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Novay_Z [31]
2 years ago
6

In an alloy of gold and silver the ratio of the metals is 6:4. How much gold is there in 200 grams of this alloy?​

Mathematics
1 answer:
nexus9112 [7]2 years ago
4 0

Answer:

120 gold is in the alloy

Step-by-step explanation:

G:S

6:4

6+4=10

200/10=20

20*6=120

Hope this helps!

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What is the slope of (8,3) and (-4,-6)?
Nonamiya [84]

<u>Answer:</u> The slope of the line formed by these two points is \frac{3}{4}

<u>Step-by-step explanation:</u>

To calculate the slope, we use the formula:

Slope=\frac{y_2-y_1}{x_2-x_1}

For the coordinates given:

x_1=8\\y_1=3\\x_2=-4\\y_2=-6

Putting values in above equation, we get:

Slope=\frac{(-6-3)}{(-4-8)}\\\\Slope=\frac{-9}{-12}\\\\Slope=\frac{3}{4}

Hence, the slope of the line formed from these two coordinates is  \frac{3}{4}

8 0
3 years ago
What is 3 x 3 1/4 x 3 3/4
likoan [24]

Answer:36.5625

Step-by-step explanation:

Hope this helped!

<!> Brainliest is appreciated! <!>

4 0
3 years ago
Lisa’s grades on four exams were 80, 92, 86, and 78. What is the lowest grade she can receive on the next exam to have an averag
Andre45 [30]

Answer: It is 86 because it says lowest  and greater than

85 so there is your answer have a nice day

Step-by-step explanation:

8 0
3 years ago
The lines shown below are perpendicular. If the green line has a slope of a
Georgia [21]

Answer:

-4/3

Step-by-step explanation:

  • since the both lines are perpendicular the  product of their slopes equals -1
  • let m be the slope of the red line
  • m*a = -1
  • m = -1/a
  • a = (8-5)/(0-(-4)) = 3/4
  • so m = -4/3

6 0
3 years ago
What is the per capita cost of a ​$2.6 million recreation center in a city with 110945 ​people?
kvasek [131]

Answer: $23 per person

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The two significant digits of 23.43035 = 23

thus making it $23 per person.

Here is another example:

4,500,000/260,732= 17.25910

Two significant digits of 17.25910 = 17.25910 (without rounding). However, if it was 17.54210 it would be $18 per person. Hope those two examples help. If not let me know.

8 0
2 years ago
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