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VashaNatasha [74]
3 years ago
13

X-y=-3 I just kinda need the answer

Mathematics
1 answer:
bezimeni [28]3 years ago
5 0

Just so you know, you have to know at least one of the variables to find out what the other is. Like for example, X could equal 2, so that would make y equal 5. Or X could equal 23, and that would make y equal 26.

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sally gave her brother 3.95 in quarters and dimes. if the number of quarters is 6 more then the number of dimes, how many quarte
iragen [17]
Let q be the number of 25 cent coins.
Let d be the number of 10 cent coins.
0.25q+0.10d= 3.95...(1)
q-d=6...(2)

(2)->    q-d= 6
       q-d+d= 6+d
              q= 6+d...(2a)

(2a)-> (1)      0.25q+0.10d=3.95
              0.25(6+d)=0.10d= 3.95
           1.95+0.25d+0.10d= 3.95
                               0.35d= 3.95-1.5
                       0.35d/0.35= 2.45/0.35
                                      d= 7...(3)

(3)->(2)     q-d= 6
                 q-7= 6
                    q=6+7
                    q= 13
There are 13 quarters and 7 dimes.
7 0
3 years ago
What is the circumference of a circle with diameter 24 m
marshall27 [118]

Answer:

24\pi

Step-by-step explanation:

4 0
2 years ago
(5x2 + 4x + 3) - (2x2 - 2x + 5)
Setler [38]

Answer:

3x^2+6x-2

Step-by-step explanation:

(5x2 + 4x + 3) - (2x2 - 2x + 5)

5x^2+4x+3-2x^2+2x-5

3x^2+6x-2

7 0
3 years ago
Help- I'll give brainliest<3
kap26 [50]

Answer:

The steps are to first find the samllest multiple for the denominator and then cross multiply the numerator with the other denominator nd these you go.

Example : number one is 3/20.   LEARN  

Step-by-step explanation:

Okay fractions are EEEZZZ

8 0
3 years ago
Help this is really hard for me, I need it rn
Fittoniya [83]

- 7b + 5 \leqslant 33 \\  \\  - 7b \leqslant 33 - 5 \\  \\  - 7b \leqslant 28 \\  \\  - b \leqslant  \frac{28}{7}  \\  \\ - b \leqslant  \cancel \frac{28}{7}  \\  \\  - b \leqslant 4 \\  \\ b  \leqslant 4

Hope this helps

6 0
2 years ago
Read 2 more answers
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