The price of Maryam’s grocery bill was reduced from $80 to $60. By what percentage was her grocery bill reduced?

Answer:

D. 37

Step-by-step explanation:

f(5) = 8(5) - 3

f(5) = 40 - 3

f(5) = 37

Answer:

B

Step-by-step explanation:

4x=3y

x/y=3/4

Just like the photo I attached

If 4x=3y, then 3/4 is the ratio of x to y in the simplest form. Option B is correct.

The ratio of x to y can be determined by dividing both sides of the equation 4x = 3y by y:

4x/y = 3y/y

4x/y = 3

To express the ratio of x to y in simplest form, we divide both sides of the equation by 4:

x/y = 3 / 4

Therefore, the ratio of x to y in simplest form is 3/4. option B is correct.

To learn more on Ratios click:

https://brainly.com/question/1504221

#SPJ4

Answer:

(a+b)²-2ab

Step-by-step explanation:

First we need to factorize (a+b)²

(a+b)² = a² + 2ab + b²

(a+b)² = a²+b²+2ab

Subtract 2ab from both sides

(a+b)² - 2ab = a²+b²+2ab - 2ab

(a+b)²-2ab = a²+b²

Swap;

a²+b² = (a+b)²-2ab

Hence the expression of a² + b² is  (a+b)²-2ab

Answer:b if im not mistaken

Step-by-step explanation:

Answer:

[tex]h=25[/tex]

Step-by-step explanation:

From the question we are told that:

Velocity [tex]v=40fts[/tex]

The height h function

 [tex]\large h=-16t^2+40t[/tex]

Generally time t is mathematically given by

 [tex]h'=-32t+40[/tex]

 [tex]-32t+40=0[/tex]

 [tex]t=\frac{40}{32}[/tex]

 [tex]t=1.25[/tex]

Therefore  the ball's maximum height is given as

  [tex]\large h=-16(1.25)^2+40(1.25)[/tex]

 [tex]\large h=-16(1.25)^2+40(1.25)[/tex]

 [tex]h=25[/tex]

Answer: 42

Step-by-step explanation:

6(3+4)

6*7

42

Answer: 5/4

Step-by-step explanation:

4/6

just add the numerators and denominators

Answer:

D) Comutativa

Step-by-step explanation:

a+b=b+a (álgebra)

espero que te sirva mi ayuda

Answer:

10344.827586 basketballs

Step-by-step explanation:

A room measures 15 ft by 20 ft by 10 ft. If a basketball has a diameter of 9.6 inches, approximately how many basketballs will be needed to fill the room?

Step 1

We find the volume of the room

The room is rectangular in shape

Volume = Length × Width × Height

= 15ft × 20ft × 10ft

= 3000ft³

Step 2

Basket ball is spherical in shape

Volume of a sphere = 4/3πr³

Diameter = 9.6 inches

Radius = Diameter/2 = 9.6 /2 = 4.8 inches

Convert Radius from inches to ft

= 4.8inches/12

= 0.408333 feet

Volume of a sphere = 4/3 × π × 0.408333³

= 0.29 ft³

Step 3

3000 ÷ 0.29

10344.827586

Answer:

10^-5= 1/10^5

so option c is correct

Answer: We need 2.5 quarts of yellow paint.

Step-by-step explanation:

As per given, The ratio of blue paint to yellow paint is [tex]\frac34: \frac{5}{6}[/tex].

[tex]=3\times6:5\times4\\\\=18:20\\\\ =9:10[/tex]

Total green paint = [tex]4\frac34[/tex] quarts

Quantity of yellow paint required = [tex]\frac{10}{9+10}\times4\frac34[/tex]

[tex]=\frac{10}{19}\times\frac{19}{4}\\=\frac{5}{2}\\=2.5\ $$ quarts$$[/tex]

Hence, We need 2.5 quarts of yellow paint.

Answer:

5/3

Step-by-step explanation:

25^1/2/27^1/3

5/27^1/3

5/3

===========================================================

Explanation:

Angle PAQ is 90 degrees as the square marker indicates. The adjacent angle RAQ is also 90 degrees.

So overall, central angle PAR is 90+90 = 180 degrees. Arc PQR is 180 degrees which is a semicircle.

Answer:

2nd chioce

Step-by-step explanation:

Answer:

x <6

Step-by-step explanation:

bots these days i swear

Answer:

18.75%

Step-by-step explanation:

Given that

There is a group of 32 pupils

3 play the flute only

13 play the piano only

And, 10 play neither instrument

We need to find out the probability the student plays both instruments

So

= (32 - 13 - 10 - 3) ÷ 32

= 6 ÷ 32

= 0.1875

= 18.75%

Answer:

6/32 or 3/16

Step-by-step explanation:

13 add 10 add 3 = 26

32-26=6

the total amount of children is 32 so the number is 6/32

you can then simplify it to 3/16

hope this helps :)

Answer:

a = 27

b = 38

c = 19

Step-by-step explanation:

a + b + c = 84

b = 2c

a = 8+c

8+c +2c+c = 84

4c + 8 = 84

4c = 76

c = 19

b = 2(19) = 38

a = 8 + 19  = 27

Answer:

D

Step-by-step explanation:

Answer:its not D its A

Step-by-step explanation:

Its 10.4 you are correct

Answer:

Below.

Step-by-step explanation:

A. Required probability = 11/80.

B. 3700 * 11/80 = 508.75 so the predicted number would be 509.

Answer: [tex]7,5.66,39^{\circ}[/tex]

Step-by-step explanation:

Given

[tex]IJ=9\\\angle I=51^{\circ}[/tex]

from figure, we can write

[tex]\Rightarrow \sin 51^{\circ}=\dfrac{HJ}{9}\\\\\Rightarrow HJ=9\sin 51^{\circ}=6.99\approx 7[/tex]

[tex]\Rightarrow \cos 51^{\circ}=\dfrac{HI}{9}\\\Rightarrow HI=9\cos 51^{\circ}\\\Rightarrow HI=5.66[/tex]

In right angle trianle, the sum of the remaining two angles is [tex]90^{\circ}[/tex]

[tex]\therefore 51^{\circ}+\angle J=90^{\circ}\\\Rightarrow \angle J=90^{\circ}-51^{\circ}\\\Rightarrow \angle J=39^{\circ}[/tex]

Answer:

wheres the question? it just says what you said-

Answer:

Picture please

Step-by-step explanation:

I'll help you with math, is it 6th grade math?

Answer:

240

Step-by-step explanation:

in this circle you can fit in total 3 angles which a 120º

so you have one angle and you have 2 angles of 120 left so you would add them together which gives you the total of 240 º

hope that helps

please mark as brainliest if correct

thank you

Answer:

2m

Step-by-step explanation:

GCF of 8 and 18 is 2 and m is the only variable in both parts of the equation.

Answer: 0.4 or 4 i think

Answer:

Step-by-step explanation:

...

Answer:

72 ft^2

Step-by-step explanation:

area = length x width

1/2 x 8 = 3

3 x 24 = 72