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givi [52]
4 years ago
7

una maestra de ciencias tiene 0.4 litors de agua de mar. ella le da a cada uno de sus 22 alumnos un recipiente y una cuchara de

5 mililitros luego, les pide a sus alumnos que inviertan dos cucharas de agua de mar en su recipiente ¿ cuantos millilitros de agua de mar quedaran despues de que 22 estudiantes hayan llenado sus recipientes
Mathematics
1 answer:
victus00 [196]4 years ago
5 0
There will be 180 mL of water left.

To convert liters to milliliters, multiply by 1000:
0.4(1000) = 400

Each student will use two 5-mL spoons of water; 2(5) = 10 mL each. 10(22) = 220 total mL

400-220 = 180 mL left
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Solve the following equation. 6x−15=4x+55 6 x − 15 = 4 x + 55
algol [13]

Answer:

x = 35

Step-by-step explanation:

Solve for x:

6 x - 15 = 4 x + 55

Hint: | Move terms with x to the left hand side.

Subtract 4 x from both sides:

(6 x - 4 x) - 15 = (4 x - 4 x) + 55

Hint: | Combine like terms in 6 x - 4 x.

6 x - 4 x = 2 x:

2 x - 15 = (4 x - 4 x) + 55

Hint: | Look for the difference of two identical terms.

4 x - 4 x = 0:

2 x - 15 = 55

Hint: | Isolate terms with x to the left hand side.

Add 15 to both sides:

2 x + (15 - 15) = 15 + 55

Hint: | Look for the difference of two identical terms.

15 - 15 = 0:

2 x = 55 + 15

Hint: | Evaluate 55 + 15.

55 + 15 = 70:

2 x = 70

Hint: | Divide both sides by a constant to simplify the equation.

Divide both sides of 2 x = 70 by 2:

(2 x)/2 = 70/2

Hint: | Any nonzero number divided by itself is one.

2/2 = 1:

x = 70/2

Hint: | Reduce 70/2 to lowest terms. Start by finding the GCD of 70 and 2.

The gcd of 70 and 2 is 2, so 70/2 = (2×35)/(2×1) = 2/2×35 = 35:

Answer: x = 35

3 0
4 years ago
HELPPPPPPPPPPPPPPP!!!!!!!!!
rjkz [21]

Answer:

31.0344827586%

Step-by-step explanation:

3 + 6 = 9

9 is 31.0344827586% of 29 3

6 0
3 years ago
Read 2 more answers
The lateral surface area S of a right circular cone is given by (equation given below). What radius should be used to produce a
Dima020 [189]
Given:
Lateral Area = π * r * (√h² + r²)

Lateral Area = 100 in² ; height = 5 in

I find it hard to derive the formula of r because of the radical sign. So, I'll just plug each radius to the formula to check confirm the given lateral area.

a) r = 1.52138 ⇒ LA = 24.98
b) r = 4.658 ⇒ LA = 100 
c) r = 78 ⇒ LA = 19152.68
d) r = 6.7432 ⇒ LA = 177.84

The radius is B.) r = 4.658 inches
7 0
3 years ago
Read 2 more answers
Please help with maths (3)
sergeinik [125]
The answer is 42


first change the numbers from scientific notations into numbers.

1.47*10^7= 14700000

3.5*10^5= 350000

now divide the number of sweets by the number of packets. the quotient is the answer

14700000/350000= 42

good luck
5 0
3 years ago
what geographic feature in north africa served as barrier separating it from the rest of the continent?
stepladder [879]

Answer: North Africa is separated from the Iberian Peninsula by the Strait of Gibraltar, which connects the Mediterranean Sea with the Atlantic Ocean.

6 0
3 years ago
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