(1) The ratios 18:3 and 6:1 are equivalent. Why?

Answer:

D

Step-by-step explanation:

If im inncorect you can check this with "Mathaway"

Answer: D

Hope this helps!

Answer:

227.5

Step-by-step explanation:

65 mhp

after 3.5 h

Just multiply

65 x 3.5 = 227.5

Answer:

227.5

Step-by-step explanation:

multiply 65 mph to 3 1/2 [3.5 (estimated)] to calculate the distanbce travelled

Answer:

30 kilometers

Step-by-step explanation:

Answer:

1 hour

Step-by-step explanation:

We are given that

Day       Hours

Sunday    0

Monday   1.5

Tuesday    2.5

Wednesday  2.5

Thursday       3

Friday            0

Saturday       n

Mean number of hours of  study per day=1.5

Mean=[tex]\frac{sum\;of\;data\;}{total\;number\;of\;data\;points}[/tex]

Total number of days=7

Using the formula

[tex]1.5=\frac{0+1.5+2.5+2.5+3+0+n}{7}[/tex]

[tex]1.5\times 7=9.5+n[/tex]

[tex]10.5-9.5=n[/tex]

[tex]n=1[/tex]

Hence,  number of hours you need to study on Saturday=n=1

Answer:

3/2

Step-by-step explanation:

1-2x+5=4x-3

1-2x-4x+5=-3

1-6x+5=-3

-6x+6=-3

-6x=-3-6

-6x=-9

6x=9

x=9/6

simplify

x=3/2

Answer:

x=1.5

Step-by-step explanation:

combining everything: -2x+6=4x-3

adding 2x to both sides, you get

6=6x-3

add 3 to both sides, you get 9=6x

divide, and then you get 1.5

uwu

Step-by-step explanation:

cos theta=3/5

theta=53.13°

tan theta =1.33

That depends on what you mean by a "way" of having children. Some of the more obvious answers: One. Four boys and four girls, there's no other way of getting that many boys or that many girls. 40320. Usually each child has its own distinct DNA. The information in DNA can be converted into a number, and there are 8-factorial = 8! = 40320 orderings for eight numbers. 70. If each boy is considered to be the same until it is born and then named, so that the first four boys will always be named the same way and the same for the girls, then you can find the number of ways using binomial coefficients. The number of ways of arranging four equal boys and four equal girls into an order, is the same as the number of ways of choosing four numbers from 1 to 8 representing the position of the boys in that order. The number of ways of choosing a set of 4 numbers from 8 is called "8 choose 4" sometimes written 8C4 and is calculated as (8*7*6*5)/(4*3*2*1) (The numererator product in nCr stops when you have r numbers) (8*7*6*5)/(4*3*2*1) = 70

Answer:

As parents have 5b and 3 g

so if we add them it becomes 8

hence family has 8 children

Answer:

58y is the correct answer to this question

Answer:

84

Step-by-step explanation:

Let the third term be x.

So, the numbers will be:

24, 36, x, 126

Since, all the four terms are in proportion.

Therefore,

[tex] \frac{24}{36} = \frac{x}{126} \\ \\ x = \frac{24 \times 126}{36} \\ \\ x = \frac{3,024}{36} \\ \\ x = 84[/tex]

Answer:

this is clear that answer

Answer:

1 and 1

Step-by-step explanation:

Answer:

x = 1  and y = 1

Step-by-step explanation:

This is a system of equations. To solve it, you need to get one of your variables by itself first. (that means getting the x, or y by itself, just like how you solve equations when you only need to solve for one variable). I decided to solve the first equation, which is -x - 2y = -3 I'll solve it for the x, since there is no number being multiplied to it.

Answer:

3/5

Step-by-step explanation:

Answer:

The mean is 8.4

Step-by-step explanation:

First you find the class centers.

3-6 = 4.5

7-10 = 8.5

11-14 = 12.5

15-18 = 16.5

The sum of all the scores = 4.5 * 7 + 8.5 * 10 + 12.5 * 6 + 16.5 + 2 = 210

The sum of the number of scores = 7 + 10 + 6 + 2 = 25

The mean = 210/25 = 42/5 = 8.4

Answer:

I'm only here cause of the pfp haha

Step-by-step explanation:

you look good if that's you

Answer:

a) $53.34

b) 84,360.9 gallons

Step-by-step explanation:

let 'x' = cost of bill for 30,000 gallons

a) i set up a proportion as follows:

$1.33/748g = x/30,000

i cross-multiplied and got $53.34

b) i set up a proportion as follows:

let 'y' = how many gallons $150 can buy

$1.33/748g = 150/y

i cross-multiplied and got 84,360.9 gallons

Answer:

-20(y-3)/3

Step-by-step explanation:

The expression can be written simplified as 6x - 4y + 12.

Algebraic expressions are mathematical statements with a minimum of two terms containing variables or numbers.

The expression is given as:

3(6/5x+4y+6)-2(9/5x+8y+3)​

To simplify the expression, we need to use the rules of algebra to combine like terms and perform the necessary operations in the correct order.

First, we can distribute the 3 and the -2 to the terms inside the parentheses:

3(6/5x+4y+6) - 2(9/5x+8y+3)

= 18/5x + 12y + 18 - 18/5x - 16y - 6

Next, we can combine like terms:

= 18/5x - 18/5x + 12y - 16y + 18 - 6

= 6/5x - 4y + 12

Finally, we can simplify the fraction by dividing the numerator and the denominator by their greatest common divisor, which is 1:

= (6/1) / (5/1)x - 4y + 12

= 6x - 4y + 12

Therefore, the simplified expression is 6x - 4y + 12.

Learn more about the algebraic expression here :

brainly.com/question/21751419

#SPJ2

Answer:

78? pls correct me if I'm wrong

Step-by-step explanation:

Length times Width equals Area.

6.5×12=78

Answer:

anywhere within 13.5 < cm < 14.5   ie) 13.7cm

Step-by-step explanation:

Pythagoras for all diagonals or right angle sides.

12^2 + 6.5^2 = c^2

sqrt 144 +  sq rt 42.25 = c^2

c^2 = sq rt 186.25 =  13.6473441  = 13.7cm

nearest 10th of a cm = 13.5<cm<14.5

Answer:

it increased 50%

Step-by-step explanation:

5 / 2.5 = 2

100 / 2 = 50%

Answer:

50% increase

Step-by-step explanation:

half of 5.00 is 2.50

Answer:

x = 10 and y = 7

Step-by-step explanation:

Equalateral triangle means all sides are equal.

x = 10,  easy

make y + 3 = 10

y = 7

Easy, no real math needed. lol

Answer:

let the rati be x

2x=8

x=4sweets

beth=3x=3×8=24 sweets

Step-by-step explanation:

plz make me brainliest

Answer:

c

Step-by-step explanation:

Since area is lw  3*3=9

Answer:

888 + 88 + 8 + 8 + 8 = 1000

simple

Answer:

-3[tex]\leq \\[/tex]2n-5[tex]\leq[/tex]15

Step-by-step explanation:

Answer:

f

Step-by-step explanation:

Answer:

Angle JKM = ANGLE JKL - MKL

= 155 - 39

= 116

Answer:

Amy traveled at 4.5 mph, while Jim traveled at 6 mph. Therefore, Jim traveled at a greater average speed.

Step-by-step explanation:

Given that Amy drove her hoverboard 3 miles in 40 minutes, while Jim hopped 2 miles in 20 minutes, to determine who traveled at a greater average speed, the following calculation must be performed:

(3/40) x 60 = Amy's speed

0.075 x 60 = Amy's speed

4.5 = Amy's speed

So Amy traveled 4.5 miles per hour.

(2/20) x 60 = Jim's speed

0.1 x 60 = Jim's velocity

6 = Jim's speed

Instead, Jim traveled 6 miles per hour.

Therefore, Jim was the one who traveled at a greater average speed.

Answer:

Step-by-step explanation:

Use Pythagorean's Theorem for a right triangle. Your best bet when learning/visualizing word problems is to draw a picture, then learn how to visualize in your head over time.

[tex]3^2+x^2=12^2\\9+x^2=144\\x=\sqrt{135}[/tex]

The radical can be further simplified because 135 is the product of 9 and 15. 9 has a perfect root of 3.

[tex]x=3\sqrt{15}[/tex] meters or 11.62 meters

Answer: 5(1-x) over x

Step-by-step explanation: Combine the rational expressions using the least common denominator (LCD).

Answer:

Pythagorean theorm

Step-by-step explanation:

A^2+B^2=C^2

c is the long line, a and b are the outside lines

Answer:

[tex]Ratio = 2:3[/tex]

Step-by-step explanation:

Given

[tex]Cards = \{2,5,7,8,9,11\}[/tex]

Required

Ratio of odd numbers to total

First, list out the odd numbers

[tex]Odd = \{5,7,9,11\}[/tex]

The card has 4 odd numbers out of a total of 6.

So, the ratio is:

[tex]Ratio = Odd : Total[/tex]

[tex]Ratio = 4:6[/tex]

Divide by 2

[tex]Ratio = 2:3[/tex]

Hence, the ratio of odd to total is 2 to 3