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aivan3 [116]
2 years ago
13

While mining, John found a large metal bar that contained 15 pounds of zinc. John also determined that the bar was 60% zinc. Wha

t was the total weight of the metal bar in pounds? Round your answer to the nearest whole number if necessary.
Mathematics
1 answer:
finlep [7]2 years ago
4 0

Answer:

The total weight of the metal bar in pounds is 25 pounds

Step-by-step explanation:

Now, we have a metal bar which has a content of 60% zinc corresponding to 15 pounds.

Mathematically, let’s say the total weight of the metal composite is x pounds. It is 60% of this that is 15 pounds which is the content of the zinc

Mathematically;

60/100 * x = 15

60x = 15 * 100

60x = 1500

x = 1500/60

x = 25 pounds

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nata0808 [166]

Answer:

for a) the following answers are in order from left to right.

5, 2, 2, and 10

for b) this is the square root of three: 1.73205080757 [u can round it to the first decimal place urself! :)]

Step-by-step explanation:

b) 4 = x^2 + 1

4 - 1 = x^2 - 1

3 = x^2

so the sqaure root for 3 is 1.73205080757

5 0
3 years ago
I need help with this question??
salantis [7]
I believe it's four times as great : )
4 0
3 years ago
Qué número entero está entre -2 y 5​
cestrela7 [59]

Answer:

1.5

Step-by-step explanation:

-2,-1,0,1,2,3,4,5

Le quitamos un número hasta llegar al medio. En el medio hay dos números, el 1 y el 2. Pues tenemos que buscar el promedio de los dos (1+2=3 y 3÷2=1.5).

4 0
3 years ago
Please please help me
OLga [1]

Answer:

(x - 5)² + (y + 3)² = 16

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

here (h, k) = (5, - 3) and r = 4, thus

(x - 5)² + (y - (- 3))² = 4², that is

(x - 5)² + (y + 3)² = 16 ← equation of circle

4 0
3 years ago
15. Oscar wants to rent a boat. The rental shop charges and initial fee of $12 plus $8 per hour to rent the boat. Write a equati
lbvjy [14]
C=8h+12
the 8h represents the $8 per hour for renting the boat, and h represents however many hours you rent the boat for.  The +12 is the initial $12 fee.  This is in slope intercept form, just using different variables than y=mx+b
5 0
3 years ago
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