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PSYCHO15rus [73]
3 years ago
12

The distance between two lakes is 300 miles. On a map, the measured distance between the lakes is three-fourths of an inch. What

is the scale of the map?
Mathematics
1 answer:
Murljashka [212]3 years ago
3 0
1 inch = 400 miles The scale gives the relationship between the measurements of the drawing or model and the measurements of the real object.
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At a school dance, the ratio of girls to boys is 8:3. If there are 528 students at the dance, how many are boys and how many are
weqwewe [10]

Answer:

144 boys and 384 girls

Step-by-step explanation:

8 girls to every 3 boys. You can make an equation to solve this: 8x + 3x = 528. 528 = 11x. Then divide 528 by 11 to get 48. x=48. 8(48) = 384 girls. 3(48) = 144 boys.

6 0
2 years ago
A bag contains 6 one-dollar coins and 4 two-dollar coins. Three coins are taken at random without replacement.
IgorLugansk [536]
The answer is b why because I had did it on the test and I had got it right HOPEFULLY IT HELPS
3 0
3 years ago
Help me out here.........
Naya [18.7K]

Answer:

G. 10.5 pounds

Step-by-step explanation:

96 oz + 72 oz = 168 oz

There are 16 oz in one pound

168 oz / 16 oz = 10.5 pounds.

Please be sure to mark this as brainliest if it helpd you!

4 0
2 years ago
Read 2 more answers
How would you identify the number of real roots of a polynomial function from the graph of the function​
beks73 [17]

Hi there! See an attachment below! (May not be clear for an explanation so I will explain it to you.)

We can find real roots of polynomial function by counting their x-intercepts of graph. See in the attachment that the graph intersects 3 points on x-axis/plane.

x-axis represents the solutions of the graph or equation of the graph. For example, a graph of (x-1)² would be a parabola that has x-intercept at (1,0). If we solve the equation for (x-1)² = 0, our solution would be x = 1 like the x-intercepts.

Conclusions

  • We can find the real roots of the graph by counting how many points does the graph intersect on x-axis/plane.
  • If a graph doesn't intersect x-axis or does not have any points on x-axis, that graph or its equation does not have a real root. For example, graph of x²+1

Any questions can be asked through comment as I may reply to you soon! Thanks for using Brainly. Have a great day and happy learning!

3 0
2 years ago
Which ordered pair (x, y) is a solution to the following system of equations?
Rudik [331]

Answer: (-6, 4)

Step-by-step explanation:

You can use the Elimination method:

- Multiply the the first equation by -3 and the second one by 5.

- Add both equations.

- Solve for y:

\left \{ {{(-3)(5x+4y=-14(-3)} \atop {5(3x+6y)=6(5)}} \right.\\\\\left \{ {{-15x-12y=42} \atop {15x+30y=30}} \right.\\-------\\18y=72\\y=4

- Susbtittute y=4 into any of the original equations and solve for x:

3x+6(4)=6\\3x=6-24\\3x=-18\\x=-6

Then the ordered pair is:

(-6, 4)

7 0
3 years ago
Read 2 more answers
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