Emily and Mike are sister and brother. Emily has twice as many brothers as sisters, and Mike has as many brothers as sisters. How many girls and boys are there in this family?

Answer:

10.900km/h 11. a. 5:3 b. 3:5

Step-by-step explanation:

10. 2700/3=900

11. A. 5:3

b. 3:5

Answer:

use the top and bottom

Step-by-step explanation:

x-axis && y - axis

Answer:

Step-by-step explanation:

Key: So α is [tex]45:12[/tex] and β is [tex]45:18[/tex].

Proportionality means: "the quality of corresponding in size or amount to something else. the requirement of proportionality of punishment to offense"

the fact of a variable quantity having a constant ratio to another quantity."

Ok so now you have to answer the following question using that key.

1. False.

2.True

3.False

4.False

I hope this helps a bit.....I think I  got them right. :)

Answer:

2^2*3^2*5

Step-by-step explanation:

180

90 2

45 2

9 5

3 3

Answer:

7.8 x 10^-6 or 7.8E-6

Step-by-step explanation:

Answer: = 7.8 × 10-6

Step-by-step explanation: Hope this helps

Answer:

39.3

its simple

Answer:

60

Step-by-step explanation:

The required number is 60.

In mathematics, a percent is a number or ratio expressed as a fraction of 100. It is often denoted using percentage sign "%".

Now the given expression is,

4.5 is 7.5%

Let x be the number.

Therefore, 7.5% of x is 4.5

⇒ 7.5% of x = 4.5

⇒ 7.5% * x = 4.5

⇒ 7.5/100* x = 4.5

⇒0.075 x = 4.5

Dividing both side by 0.075 we get,

x = 4.5 / 0.075

Solving we get,

x = 60

this is the required number.

Thus,the required number is 60.

To learn more about Percentage visit :

brainly.com/question/24304697

#SPJ2

Answer:

Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.

Point Form:

(6,−7)

Equation Form:

x=6,y=−7

Step-by-step explanation:

Answer:

60% Hope this helped! :)

Step-by-step explanation:

Answer:

nonlinear

Step-by-step explanation:

The correct answer is nonlinear because of the 2x^2, it does not come out as a straight line

Answer:

h=200

Step-by-step explanation:

h/10+5=25

h/10=20

h=200

h/10 + 5 = 25

Subtract 5 from each side to get h/10 alone.

h/10 + 5 - 5 = 25 - 5

h/10 = 20

Multiply both sides by 10 to get h alone.

h/10 • 10 = 20 • 10

h = 200

h = 200. I hope this helps!

Answer:

x= 11.04

................

Answer:

42.5 miles

Step-by-step explanation:

68 : 8 = 8.5 km

8.5 x 5 = 42.5 miles

Answer:

it's the 2and answer because

Step-by-step explanation:

1,15 is not the same ratio of 2,24

Answer:

No, because 1:15 is not the same ratio as 2:24.

Step-by-step explanation:

2/24 reduces to 1/12 not 1/15 so these ratios are not the same.

Answer:

2.11

Step-by-step explanation:

3.5 x 2 + 9 = 16

10.4 - 1.4 x 2 = 7.6

16/7.6

= 40/19 or 2.11 to the nearest hundredth

Therefore the answer is 2.11

Answer:

2.11

Step-by-step explanation:

i took this myself

Answer: its the first one and the one before the last!

Step-by-step explanation: Hope this helps!!!

Answer:

I think the second one

Answer:

[tex]y=\frac{1}{2}[/tex]

Step-by-step explanation:

[tex]4(y+1)= \frac{3}{1-y}[/tex]

[tex]4y+4= \frac{3}{1-y}[/tex]

[tex](4y+4)(1-y)= 3[/tex]

[tex]4y(1-y)+4(1-y)=3[/tex]

[tex]4y-4y^{2} +4-4y=3[/tex]

[tex]-4y^{2}=3-4[/tex]

[tex]4y^{2}=1[/tex]

[tex]y^{2} = \frac{1}{4}[/tex]

[tex]y=\sqrt{\frac{1}{4} }[/tex]

[tex]y=\frac{1}{2}[/tex]

Answer:

Positive Correlation

Step-by-step explanation:

The graph shown as a positive correlation.

Two variables move in the same direction in a positive correlation.

You can also tell that the graph has a correlation that is positive because of the line moving in a upward direction from left to right.

Hope this helps.  

Answer:

the second one the positive correlation

Step-by-step explanation:

the x and y are both positive

The graph shown as a positive correlation.

Two variables move in the same direction in a positive correlation.

You can also tell that the graph has a correlation that is positive because of the line moving in a upward direction from left to right.

Hope this helps.  

Answer:

42y-48

Step-by-step explanation:

6 x 7

6 x 8

Answer:

D

Step-by-step explanation:

Hope this helps :D Hav a great day :P

Answer:

34

Step-by-step explanation:

Add w and x. Then take that answer and subtract it from 180.

w+x=146

180-146=34

Answer:

2x + 2

Step-by-step explanation:

LOLOL☝️answer is up there☝️LOLOL

Answer:

The answer is 19

Step-by-step explanation:

Range is the difference between the largest and smallest number, so in this case the largest number is 25 and the smallest number is 6. Subtract 25 and 6 to get the range. So the answer would be, The range of the following numbers is 19.

Step-by-step explanation:

For every increase in the x-value by 1,

the y-value decreases by -2.

(From 3 to 1 and from 1 to -1)

Hence, slope of line k

= Rise/Run = (-2)/1 = -2. (A)

Using it's formula, it is found that the slope of line k is of -2, hence option A is correct.

Given two points (x,y) on a line, the slope is given by the change in y divided by change in x.

In this problem, two of the points are: (1,3) and (2,1).

Hence, applying the division:

[tex]m = \frac{1 - 3}{2 - 1} = -\frac{2}{1} = -2[/tex]

The slope of the line is of -2, hence option A is correct.

A similar problem, in which the objective is also finding the slope, is given at https://brainly.com/question/14829050

Answer:

15x^2-14x-4

Step-by-step explanation:

(8x^2 * x-7x+2)+(7x^2 -7x-6)

you take out the parentheses

you add the common ones so -7x+-7x= -14x

8x^2 +7x^2 = 15x^2

and 2-6= -4

so in total it's 15x^2-14x-4

Answer: 11x^2 -16x-3

Step-by-step explanation:

Solution:

Your problem → (8x^2-7x+2) + (3x^2-9x-5)

(8x2-7x+2)+(3x2-9x-5)

=8x2-7x+2+3x2-9x-5

=8x2+3x2-7x-9x+2-5

=11x2-16x-3