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klio [65]
3 years ago
11

Solve using the guess-and-check strategy

Mathematics
2 answers:
never [62]3 years ago
8 0
Matthew is 12 yrs old and Elizabeth is 7yrs old
Hope this helps
Iteru [2.4K]3 years ago
3 0
Matthew is 12 and Elizabeth is 7

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What’s the preimeter to this?
kobusy [5.1K]

decimal form

119.571428571

fraction form

119571428571/1000000000

Have a nice day

hope this attachment relates to you

6 0
3 years ago
I don’t even know what i’m doing anymore. aren’t there supposed to be two answers??
Evgen [1.6K]

Answer:

a>4

Step-by-step explanation:

-7a-11<1-4a

ADD 4a to both sides

-3a-11 <1

Add 11 to both sides

-3a <12

Divide both sides by 3

-a <4

Multiply by -1 both sides and FLIP SIGN

a>4

So  a should be 5 ,6,7,8.........

On the number line you need to count from zero  4 units to the right (positive 4) Once you are in number 4 draw an open circle which means the 4 is NOT included) Draw a line from 4 to the right because it is bigger than 4.

Interval notation is (4,∞)

[ ] a square bracket when we want to include the number 4

( ) a round bracket when we don't want to include the number 4

8 0
3 years ago
What are the coordinates of the point obtained if the point A=(3,7) is rotated 180 degrees about the origin?
Yuliya22 [10]

Answer:

B. (-3, -7)

Step-by-step explanation:

Anytime you rotate a number 180° about the origin, the numbers in the coordinates become their opposites.

-3 is the opposite of 3 and -7 is the opposite of 7.

Therefore, your new coordinates are (-3, -7)

(x,y) becomes (-x,-y)

8 0
4 years ago
Which method works best to solve the following system of linear equations?
strojnjashka [21]
C I’m not really sure but try
8 0
3 years ago
10 minus three times a number is no more than 61​
Elena L [17]

Answer:

n ≥ -17

Step-by-step explanation:

Writing a symbolic inequality, we get:

10 - 3n ≤ 61

Solve this for 3n by adding 3n to both sides of this equation:

10 ≤ 61 + 3n

Solve for n by subtracting 61 from both sides and then dividing all of the resulting terms by 3:

-51 ≤ 3n (divide both sides by 3):

-17 ≤ n, or

n ≥ -17

8 0
3 years ago
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