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nevsk [136]
3 years ago
12

What do these signs mean

Mathematics
1 answer:
polet [3.4K]3 years ago
8 0

<em>:-) :-( ;-) :-P (^o^) ^o^ ^_^ :-! 8-) :-{ :-[ (-: </em>

<em>or</em>

<em> that is not an exercise. but still thanks for the points.</em>

<em />

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A recipe for punch calls for 5 parts grape soda to 2 part seltzer. If hector has 10 cups of of grape soda, how much seltzer does
posledela

Answer:

assuming 10 cups it 10 parts then the answer is 4 cups of seltzer

8 0
3 years ago
The great Pyramid outside Cairo, Egypt, has a square base measuring 756 feet on a side and a height of 480ft
Vlada [557]

Answer:

V = 3,386,880 cubic yards

V = 91445760 cubic feet

V = (1/3) · b2 · h  so  1/3  x 756^2 x 480 = 91445760 ft^3

Answer = 91445760 ft^3

Step-by-step explanation:

converting feet into yards

let  

1 yard = 3 ft  

1 ft = (1/3) yard  

a = 756 ft = 756*(1/3) yards the length of the side of the square base

h = 480 ft = 480*(1/3) yards the height of the pyramid

 

a.) the volume of the pyramid V = (a^2*h)/3 = (a^2*h)(1/3)

V = (756*(1/3))^2*480*(1/3)*(1/3)

V = 3,386,880 cubic yards

7 0
2 years ago
I will give brainliest
Alenkinab [10]

Answer:

I think the answer you got is correct.

5 0
3 years ago
Read 2 more answers
Mr. larsenʹs third grade class has 22 students, 12 girls and 10 boys. two students must be selected at random to be in the sprin
Lelu [443]
P(1\ boy+1\ girl)=\frac{12C1\times10C1}{22C2}=0.5195
The answer is 0.5195
6 0
3 years ago
Se requiere dos personas para construir una barda de 20 m de largo y 1.5 m de alto en dos días ¿cuántas personas se necesitan pa
Wewaii [24]

Answer:

Definamos R como la "velocidad" a la que una persona puede construir la barda dada.

Supongamos que la persona necesita un tiempo T para construir la barda, entonces tenemos la relación:

R*T = 1 barda.

Si dos personas trabajan juntas la velocidad de trabajo va a ser (R + R), y sabemos que ellos pueden completar el trabajo en 2 días, entonces:

(R + R)*2 días = 1 barda

(2*R)*2 días = 1 barda

(2*R) = (1/2) barda por día

R = (1/2)*(1/2) barda por día = (1/4) barda por día.

Esto significa que una persona puede completar un cuarto de la barda en un día de trabajo.

Ahora queremos saber cuantas personas se necesitan para construir una barda en solo medio día, entonces debemos resolver:

(N*R)*0.5 días = 1 barda

Donde N es el número de personas que queremos obtener.

(N* (1/4) barda por día)*0.5 días = 1 barda

N*(1/4) barda por día = (1/0.5) bardas por día = 2 bardas por día

N = 2/(1/4) = 2*4 = 8

N = 8

Se necesitan 8 personas para construir una barda en medio día.

6 0
2 years ago
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