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Paladinen [302]
3 years ago
11

Find two numbers, if … c Their sum is 3/5 and their difference is 7 1/5

Mathematics
1 answer:
Makovka662 [10]3 years ago
7 0

Answer:

39/10 and - 33/10.

Step-by-step explanation:

7 1/5 = 36/5  so if the 2 numbers are x and y, we have:

x + y = 3/5

x -  y =  36/5      

Adding the 2 equations to eliminate y:

2x =  39/5

x = 39/10.

So 39/10 + y = 3/5  (from the first equation).

y = 3/5 - 39/10

y = 6/10 - 39/10

y = -33/10.

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There are 19.3 cups of flour in a bag. The chef uses 2.9 cups for making cookies.
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Answer:

10.1 cups left

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7 0
2 years ago
Luke wants to raise $175 for a school fundraiser. She had raised $120 so far. How much more does she need to reach her goal
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3 0
3 years ago
Read 2 more answers
Someone tell me where everyone is going right please !!
myrzilka [38]

Answer:

A 2

B 1

C 4

D 3

Step-by-step explanation:

( ) means not including (also used for infinity)

[ ] means including

The answer choices are in interval form, showing all the possible answer choices between two numbers and if the answer choice includes or excludes a number using the () []

Explanation for A:

x < 7.8 means x won't include 7.8 since the symbol is "less than" and not "less than or equal to".

x can be anything, it just has to be less than 7.8, so the answer is:

2 (-infinity, 7.8)

Explanation for B:

x <= 7.8 means x will include 7.8 since the symbol means "less than or equal to".

x can be anything, it just has to be less than or equal to 7.8, so the answer is:

1 (-infinity, 7.8]

Explanation for C:

x >= 7.8 means x will include 7.8 since the symbol means "greater than or equal to".

x can be anything, it just has to be greater than or equal to 7.8, so the answer is:

4 [7.8, infinity)

Explanation for D:

x > 7.8 means x won't include 7.8 since the symbol means "greater than" and not "greater than or equal to".

x can be anything, it just has to be greater than 7.8, so the answer is:

3 (7.8, infinity)

Hope it helps (●'◡'●)

5 0
3 years ago
Read 2 more answers
Try these calculations using the<br>graphing calculator:<br>31 x 42 -<br>443-637 -​
puteri [66]

Answer:

31 × 42 =  1,302

443 – 637 =  -194

Step-by-step explanation:

4 0
4 years ago
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