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emmasim [6.3K]
2 years ago
6

Solve for x. Need help, please.

Mathematics
1 answer:
dlinn [17]2 years ago
5 0

x=9

hope this helps you. :)

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What is the probability of PICKING A RED CHALK, if there red,green,blue,orange,and white chalks (TWO EACH) in a basket ?
Zepler [3.9K]

Answer:

2/10   = 1/5.

Step-by-step explanation:

There are 2 reds in 10 chALKS.

4 0
2 years ago
Read 2 more answers
7) Una epidemia mató los 3/7 de las vacas de un granero y de las que le quedaron vendió 1/2. Si todavía le quedaron 24 vacas, ¿C
4vir4ik [10]

Answer:

Habían inicialmente 84 vacas. Murieron 36 vacas. 24 vacas fueron vendidas.

Step-by-step explanation:

Sea x la cantidad inicial de vacas. De acuerdo con el enunciado, murieron tres séptimos de la cantidad inicial y la mitad de ese remanente fue vendida, quedando 24 vacas. Matemáticamente, tenemos las siguientes operaciones:

Cantidad inicial de vacas

x = \frac{24}{\left(1-\frac{3}{7} \right)\cdot \left(1-\frac{1}{2} \right)}

x = 84

Habían inicialmente 84 vacas.

Cantidad de vacas muertas

y = \frac{3}{7}\cdot x

y = 36

Murieron 36 vacas.

Cantidad de vacas vendidas

z = \left(1-\frac{3}{7} \right)\cdot \frac{1}{2}\cdot x

z = 24

24 vacas fueron vendidas.

8 0
3 years ago
8 - 3x4 + 6/2<br><br> what’s the answer? help plz i really need help
Anastaziya [24]

Answer:

3 2/5

Step-by-step explanation:

8-3x4

ok well do 3x4 that is 12

so do 12 minus 8 which is 4. and 4 as a fraction is 2/5 so

do 6/2 plus 2/5

which is.....

.....

3 and 2/5

6 0
3 years ago
What is the value of x?<br><br> Enter your answer in the box.
ehidna [41]

Answer:

25

Step-by-step explanation:

c^2=a^2+b^2

where c = hypotenuse

so, x^2 = 24^2+7^2

x^2 = 576 + 49

x^2 = 625

x = square root of 625

x = 25

3 0
1 year ago
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Forty five percent of middle schools have a horse as a mascot. If there are 420 middle schools how many have a horse as a mascot
allochka39001 [22]
189
Because you have to turn it into a percentage in order to know how many per 1 percent. So multiply 420 by 100 and get 4.2 then you multiply it by 45 and you get 189 so 179 schools have a horse mascot
3 0
3 years ago
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