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Varvara68 [4.7K]
3 years ago
10

5x + 2y = 8

Mathematics
2 answers:
Mrrafil [7]3 years ago
8 0
Mult the 2nd by 2 then add. this eliminates one of the variables (y) and allows you to solve the other one x
vitfil [10]3 years ago
5 0

Answer:

So it's b.) right

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Your cousin borrows $1125 to repair her car. The simple annual interest rate is 10%. She makes equal monthly payments of $25. Ho
stepan [7]

Answer:

Step-by-step explanation:

Your cousin borrows $1125 to repair her car. The simple annual interest rate is 10%. She makes equal monthly payments of $25. How many years will it take to pay off the loan? (PLSSS HELP)

Given data

P=$1125

R=10%= 0.1

I= $25

We know that

I=PRT

5 0
3 years ago
The ratio of the number of boys to the number of girls in a school is 5 : 7. If there are 600 students in the school, how many a
enot [183]

Answer:

350 of the students are girls.

Step-by-step explanation:

5+7 = 12

600/12 = 50

50 x 7 = 350

4 0
3 years ago
graham spent a total of 7.25 on 8 oranges and a packet os strawberries if a packet of strawberries cost 2.85 how much did each o
JulsSmile [24]
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6 0
4 years ago
2. WHAT IF? A random sample of 8 speeding tickets issued in State C has a median of $120. Can you conclude that a speeding ticke
Paul [167]

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6 0
2 years ago
Read 2 more answers
How to find the angle of a triangle with 3 sides?
Molodets [167]

Explanation:

The Law of Cosines specifies the relationship between the three sides of a triangle and any one of the angles. If the sides are designated a, b, and c, and the angle opposite side c is C, then it tells you ...

  c² = a² + b² -2ab·cos(C)

This relationship can be used to find any and all angles, given the three sides of a triangle. Or, having found one angle using the Law of Cosines, the others can be found using the Law of Sines:

  sin(A)/a = sin(B)/b = sin(C)/c

_____

Typically, inverse functions are required. That is, from the Law of Cosines, ...

  C = arccos((a² +b² -c²)/(2ab))

And from the Law of Sines, ...

  A = arcsin(a/c·sin(C))

  B = arcsin(b/c·sin(C))

_____

<em>Note on solving triangles</em>

It often works best to make use of exact values where possible. It is also a good idea to start with the longest side/largest angle. Of course, once you have two angles the other can be found as the supplement of their sum.

8 0
3 years ago
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