac{4}{3}[/tex] ÷ [tex]\frac{2}{3}[/tex] = [tex]\frac{4}{3}.\frac{3}{2} =\frac{2.2}{3}.\frac{3}{2}=2[/tex]

ok done. Thank to me :>

the answer is 10x

Solve for

x

by simplifying both sides of the equation, then isolating the variable.

x

=

10

Answer:

x = 5[tex]\frac{1}{4}[/tex]

Step-by-step explanation:

5(x - 3[tex]\frac{3}{4}[/tex] ) = 7[tex]\frac{1}{2}[/tex]

Use distributive property

5x - 18[tex]\frac{3}{4}[/tex] = 7[tex]\frac{1}{2}[/tex]

Add 18[tex]\frac{3}{4}[/tex] to both sides

5x = 26[tex]\frac{1}{4}[/tex]

Divide both sides by 5

x = 5[tex]\frac{1}{4}[/tex]

Answer:

a. False

b. True

c. True

d. I think it's true

e. False

Step-by-step explanation:

a. The unit rate is 19.75 gallons per minute

b. It is true because when x=0 y is also equal to 0, therefore it passes through the origin

c. 19.75 is about 20, and 20 multiplied by 5 is 100

d. Like I said before I don't know but I hope you get it correct ._.

e. When x=8 the equation would be 19.75*8 which is equal to 158 not 150

Answer:

1.5 m

Step-by-step explanation:

Area = length * width

or we can say

Area = side1*side2

since they are the same we can say

Area = side * side

which also means area = side^2

so we have the area and we want the side, we need the inverse operation for squaring something. the inverse of squaring something is square rooting

so

sqrt(Area) = side

so

side = sqrt(2.25)

= 1.5 m

I feel like i made a short story long but i hope it helped =)

Answer: The answer would be 950 international minutes. Only if assuming that this is in one month since the question doesn't give much detail.

Step-by-step explanation:

X would be used to represent the number of months.

25+0.10x=120

0.10x=95

950 international minutes used

Answer:

950

Step-by-step explanation:

An equation to model this scenario would be: y = 0.1x + 25

y would mean the amount of money paid depending on x, which is the number of minutes.

In this problem, we know the amount of money. So we know y is 120.

We can then put 120 into the equation to find x.

120 = 0.1x +25  

95 = 0.1x

x = 950

Therefore, x is 950.

Answer:

A

Step-by-step explanation:

First, I'm going to work out the hourly wages for the 2 weeks.

$8 x 70hours = $560

(8 x 7 = 56 x 10 = 560)

Next, work out the commision.

10% of $1612

1612 ÷ 10 = 161.2

Finally, add together both the hourly wages and commision.

161.2 + 560 = 721.2

Round it down to a whole number.

721 , Add on the dollar sign.

It's answer A, $721.

Answer:

[tex]8+6x(10-4)+2\\= 10 - 4\\= 6 + 2\\= 8 * (8 + 6x)\\ = 8 + 6x\\= 14x * 6\\= 84x\\[/tex]

Step-by-step explanation:

hope this helps.

Answer: bAKAKAKAKAKAKAKAK ✔

Step-by-step explanation:

Answer:

Here U Go

Step-by-step explanation:

Its exact value is defined as 299792458 meters per second (approximately 300000 km/s, or 186000 mi/s).

Hope it help

plz mark me as brainlist

Answer:

(20) (36) this is your answer bro

The mass of the container is 67.942 grams.

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that amount of sugar is 23.385 grams, the amount of soda is 12.873 and the total mass is 104.2 grams.

The weight of the container will be calculated as below:-

Total weight of sugar and sods = 23.385+12.873=36.258

Weight of container = 104.2-36.258=67.942

Weight of container = 67.942 grams

Therefore, the mass of the container is 67.942 grams.

To know more about an expression follow

https://brainly.com/question/2164351

#SPJ2

Answer:

3^4 x 3^2 = 729

Step-by-step explanation:

Answer:

[tex](3^4)*(3^2)=729[/tex]

Hope this helps.

Answer:

318125267

Step-by-step explanation:

-_-...............that is the answer

3.17 pounds of apples

   1.25 pounds of pears2

   2.56 pounds of oranges

add = 7.98

rounded = 7.42, (or anything close. I am really bad at rounding decimals)