8-1 and 1/2 show your work

Answer:

Speed=Distance÷time

speed=25km÷0.5hour=50km/h

Step-by-step explanation:

First you must convert minutes to hours (divide by60/ (÷60) ) to get 0.5

30÷60=0.5hours

Answer:

See explanations below

Step-by-step explanation:

Let the amount of nickel be x

Let the amount of pennies be y

Let the amount of quarters be z

If the the total value of the coins is 3.88, then;

x+y+z = 3.88 .... 1

If Anita has 4 more nickels than pennies, then;

x = y + 4 ... 2

If she has 2 more than 4 times the number of quarters than pennies, then;

y = 2 + 4z

4z = y-2

z = (y-2)/4 ...3

Substitute 2 and 3 into 1

y+4+y+(y-2)/4 = 3.88

4y+16+4y + y-2 = 15.52

9y + 14 = 15.52

9y = 15.52 - 14

9y = 1.52

y = 1.52/9

y = 0.17

Since x = y + 4

x = 0.17+4

x  = 4.17

z = y-2/4

z = 0.17-2/4

z = -1.83/4

z = - 0.46

The given center and point on the circle of (2, 3), and (5, 3), respectively

gives the equation of the circle as; [tex]\underline{(x - 2)^2 + (y - 3)^2 = 3^2}[/tex].

The general form of the equation of the circle is presented as follows;

(x - h)² + (y - k)² = r²

Where;

(h, k) = The center of the circle

r = The radius of the circle

Which gives;

(h, k) = (2, 3)

h = 2

k = 3

r = √((5 - 2)² + (3 - 3)²) = 3

The equation of the circle is therefore;

Learn more about the equation of a circle here:

https://brainly.com/question/502872

Answer:

A

Step-by-step explanation:

When dilating an object, you multiply the x and y values by whatever scale you want to dilate the object by. It cannot be C because 2/5 is less than 1, which means that the object would shrink. So the answer must be A

Answer: 24.9

Step-by-step explanation:

6.2 tan(76) = 24.86

Answer:

the answer is 24.9

Step-by-step explanation:

Answer:

36

Step-by-step explanation:

put in the values of m and m first then solve:

6•7= 42

3•2= 6

42-6= 36

hope this helps have a great day luv <3

Step-by-step explanation:

x = 24

Quadrilateral:

We have 94° + 41° + a + b.

Using 111°, we can do 180 - 111 and get 69°.

Now, we have 94° + 41° + 69° + b.

A quadrilateral's angles will equal 360°.

94 + 41 + 69 + b = 360°

204 + b = 360°

b = 156

Triangle:

Now, we can do 180 - 156 to find x.

x = 24

Hope this was helpful!

Answer:

Malcom used 3 pounds and 3 ounces of rice in the casserole

Answer:

108 cookies total

Step-by-step explanation:

19+89=108

Answer:

108

Step-by-step explanation:

Good Luck!

Answer:

a, b, e

Step-by-step explanation:

It is proportional since it goes at the same rate on the x and y

It has a rate of 8.5 since 17/2=8.5

at the rate of 8.5 y per one x then 4 8.5's would make 34

Answer:

-11/4

Step-by-step explanation:

The y intercept has the coordinates of (0,2)

We have two points (0,2) and (4,-9) so we can find the slope using

m= (y2-y1)/(x2-x1)

   = ( -9-2)/(4-0)

   = -11/4

Answer:

-11/4

Step-by-step explanation:

y = mx + c

Point (x,y)

intercept c

slope m

-9 = m(4) + 2

-9 = 4m + 2

make m the subject of the formula

4m = -9-2

4m = -11

divide both sides by 4

m = -11/4

Answer:

50% for each spinning green and red cards

Answer:

A) 10 units

Step-by-step explanation:

distance formula:

d=the square root of (x2-x1)^2 + (y2-y1)^2

(-5,4)

(3,-2)

d=the square root of (3-[-5])^2 + (-2-4)^2

d=the square root of 64+36

d=the square root of 100

d=10

Answer:

y,z,x

Step-by-step explanation:

Answer:

[tex]O = 14^\circ[/tex]

Step-by-step explanation:

Given

[tex]\angle Q = 90[/tex]

[tex]OP = 96[/tex]

[tex]PQ = 23[/tex]

Required

Find [tex]\angle O[/tex] to the nearest degree

To calculate O, we make use of:

[tex]sin(O) = \frac{PQ}{PO}[/tex] --- See attachment for triangle

[tex]sin(O) = \frac{23}{96}[/tex]

[tex]sin(O) = 0.2396[/tex]

Take arcsin of both sides

[tex]O = sin^{-1}(0.2396)[/tex]

[tex]O = 14^\circ[/tex] -- approximated

30° = 0.52

150° = 2.68

-220° = -3.34

Answer:

c

Step-by-step explanation:

Answer:

I think A or C

Step-by-step explanation: hope this was helpful

Answer:

500 milliliters

Step-by-step explanation:

Dylan has 0.5 liters of water. He needs to find out how many milliliters of water he has so he can complete his science experiment. How many milliliters (mL) of water does Dylan have

1 liter of water = 1000 milliliters of water

0.5 liters of water = x

Cross Multiply

x = 0.5 × 1000 milliliters of water

x = 500 milliliters of water

Therefore, Dylan has 500 milliliters of water

Answer:

answer

Step-by-step explanation:

Answer:

500 milliliters

Step-by-step explanation:

Dylan has 0.5 liters of water. He needs to find out how many milliliters of water he has so he can complete his science experiment. How many milliliters (mL) of water does Dylan have

1 liter of water = 1000 milliliters of water

0.5 liters of water = x

Cross Multiply

x = 0.5 × 1000 milliliters of water

x = 500 milliliters of water

Therefore, Dylan has 500 milliliters of water

Answer:

c

Step-by-step explanation:

Answer: c

Step-by-step explanation:

Answer:

the answer is D!

Step-by-step explanation:

y=60x+30 aka 210=60(3)+30

y=70x aka 210=70(3)

Answer:

x = 25

Step-by-step explanation:

The triangle is isosceles, therefore, the base angles are the same

62 + 2x + 9 + 2x + 9 = 180

62 + 4x + 18 = 180

4x = 180 - 62 - 18

4x = 100

x = 100/4

x = 25

Answer

128.86

Step-by-step explanation:

The box is 11x12 so 132.

The circles area is 3.14, or

A = πr^2 = π·1^2 ≈ 3.14159

So 132-3.14 is 128.86

Answer:

5

Step-by-step explanation:

3(x+3)=4(4+2)

3x+9=24

3x=15

x=5

Hope this helps :)

Step-by-step explanation:

Solution

9 − − 8

Answer:

The answer is 9x - y - 8z.

Step-by-step explanation:

1) Expand by distributing terms.

[tex] - (8x + 6y) + 17x + 5y - 8z[/tex]

2) Remove parentheses.

[tex] - 8x + 6y + 17x + 5y - 8z[/tex]

3) Collect like terms.

[tex]( - 8x + 17x) + ( - 6y + 5y) - 8z[/tex]

4) Simplify.

[tex]9x - y - 8z[/tex]

Therefor, the answer is 9x - y - 8z.

Answer:

The total would be $80.52. The tip was $12.28

Step-by-step explanation:

18% of 68.24 is 12.2832. I just rounded and called it 12.28. From there I just added it to 68.24 and got 80.52.

Answer:

39

Step-by-step explanation:

15 + 24 =39

since they are like terms so we can add or subtract