Mathematics College

In an art class, 40% of the members are boys. 20% of the boys and 50% of the girls have learnt how to play a piano. If there are 150 members in the class, how many members have learnt to play piano? ​

Answers

Answer 1

Answer:

57

Step-by-step explanation:

Related Questions

What are the 3 equivalent fraction 75/100

Answers

Answer:

3/4

Step-by-step explanation:

Find the GCD (or HCF) of numerator and denominator. GCD of 75 and 100 is 25.

75 ÷ 25100 ÷ 25.

Reduced fraction: 34. Therefore, 75/100 simplified to lowest terms is 3/4.

Answer:

three equivalent fractions to 75/100 are 3/4 , 6/8 , & 12/16

How do you solve this please help it's worth 50 points

Answers

Try this option, if it is possible, check the suggested solutions/answers in other sources.

All the answers are underlined with red colour.

A shipping tube is shaoed like a triangular prismi

Answers

Answer:

please be more specific

Step-by-step explanation:

A isosceles triangle
B right triangle
C equiangular triangle
D equilateral triangle

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The anwser is question b. There is a 90 degree angle
right angle triangle

please follow me

Find the 59th term of the arithmetic sequence 26, 17, 8, ...26,17,8,...

Answers

Answer: the 59th term is -496.

Step-by-step explanation:

2. Roman's allowance a week is P250.75. If he will save p50.00 and
equally divide the rest into 5, how much will he spend a day?​

Answers

Answer:

50.15

Step-by-step explanation:

250.75-50=200.75

200.75/5=50.15

Show your work to get full credit. Solve the following problem with any method you want.

1.5 x 32

Answers

Answer:

48

Step-by-step explanation:

 1.5

x 32

1.5
X 32
———
30
+ 450
———
48.0

One equation in a system is y = 1/2x - 2

a. Write a second equation so that the system has one solution.

b. Write a second equation so that the system has no solution.

c. Write a second equation so that the system has indefinitely many solutions.

Answers

A) y=-2x-5
B) y= 1/2x+4
C) y= 1x-4

Write the equation in standard form using integers.

Answers

Answer:

it would be:

3x-4y=-8

Step-by-step explanation:

Can someone help me please. I will cash app you or PayPal if you have , or any other way to pay you. Thanks.

Answers

Answer:

All rewrited would be 1. 10 to the power of three would be simplified into 1,000/1,000. 2 to the power of 5 would be simplified into 32/32. The repeated multiplication for 10 to the power of three would be 10 x 10 x 10 / 10 x 10 x 10. 2 to the power of 5 in repeated addition would be                                              2 x 2 x 2 x 2 x 2 / 2 x 2 x 2 x 2 x 2

Which ordered pair is a solution of the equation: y = x + 3 a) (-2,5) b) (3,0) c) (8, 11)​

Answers

Answer:

C) (8, 11)

Step-by-step explanation:

8+3=11.

The volume of a cuboid is 189cm3.
The length is 7cm and the width is 9cm.
Work out the height of the cuboid.

Answers

The height of the cuboid is 3cm. 7x9x3 = 189
Volume = Length x Width x Height

Volume of cuboid:
Let h cm be the height of the cuboid.

7 x 9 x h = 189

63h = 189

h = 189/63

h = 3


The height of the cuboid is 3 cm.

When bungee jumping, you reach a positive elevation on your first jump that is 50 1/6 feet greater than the elevation you reach on your second jump. Your change in elevation on the first jump is -200 2/3 feet. What is your change in elevation on the second jump?
Im giving 50 points cause i really need help

Answers

Answer:

-301/2=−150.5

Step-by-step explanation:

Hope this helps.

How do you find the term in a Aromatic sequence

Answers

a
n
​
= the term that you want to find

a
1

​
= first term in the sequence


n = the term position (ex: for 5th term, n = 5 )

d

d = common difference of any pair of consecutive or adjacent numbers

Answer:

An =A1+(n-1)d

Step-by-step explanation:

the nth term of an arithmetic sequence is :

An =A1+(n-1)d   ....a common difference is : d

A1 is the first term

Please anyone need help on this

Answers

Answer:

2√5

good luck, i hope this helps :)

2^5 I think that’s what it is hope this can help

Charlene and Gary want to make a perfume
2.39 2.58 2.17

Answers

Answer:

What is the question?

Step-by-step explanation:

Video Store A charges $8 to rent a video game for one week. Although only members can rent from the store, membership is free. Video Store B charges only $4 to rent a video game for one week. Only members can rent from the store and membership is $84 per year. After how many video game rentals will the total amount spent at each store be the same?
a) Write an equation to model the problem. Let x represent the number of video game rentals.
b) Solve the equation to find to answer the question. (Note: Include the units , which in this case is "rentals"; for example, if you find of a solution of 29, write: 29 rentals.)
​

Answers

Answer:

21 rentals

Step-by-step explanation:

Video Store A = 8x

Video Store B = 84 + 4x

x = number of video game rentals.

After how many video game rentals will the total amount spent at each store be the same?

Video Store A = Video Store B

8x = 84 + 4x

8x - 4x = 84

4x = 84

x = 84/4

x = 21 rentals

What is the value of x?
What is the measure of angle A?
What is the measure of angle B?
What is the measure of angle C?

Answers

1. 2x + 20 + x + 10 + 2x - 5 = 180
5x + 25 = 180
5x = 155
x = 31 degrees

2. A = x + 10
A = 31 + 10
A = 41 degrees

3. B = 2x + 20
B = 62 + 20
B = 82 degrees

4. C = 2x - 5
C = 62 - 5
C = 57 degrees

Answer:

∠A =  41

∠B = 82

∠C  = 57

Step-by-step explanation:

Sum of all the angles of triangle = 180

x + 10 + 2x -5 + 2x + 20 = 180

x +2x +2x + 10 - 5 +20 = 180     {Combine like terms}

5x + 25 = 180

         5x = 180 - 25

         5x =155

          x = 155/5

         x = 31

∠A = x + 10 = 31 + 10 = 41

∠B = 2x +20 = 2*31 + 20 = 62 + 20 = 82

∠C = 2x - 5 = 2*31 - 5 = 62 - 5 = 57

a ratio table! need help asap!!! Time (secs): | 4 | 8 | 12 | 16 | 20 | Distance (miles): - the bottom row is empty and i need help to fill it - #b

Answers

There is missing information required in order to find the solution. I need the satellite speed

PLEASE HELP ME ILL MARK YOU BRAINLY!!

Answers

Answer:

No

Step-by-step explanation:

no because it doesn't pass the horizonal line test

A toy train has 8 compartments and an engine that is 8 inches long. Each compartment is 4 inches long. Each compartment is joined by links that are 3 inches long. How long is that train.

Answers

Answer:

64in

Step-by-step explanation:

links=8*3=24

compartments + engine=4*8+8=40

40+24=64

I need help with these questions

Answers

Answer:

(2nd question, asking about height)  

8cm or 0.08m

Step-by-step explanation:

1.43m - 143cm

(1m = 100cm)

143cm - 135cm = 8cm

Answer:

445mm & 44.5cm

Step-by-step explanation:

155mm - 15.5cm

(1mm = 0.1cm)

15.5 + 16 + 13 = 44.5cm

44.5cm - 445mm

Answer:

1) 18.3m-16.5m=2.8m

2) 1.43m-135cm=0.81m

3) 0.16m+1.55m+0.13m=0,84m or 84cm

4)-

5)-

Step-by-step explanation:

2)cause 135cm is 1.35m

The Denver Post reported that, on average, a large shopping center had an incident of shoplifting caught by security 2.3 times every four hours. The shopping center is open from 10 a.m. to 9 p.m. (11 hours). Let r be the number of shoplifting incident caught by security in an 11 -hour period during which the center is open.

Answers

Answer:

9 hours

Step-by-step explanation:

y = x^2 + 4x - 5
I need to know if it is maximum or minimum , the axis of symmetry , the vertex , domain , range ​

Answers

Answer:

i honestly have no idea

Step-by-step explanation:

Answer:

The coefficient of x^2 is positive (here it is 1) so we have a minimum.

Rearrange it to the form (x-a)^2 + b:

(x+2)^2 - 4 - 5 = (x+2)^2-9

This means the minimum, or vertex, is at (-2,-9)

Parabolas are symmetrical horizontally, so the axis of symmetry is the vertical line at the minimum, which is x = -2

The domain is all numbers

The range is y >= -9

Helppp (7th grade)

_inches

Answers

Answer:

h = 8 inches

Step-by-step explanation:

Since these shapes are similar and one side of the bigger shape is double the other side (44 is the double of 22), to find side h, you have to multiply 4 by 2 (It's the same relationship between the two sides of similar shapes). 4 times 2 is equal to 8, which is your answer.

What is the area of this figure ?

Answers

Answer:

52920cm

all you have to do is multiply all the numbers together.

sorry if its wrong.

but hope it helps.

have a great day.

Answer:

102

Step-by-step explanation:

area of the square (36) plus the area of the trapezoid (66)

1
Rectangle RSTU is reflected across the y-axis to form rectangle R'ST'U'.
Y
.
R
S
7
3
2
2
1
-1
-2
U
T
-
Which statement is NOT true?
A
The corresponding angles of rectangle RSTU and rectangle R'ST'U' are
congruent.
B
The perimeter of rectangle RSTU is greater than the perimeter of rectangle
R'S'T'U'.
с
The corresponding sides of rectangle RSTU and rectangle R'S'T'U' are
congruent.
D
Rectangle RSTU is similar to rectangle R’ST'U'.

Answers

Answer:

c

Step-by-step explanation:

what is the answer please i need help

Answers

Answer:

Step-by-step explanation:

x - 0.35x = (1 - 0.35)x

              = 0.65x

1.00 (-)

0.35

0.65

What is 56x2
Just a regular normal question from me
Your welcome in advance

Answers

Answer:

112

Step-by-step explanation:

hope this helps

Find the unit rate.
jacob walks 3 1/2 miles in 1 3/4 hours
how many miles jacob can walk per hour

Answers

Convert both fractions into pure fractions so 3 1/2 becomes 7/2 and 1 3/4 becomes 7/4 now divide 7/2 by 7/4 which is 2. So jacob can walk 2 miles per hour
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