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Talja [164]
3 years ago
12

To make concrete, 2 parts cement is mixed with every 5 parts of sand. write down the ratio of cement to sand.

Mathematics
1 answer:
aliina [53]3 years ago
7 0

The answer would be 2:5 because there is 2 parts of cement and 5 parts of sand and they want to know the ratio of cement to sand

A ratio is simply comparing something and it compared the cent to the sand which is 2:5 or you can right it as 2 to 5 or 2/5 as a fraction

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Mike has $75 to spend at a local model car show the entrance price for the show is $20 at one seller stand Mike find a model car
NemiM [27]

mike can afford 7 model cars

4 0
3 years ago
Athena is trying to drink more water, so she has been keeping a log of how much water she drinks. Two days ago, Athena drank 80
monitta
Hello There!

Percentage increase or decrease = difference of values / original value.  x 100
Percentage decrease = 80 - 76/80
80 - 76 = 4
4/80 = 0.05
0.05 x 100 = 5

In short, the decrease in Athena's daily water consumption is 5%.

Hope This Helps You!
Good Luck :) 

- Hannah ❤ 
6 0
3 years ago
Read 2 more answers
H(n) = 3^n+3; Find h (3n)
olya-2409 [2.1K]

Answer:

The option which you chose is absolutely right.

Step-by-step explanation:

h(n) = 3^ n + 3

h(3n) = 3 ^3n + 3

Hope it will help :)

5 0
2 years ago
Find the length of side AB in the right triangle shown.
Bogdan [553]
Side AB is 72 cm long.



Explanation:

To find the length of side AB you have to use this formula:

{a}^{2}  +  {b}^{2}  =  {c}^{2}

*Remember there are two legs (a and b) and a hypotenuse (c) on a triangle. The longest side will be the hypotenuse and the other two will be the legs. For this triangle the hypotenuse is side BC while the legs are sides CA and side AB.

Plug in the numbers into the equation.


{65}^{2}  +  {b}^{2}  =  {97}^{2}
For this triangle, you were given the hypotenuse (c) and one leg (a). To find the last length solve the equation and balance it so only b is left, like this:

4225 +  {b}^{2}  = 9409

9409 - 4225 = 5184

Soo...

{b}^{2}  = 5184

Then to get the side length, square root 5184.

\sqrt{5184}  = 72

So the length of the last side is 72 cm.
5 0
3 years ago
Solve the equation, 4 - (x + 1) = 6.<br><br> x = -3<br> x = 3<br> x = -9<br> x = 9
Vinvika [58]

Answer:

Step-by-step explanation:

The negative in front of the parenthesis changes the signs of the numbers and variables inside the parenthesis. We can rewrite as

4 - x - 1 = 6 and

3 - x = 6 so

- x = 3 and

x = -3

3 0
3 years ago
Read 2 more answers
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