1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dahasolnce [82]
3 years ago
15

A pile of sand has a weight of 90kg the sand is put into a small bag and a medium bag and a large bag in the ratio 2:3:7

Mathematics
1 answer:
Finger [1]3 years ago
3 0
90kg of sand had been puted in 3 bags but in 2+3+7=12 parts.
90kg/12=7.5kg
Small bag has 2 parts which is 7.5kg*2=15kg
Medium bag has 3 parts which is 7.5kg*3=22.5kg
Large bag has 7 parts which is 7.5kg*7=52.5kg
2:3:7=15kg:22.5kg:52.5kg
15kg+22.5kg+52.5kg=90kg
You might be interested in
What is the value of x?
Akimi4 [234]
(2x + 2) = (3x + -52)

Reorder the terms:
(2 + 2x) = (3x + -52)

Remove parenthesis around (2 + 2x)
2 + 2x = (3x + -52)

Reorder the terms:
2 + 2x = (-52 + 3x)

Remove parenthesis around (-52 + 3x)
2 + 2x = -52 + 3x

Solving
2 + 2x = -52 + 3x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-3x' to each side of the equation.
2 + 2x + -3x = -52 + 3x + -3x

Combine like terms: 2x + -3x = -1x
2 + -1x = -52 + 3x + -3x

Combine like terms: 3x + -3x = 0
2 + -1x = -52 + 0
2 + -1x = -52

Add '-2' to each side of the equation.
2 + -2 + -1x = -52 + -2

Combine like terms: 2 + -2 = 0
0 + -1x = -52 + -2
-1x = -52 + -2

Combine like terms: -52 + -2 = -54
-1x = -54

Divide each side by '-1'.
x = 54

Simplifying
x = 54
4 0
3 years ago
A pair of sneakers are $ 164.99 . They are 25 % off. With this discount, what is the sale price?
Ivanshal [37]

Answer:

Discount: $41.25

Sale price: $123.74

Step-by-step explanation:

Discount=(Original price)x((discount %)/(100))

164.99x(25/100)

164x0.25

=$41.25

Sale price= (original price) - (discount)

164.99 - 41.25

= $123.74

7 0
2 years ago
Can anyone help me pls ( if you can, can you do it on paper and post it with the answer)
Molodets [167]

Answer:

7=a

Step-by-step explanation:

look at image for step by step

4 0
2 years ago
Find the function value, f(4) if f(x) = 12x - 1
Scrat [10]

Answer:

f(4) = 47

Step-by-step explanation:

f(x) = 12x - 1

Let x = 4

f(4) = 12(4) -1

     = 48 -1

    = 47

4 0
3 years ago
Read 2 more answers
Please answer & explain how the answer was found
pshichka [43]

Answer: GEF = 30 DEF = 40

Step-by-step explanation: By angle summation we know the entire angle

GED = 70, so the smaller angles that make up GED (GEF and DEF) will have to sum up to equal GED. Using this we get:

2x + 10 + 5x - 10 = 70

From here we can combine like terms:

7x = 70

and solve for x

x = 10

Then we can plug the value of x back into the equations given to solve for GEF and DEF

GEF:

2x+10 == 2(10)+10 = 30

DEF:

5x-10 == 5(10)-10 = 40

3 0
2 years ago
Other questions:
  • I need help with twenty seven
    12·1 answer
  • Help QUICKLY.
    8·1 answer
  • Select the ordered pair that is not a solution to the equation 4x+3y= -12
    8·1 answer
  • W A field is shaped like the figure shown What is the area of the field Use 3.14 for 8 m
    12·1 answer
  • I don’t know what the anwsered would be i don’t understand this module
    6·1 answer
  • What are some good notes I can use to study for my algebra exam tomorrow?​
    6·2 answers
  • The radius of a circular track is 0.2 miles. Chloe ran around the track 3 times. How many kilometers did she run? Use 3.14 for p
    15·2 answers
  • The ratio of students to teachers at a school is 19 : 1. At this school, there are 400 people (teachers and students). How many
    6·2 answers
  • A study was designed to investigate the effects of two variables​(1) a​ student's level of mathematical anxiety and​ (2) teachin
    14·1 answer
  • Can some please help
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!