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
KATRIN_1 [288]
3 years ago
9

To make concrete it take 8 parts crushed gravel, 7 parts water and 5 parts cement mix. A worker needs to make 220 kg of concrete

. How much gravel, water and cement mix is needed.
Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
4 0

A complete load of concrete = 8 parts gravel + 7 parts water + 5 parts cement.

Total number of parts in every load = 8 + 7 + 5 = 20 parts

If total load = 220 kg, then       20 parts = 220 kg

Divide each side by  20 :             1 part = 11 kg

gravel   = 8 parts = 8 x 11 kg = <em>88 kg</em>
water    = 7 parts = 7 x 11 kg = <em>77 kg</em>
cement = 5 parts = 5 x 11 kg = <em>55 kg</em>

<u>Check:</u>    88 + 77 + 55 = 220         yay !


You might be interested in
I don’t know how to do that
julia-pushkina [17]
Number 3 is D, number 4 is B, number 5 is B
8 0
3 years ago
Can someone help me on this one please
Paul [167]

Answer:

x=-2

Step-by-step explanation

x+74+37+x+73=180

184+2x=180

-184        -184

2x=-4

x=-2

8 0
2 years ago
Shanice won 88 pieces of gum playing the bean bag toss at the county fair. That was 4 more than twice as many as Greg. How many
Kay [80]

Answer: 42 pieces of gum

Step-by-step explanation: 2x+4=88

4 0
3 years ago
What is three squared minus two thirds?
Tems11 [23]

three squared minus two thirds

3^2-\frac{2}{3}

three square = 3 x 3 = 9

\begin{gathered} 3^2-\frac{2}{3}=9-\frac{2}{3} \\ 3^2-\frac{2}{3}=\frac{9}{1}-\frac{2}{3} \end{gathered}

Least common factor of 1 and 3 is 3

\begin{gathered} 3^2-\frac{2}{3}=\frac{9}{1}-\frac{2}{3} \\ 3^2-\frac{2}{3}=\frac{27-2}{3} \\ 3^2-\frac{2}{3}=\frac{25}{3} \end{gathered}

Three squared minus two third is twenty five by three.

5 0
11 months ago
The figure below shows a shaded region and a non-shaded region. Angles in the figure that appear to be right angles are right an
scoundrel [369]

Answer:Area of part 1:

A1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

Area of part 2:

A2=length*width=(8+2)*1=10 ft2

Area of part 3:

A3=length*width=8*2=16 ft2

Total shaded area : A1+A2+A3=41 ft2

Total area of the reactangle : A=16*8=128 ft2

Total area of the nonshaded region : 128-41=87 ft2

Step-by-step explanation: Plz make brainliest

5 0
3 years ago
Other questions:
  • What is the particular solution to the differential equation
    5·1 answer
  • PLZZZZZ NEED HELP!!!!!!
    6·1 answer
  • Identify whether the given value of the variable makes the equation true.
    8·1 answer
  • Angels ABC and BCD are complimentary. Angel ABC has a measure of (2x+10) and angle CBD has a measure of 48 degrees. What is the
    13·2 answers
  • How do i do 4b - 7 - 15b + 3
    14·1 answer
  • 2x + 20 = -3x-25 <br> this is due in 20 minutes!
    6·2 answers
  • HELP PLEASE (i will give brainliest!)​
    6·1 answer
  • 24 is 4 times as great as<br> Pls help
    5·1 answer
  • Please help I need P factored completely <br> P(x)=x^4+50x^2+625
    15·1 answer
  • The sum of two numbers is 45. The larger number is one more than three times the smaller number. What are these numbers?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!