Cierto tipo de mezcla contiene 5kg de arena y 3 kg de cemento: un constructor necesita 12 toneladas de esta mezcla. ¿qué cantidad se necesita de arena y de cemento?

Answers

Answer 1

Answer:

the sand and cement needed is 7.5 kg and 4.5 kg respectively

Step-by-step explanation:

The computation of the sand and cement needed is shown below:

Given that

The mix of sand and cement is 5kg and 3kg i.e. its ratio is 5:3

And there is a 12kg of mix of both things

So individually it required

For sand = 12 × 5 ÷ 8

= 7.5 kg

For cement = 12 × 3 ÷ 8

= 4.5 kg

Hence, the sand and cement needed is 7.5 kg and 4.5 kg respectively


Related Questions

In ΔHIJ, the measure of ∠J=90°, the measure of ∠H=35°, and IJ = 72 feet. Find the length of HI to the nearest tenth of a foot.

Answers

Answer:

125.5 feet

Step-by-step explanation:

Solve these algebraic expression and make it them into one simplified expression
(There are two parts)

Answers

Step-by-step explanation:

Equation 1

[tex]\frac{m^2}{6} -\frac{9}{4m}\\\\ by\ taking\ LCM\\\\ \frac{2m^3-27}{12m}[/tex]

Equation 2

[tex]\frac{x^3}{w} -\frac{2}{wx^2}\\\\ by\ taking\ LCM\\\\ \frac{x^5-2}{wx^2}[/tex]

Rachel bought 15 packs of colored pencils with four pencils in each pack. She also
bought 32 packs of glitter pencils with two pencils in each pack. Write and evaluate an
expression to find the total number of pencils she bought.

Answers

Answer:

124

Step-by-step explanation:

15 x 4=60

32 x 2=64

64+60=124

Rachel bought a total of 124 pencils.

What is a numerical expression?

A numerical expression is algebraic information stated in the form of numbers and variables that are unknown. Information can is used to generate numerical expressions.

To find the total number of colored pencils Rachel bought, you can multiply the number of packs she bought by the number of pencils in each pack. Since she bought 15 packs of colored pencils with four pencils in each pack, the expression would be:

15 packs × 4 pencils/pack = 60 pencils

To find the total number of glitter pencils Rachel bought, you can use the same process. Since she bought 32 packs of glitter pencils with two pencils in each pack, the expression would be:

32 packs × 2 pencils/pack = 64 pencils

To find the total number of pencils Rachel bought in total, you would add the number of colored pencils to the number of glitter pencils. The expression would be:

60 pencils + 64 pencils = 124 pencils

Hence, she bought a total of 124 pencils.

To learn more about numerical expression click here :

https://brainly.com/question/6037813

#SPJ2

Find the angle of the least positive measure (in degrees, not equal to the given measure) that is coterminal with A.
A= -647°

Answers

9514 1404 393

Answer:

  73°

Step-by-step explanation:

A coterminal angle will be one that is this angle plus some multiple of 360°. We observe that the magnitude of the given value is between 360 and 720, so we can find the coterminal angle of interest by adding 720°.

  -647° +720° = 73°

The least positive measure angle coterminal with A is 73°.

Help please
Marking brainiest

Answers

Answer:

279 ft²

Step-by-step explanation:

A=bh

A=16x16

A=256

Subtract the area of island

A=bh

A=3x7

A=21

256-21=235

Then you have to find the area of the trapezoid at the top, which is a reactangle and then two smaller triangles

A=bh

A=10x4

A=40

A=1/2bh

A=4x1x1/2

A=2

Multiply it by two because there are 2 of them

2x2=4

40+4=44

The area of the main part is 235 and the area of the side section is 44.

Add them together

235+44=279 ft²

Estimate V106 to the
nearest integer.

V means square root

Answers

√106 is equal to approximately 10.29563
Rounded of to 10.3

Are the events "selecting a male" and "selecting a student who has green eyes" Mutually Exclusive?​

Answers

Answer:

no. there are 48 with both.

Leon brought chocolate and vanilla cupcakes to school for his birthday. 66 students picked a vanilla cupcake and 22 students picked a chocolate cupcake. What percentage of the students pickeda vanilla cupcake?​

Answers

Answer:

shjrthhyhshhscwjicsa

The first pizzeria in America opened in New York in 1905. The pizza recipe Came from Italy. Look at Italy's flag. What fraction of the flag is not red?

Answers

Answer:

2/3

Step-by-step explanation:

What is the value of x in the figure below? Round to the nearest tenth.
Х
18
52

Answers

Wdym? Is there a shape or is it a fraction

Is this a linear function or exponential function?
Day
1
2
3
4
5
Number of
1
12
23
34
45
Infected
People
O Exponential Function
O Linear Function

Answers

Answer:

linear function............

Frank borrowed money from his dad to buy a motorcycle. To repay his loan, Frank paid his dad $200 each month. After 14 months, his
remaining debt was $3,200.
• Rrepresents the remaining debt at a given time.
• L represents the original loan amount.
• T represents the time (in months).
Which THREE statements are correct?
A)
The original loan amount was $6,000.
B)
It will take Frank 16 months to pay back his dad.
C)
It will take Frank 30 months to pay back his dad.
D)
The equation R-L-200T can be used to model this situation.
E)
The equation L=R-200T can be used to model this situation.

Answers

Answer:

it is e

Step-by-step explanation:

Answer:

C, A, D

Step-by-step explanation:

The original loan amount was $6,000,

It will take Frank 30 months to pay back his dad,

The equation R = L − 200T can be used to model this situation.


Explain what it means to have a positive change, give an example.

Answers

making positive changes in eating habits may decide to also improve physical fitness the family need to send workbook 1988 making a few small positive changes will not on the boost your confidence for help you take control of managing the morning

WILL GIVE BRAINLIEST
Which data set has a variation, or a mean absolute deviation, similar to the data set in the given dot plot?​

Answers

Answer:

D

Step-by-step explanation:

A.P.E.X

SOMEONE PLEASE HELP ME WITH THIS PAGEEE FOR 15 POINTS

Answers

Answers:

In order:

x=35º, 50º, 91º, 118º, 42º, 104º, 112º, 130º, 40º

Step-by-step explanation:

For numbers 1,3,4,5, & 7, since the angles are same side interior, together they will add up to 180º. To find x, you subtract the given angle from 180º.

Example, #1: x=180-145, x=35º

For 2,6,8,9, since the angles are alternate interior, they will be congruent.

Example, #8: The given angle is 130º, so x will also be 130º.

I reccomend searching up alternate interior/exterior, same side interior/exterior, and corresponding angles on the internet.

Hope these are correct!

Square-based pyramid
AC = 10 cm
14 cm

Answers

try matway

Step-by-step explanation:

John feeds the wild birds in his garden with bird seed placed in three feeders. Two of these containers have the same capacity, each holding 300 grams of seed, whilst the third feeder holds 900 grams of seed. His seed storage bin contains 18 kilograms of seed. Because more birds can visit the large container, it takes the same amount of time to become empty as the smaller ones, and all three containers have to be refilled every second day. How many days will he be able to feed the birds for?

Answers

Answer:

6 days I think

Step-by-step explanation:

What shape does this cross section make?

Answers

Answer: A cross section is the shape we get when cutting straight through an object. The cross section of this object is a triangle. hope this helps. Can u give me brainliest

Step-by-step explanation:

Help me with this!!!

Answers

Answer:

-7

Step-by-step explanation:

− 2/3 a+ 5/6 a− 1/6 Combine like terms to create an equivalent expression.

Answers

Answer:

1/6a+-1/6

Step-by-step explanation:

Find the circumference of a circle with an arc length of 28.3 meters and its central angle for that are of 210 degrees.

Answers

Answer:

Step-by-step explanation:

you multiply 28.3 times 210

Please answer.
‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎

Answers

Answer:

image isn't loading for me :((( can you try replying to me w the question

EASY POINTS ASAP HELP

Answers

the answer is 10,5 i think

Answer:

y=-2/1+10

Step-by-step explanation:

Slope form is y=mx+b and the slope is negative due to the line going left and the y intercept is 10 because that is where the line goes through on the y axis

It takes one week for a crew of workers to pave 3/5 kilometer of a road. At that rate, how long will it take to pave 1 kilometer?

Answers

Answer:

1.67 weeks

Step-by-step explanation:

Let X= time it will take to pave 1 kilometer?

1 week=3/5 kilometer

X week =1 kilometer

Cross multiply

3/5 X= 1

3X= 5

X= 5/3

1.67 weeks

what does 10 = 4y equal to

Answers

69 ghcfhhggghjjohufdhhdjc

Answer:

Step-by-step explanation:

Simplifying

10 = 4y

Solving

10 = 4y

Solving for variable 'y'.

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

Add '-4y' to each side of the equation.

10 + -4y = 4y + -4y

Combine like terms: 4y + -4y = 0

10 + -4y = 0

Add '-10' to each side of the equation.

10 + -10 + -4y = 0 + -10

Combine like terms: 10 + -10 = 0

0 + -4y = 0 + -10

-4y = 0 + -10

Combine like terms: 0 + -10 = -10

-4y = -10

Divide each side by '-4'.

y = 2.5

Simplifying

y = 2.5

How would you solve this

Answers

Answer:

I don't know sorry but I think it's multipleucatuon

Find the product. Write your answer in scientific notation.

(7 x 10^-2) (8 x 10^5) =

Answers

Answer:

7×10^(-2)×8×10^5 = 56000

convert to scientific notation = 5.6 × 10^4

(scientific notation)

= 5.6e4

(scientific e notation)

= 56 × 10^3

(engineering notation)

(thousand; prefix kilo- (k))

= 56000

(real number)

Step-by-step explanation:

please help me before tomorrow

factor the trinomial
5w^2 – 6w +1​

Answers

Answer:

(5w-1) (w-1)

Steps:

5w^2-w-5w+1

w(5w-1)-(5w-1)

(5w-1) (w-1)

(5w-1) (w-1)

please i really need hel
p!​

Answers

Answer:

x=2-11y/3 hope this helps!

The waves created by two speed boats in a lake interact to form larger waves. This is an example of

constructive interference.
destructive interference.
absorption
transmission

Answers

Answer:

The answer is A. Constructive interference .

Step-by-step explanation:

I got it right on the Unit Test Review . Hope this helps <3 .

Answer:

A: Constructive interference

Step-by-step explanation:

Here is proof sorry im late but its extra proof its right give other person brainliest

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