Lisa’s test grades are 79, 89, and 90.

What is Lisa’s test average?

Answer:

2/7

Step-by-step explanation:

Fraction of children under 10 = 5000 / 17500 (without being simplified).

we can then simplify it to:

50 / 175 = 10/35 = 2/7

Hope this helps.

Please mark brainiest

Answer:

[tex]\frac{2}{7}[/tex]

Step-by-step explanation:

So we know there is a population of 17,500 and 5000 are children under the age of 10. We  want to find the the fraction of the children under 10 over the total population in it's simplest form so,

[tex]\frac{5000}{17500} =\frac{500}{1750} =\frac{50}{175}=\frac{2}{7}[/tex]

answer is 2.

x is divided by 28 and 7 is divided by x

after that cut 28 by 7

and the anwer will be x square = 4

and the square will go to 4

and four will be root 4

and the answer will be x = 2

Answer:

I think that y=17.5 when x=7

Answer:

The answer is 6x^2+9x-15

Answer:

6x^2 + 9x -15x

Step-by-step explanation:

This may seem hard, but it is actually very simple.

When you think of area, you think of multiplying.

The equation for this rectangle is: 3(2x^2+3x-5)

Why is 3(2x^2+3x-5) the equation?

You are basically multiplying the height (3) and all the widths (2x^2, 3x, and -5)

3 x 2x^2 is 6x^2.

3 x 3x is 9x (3 x 3 = 9)

-5 x 3x is -15x (5 x 3 = 15, plus the negative sign)

Now, you will combine the answers and get 6x^2 + 9x -15x

Answer:

the inverse is f^-1(x)=3x+6

Step-by-step explanation:

Answer:

Center → (1, -3)

Radius → 5 units

Step-by-step explanation:

Equation of the given circle is,

x² + y² - 2x + 6y - 15 = 0

Now convert this equation into the standard equation of the circle

x² - 2x + y² + 6y - 15 = 0

x² -2x + 1 - 1 + y² + 2(3)(y) + 9 - 9 - 15 = 0

(x² - 2x + 1) - 1 + (y² + 2(3y) + 9) - 9 - 15 = 0

(x - 1)² + (y + 3)² - 10 - 15 = 0

(x - 1)² + (y + 3)² = 25

(x - 1)² + (y + 3)² = 5²

By comparing this equation with the standard equation of the circle,

(x - h)²+ (y - k)² = r²

Where (h, k) is the center and r is the radius of the circle.

Center of the circle → (1, -3)

Radius of the circle → 5 units

Answer:

Step-by-step explanation:

3+5+2=10

3/10 x 300=£90

3/10 x300=£150

2/10 x300=£60

Mary receives £150

Answer:

46800

Step-by-step explanation:

46821 nearest 100s

look for the tens it is less than 5 so its 800 and the numbers written before the 100s would remain the same

Answer:

identity property of addition-

a+0=a

identity property of multiplication-

a*1=a

Step-by-step explanation:

i cant give u an exact answer as u didnt give Micheals answers so i just gave some examples about what addition and multiplication identity property should look like. Identity property's concept is to keep the same identity. Basically, "a" shouldnt change. In addition, to keep a the same all u hv to do is add 0 as anything plus 0 is the same. for multiplication, just multiply by 1. Hope this helps!!

Answer:

He should have added 0 to 8 and multiplied 1 by 8

Step-by-step explanation:

Answer:

hi

Step-by-step explanation:

srry

Answer:

Step-by-step explanation:

cause 100 cats can catch 100 bunnies in 300 min

Answer:

X=83°

Step-by-step explanation:

we use cosine law

(8²+16²-17²)÷(2×16×8)=cosC

0.121=cosC

we use cosine inverse to find an angle

cosine^-1 0.121= 83°

Answer:

The correct answer is a) (6, 3).

Step-by-step explanation:

The midpoint is determined in straight lines by subtracting the larger x-coordinate value and the smaller x-coordinate value. In this case, it is 10 - 2. You earn 8. Then, divide this answer by 2. So, you get 4. Finally, either subtract this from the larger x or the smaller x. You will earn 6. Since you are solving for a straight line, your y-coordinate will be the same as the others. Therefore, A is your answer.

The answer is (6,3)

please see attached picture for full solution

Hope it helps

Good luck on your assignment

Stay safe..

Answer:

The length and width of the rectangle are 23 m and 7 m respectively.

Step-by-step explanation:

P = 2L + 2W

P (perimeter of the rectangle) = 60 m

L (length of the rectangle) = 2 + 3W. W is the width of the rectangle

Therefore, L = 2 + 3W

P = 2L + 2W

60 = 2(2 + 3W) + 2W

60 = 4 + 6W + 2W

60 - 4 = 8W

56 = 8W

W = 56/8 = 7 m

L = 2 + 3W = 2 + 3(7) = 2 + 21 = 23 m

L = 23 m

W = 7 m

The required coordinate of the point N is (-5, -1). Option b is correct.

Given that,
Segment MN is drawn in the coordinate plane. Point M has coordinates (13,9) and the midpoint of MN is the point (4.4). What are the coordinates of point N to be determined.

Coordinate, is represented as the values on the x - axis and y - axis of the graph

Let the coordinate of point N is (x, y).
Here, point M has coordinates (13,9) and the midpoint of MN is the point (4.4).

The Coordinate of the midpoint is given as,
(4 = (x + 13)/2, 4 = (y + 9 )/2)
(x = 8 - 13, y = 8 - 9)
(x = -5 , y = -1 )
Coordinate of point N is (x, y) = (-5, -1)

Thus, the required coordinate of the point N is (-5, -1).

Learn more about coordinate here:

brainly.com/question/13498438

#SPJ2

Answer:

The last one

Step-by-step explanation:

Answer:

4 is the correct answer, I believe.

Reasoning:

The first line must be graphed with a constant y of 3, and stop before -2. Which it does on all 4 graphs.

The third line must, when extended, pass through point (0, -3). Only graph 1 and 4 follow that criteria, so it is not 2 or 3.

The second line's y-intercept must be 2, as well as begin at -2 and end before 2. Only graph 4 correctly plots this equation.

I hope this helps! :)

Answer:

a) y = 4x^2

Step-by-step explanation:

Because in a) y = 4x^2 the degree of equation is 2.

Answer:

Congruent angles have the same angle and side measure. Thus angle Q is 47 degrees and PR is 9 cm.

Step-by-step explanation:

Answer:

x = -3

y = 7

Step-by-step explanation:

x + 3y = 18

-3x - 12y = -75

multiply first equation by 4

4 × (x + 3y) = 18 ➡ 4x + 12y = 72

now add the two equations up

4x + 12y - 3x -12y = 72 - 75 (-12y will eliminate 12y)

x = -3

Answer:

x=2

Step-by-step explanation:

2.5(6x-4)=10+4(1.5+0.5x)

Distribute

15x -10 = 10 + 6 +2x

Combine like terms

15x -10 =16+2x

Subtract 2x

13x -10 = 16

Add 10

13x= 16+10

13x = 26

Divide by 13

13x/13 = 26/13

x =2

Answer:

x=2

Step-by-step explanation:

2.5(6x-4)=10+4(1.5+0.5x)

Distribute.

2.5*6x-2.5*4=10+4*1.5+4*0.5x

15x-10=10+6+2x

Combine like terms.

15x-10=16+2x

Add 10 to both sides

15x-10+10=16+10+2x

15x=26+2x

Subtract 2x from both sides.

15x-2x=26+2x-2x

13x=26

Divide both sides by 13

x=2

Answer:

117.00

Step-by-step explanation:

I = prt  where i is the interest , p is the principal r is the rate and t is the time in years

2 years 6 months is 2.5 years

I = 1200 * .039* 2.5

I =117

Answer:

Step-by-step explanation:

Attached is the sample space for rolling two dice

Answer:

B. 4 would be your answer.

Step-by-step explanation:

7 x 3 = 21

4 x 3 = 12

:)

Answer:

B. 4.

Step-by-step explanation:

Let the number be x then

x/7 = 12/21

Crossmultiply:

x = 7*12 / 21

x =  12 / 3 = 4.

Answer:if you are looking for the hypotenuse use Pythagoras theorem 17.2047

Step-by-step explanation:square both the base and height .Add their total then find the square root

Answer:

300 euros

Step-by-step explanation:

1200 x 5 x 5=30000/100=300

Answer:

£1531.53

Step-by-step explanation:

Times 1200 by 1.05 then times the new answer by 1.05 until done 5 times

Answer:

4 or 5

Step-by-step explanation:

Answer:

Step-by-step explanation:

let K be ken's number of marbles

K<10

Ken's number of marbles are fewer than Joe's number of marbles

Answer:

x <10

Step-by-step explanation:

Ken = x

Joe = 10

because  Ken has fewer marbles than Joe and Joe has 10

x <10

Answer:

Width: 2x+1

Step-by-step explanation:

Answer:

A: X=1

Step-by-step explanation:

If DE=2, and E to C is of the same line but is less than half of DE, it has to be the smallest number possible. 6(1)-8=-2

Answer:

B

Step-by-step explanation:

If they have no solutions, the lines must not intersect.

If they don't intersect, they must be parallel