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grigory [225]
3 years ago
10

Solve the simultaneous equations: 4x+3y=16 5x-y=1

Mathematics
1 answer:
Artemon [7]3 years ago
4 0
The answer look at photo.

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The average of 8 numbers is 10. the average of 6 of the numbers is 12 what is the average of the other 2 numbers
omeli [17]
So, all 8 numbers added up would equal 80. and all 6 numbers added up would equal 72. The subtract them. 80-72 is 8. Then divide by 2 because there are 2 numbers. 8/2 is 4. (4 is your answer)
7 0
3 years ago
Ivan and Kate live 40 miles apart. Ivan leaves his house at 8:00 a.m.
Triss [41]

Answer: Time at which the meet = 10:17:24 am

Step-by-step explanation: Speed of Ivan = 12 mph

Speed of Kate = 16 mph

Total distance traveled = Initial separation = 40 miles

Ivan leaves his house at 8:00  a.m and Kate leaves her house at 9:30  a.m

If t is the time of catch up after Ivan starting, time taken by Kate is t - 1.5,

We have

            Distance = Speed x Time

         Total distance traveled = Distance traveled by Kate + Distance traveled by Ivan

       40 = t x 12 + (t-1.5) x 16

        40 = 28t - 24

         28t = 64

             t = 2.29 hours

So after 2.29 hours of Ivan's starting they meet,

Time = 8:00 am + 2.29 hours = 10:00 am + 0.29 x 60 minutes = 10:17am + 0.4 x 60 seconds = 10:17:24 am

Time at which the meet = 10:17:24 am

6 0
2 years ago
Simplify each expression. 4(4)(2b)
blondinia [14]

Answer:

32b

Step-by-step explanation:

4(4)(2b)=16(2b)=32b

7 0
3 years ago
Triangle STU is rotated 270 clockwise about the origin to create triangle S'T'U'. If point U of triangle STU is a (a,b), which a
nadya68 [22]

Answer:

(b, -a)

Step-by-step explanation:

First note that the rule for a rotation by 270° about the origin is (x,y)→(y,−x)

Note that the coordinates were swapped and the x coordinates negated. Similarly;

Given the coordinate of the point U as (a, b), if the triangle is rotated 270degrees clockwise, the resulting coordinate will  be (b, -a)

6 0
2 years ago
6(-3-7)=? Please help!
katovenus [111]

Answer:

-60

Step-by-step explanation:

Distribute

6 x -3 = -18

6 x -7 = -42

-18 - 42 = -60

If my answer is right, please give it the brainliest.

4 0
3 years ago
Read 2 more answers
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