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Klio2033 [76]
3 years ago
15

Someone please help me

Mathematics
1 answer:
Mariana [72]3 years ago
6 0

Answer:

1. 12x+10

2. 2x+11y-7

3. -10x-11

4. y=4

5. -m+7n-2

Step-by-step explanation:

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PLS HELP WILL GIVE BRAINLIEST
andreyandreev [35.5K]

The guts of the table are ...

\left[\begin{array}{cccc}x&y&x+y=85&y=2x+4\\19&65&\text{false}&\text{false}\\25&60&\text{true}&\text{false}\\27&58&\text{true}&\text{true}\\32&53&\text{true}&\text{false}\end{array}\right]

Of course, you know the answer after figuring the third line of the table.

The two numbers are 27 and 58.

_____

If the second number is odd, the result after subtracting 4 will not be divisible by 2. This lets you reject the 1st and 4th choices immediately. As for the second choice, twice 25 is 10 less than 60, not 4 less, so that choice can also be discarded.

Starting from the system of equations

x+y=85\\y=2x+4

you can use substitution to get

x+(2x+4)=85\\\\3x=81\qquad\text{subtract 4}\\\\x=27\qquad\text{divide by 3}

This identifies the 3rd selection as the appropriate one.

5 0
3 years ago
Read 2 more answers
What percentage of businesses are using social media today? 35 percent 50 percent 65 percent 80 percent
KonstantinChe [14]

Answer:

80

Step-by-step explanation:

3 0
3 years ago
Bella baked 3 batches of 24 homemade dog treats. She packed 12 bags with an equal number of treats. How many treats were in each
Aleksandr-060686 [28]

6 treats in each bag.

First, since there were 3 batches of 24 treats, multiply 3 by 24 to get the total amount of treats

3•24=72 treats in total

Next, divide 72 by 12 to get how many treats will go in each bag.

72/12= 6 treats in each bag.

Next,

7 0
3 years ago
Neeeeeeeddd tooo much helplpp
MariettaO [177]
Hello there. I believe it’s c
8 0
3 years ago
Please find out what x is
Ratling [72]

Answer:

10

Step-by-step explanation:

The sum of exterior angles for any polygon is 360.

so first add up all the given exterior angle:

30+35 = 65.

next, find all the exterior angles that you can find:

Exterior angle = 180-interior angle

so:

180-90 = 90

180-135 = 45

180-120 = 60

180-90=90

These are all that we can find.

now add these to 65:

90+45+60+90+65 = 350

To find x, subtract 350 from 360, which is the sum of exterior angles.

360-350 = 10

Hope this helps

Good Luck

6 0
4 years ago
Read 2 more answers
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