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ira [324]
3 years ago
13

True or False:

Mathematics
2 answers:
andrezito [222]3 years ago
8 0

Step-by-step explanation:

LHS = 5x+y =5(1)+2= 5+2= 7

RHS = 7

since LHS= RHS

LHS = 7x-2y =7(1)-2(2)=7-4=3

RHS = 3

since LHS=RHS

(1, 2) is a solution to the following system of equations.

True

Nesterboy [21]3 years ago
6 0

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

A) True

»»————- ★ ————-««  

Here’s why:  

  • I have used a graphing program to graph the lines given.
  • When they are graphed, the lines intercept at the point (1,2). This means that it is a solution to the system, and the given statement is true.
  • See the graph attached.

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

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How many terms does the expression 7x - 2y + 5 have? A. 3 B. 2 C. 1 D. 0
tigry1 [53]

Answer: A. 3

Step-by-step explanation: You can't put x and y together. There are two different variables. Then the 5, is just can't add together with another number because the numbers have a variable with it.

Please mark me brainliest bc one more to get a higher rank :)

5 0
4 years ago
Read 2 more answers
Johan found that the equation –2|8 – x| – 6 = –12 had two possible solutions: x = 5 and x = –11. Which explains whether his solu
lutik1710 [3]

Answer:

we have two solution x = 5 and x = 11

but in given problem x = 5 and x = –11

thus, only one of his solution x = 5 is correct

Step-by-step explanation:

Given

–2|8 – x| – 6 = –12

adding 6 both sides

–2|8 – x| – 6 +6= –12 +6

–2|8 – x|  = –6

dividing both side by -2

–2|8 – x| /-2 = –6/-2

=>|8 – x|  = 3

we know that

in modulus function |Y| = -y or y

Thus

|8 – x|  = 3

can be written as

8-x = 3   or          8- x = -3

8-x-3 = 0  or      8-x+3 = 0

5-x = 0     or      11 -x = 0

x = 5       or x = 11

thus, we have two solution x = 5 and x = 11

but in given problem x = 5 and x = –11

thus, only one of his solution x = 5 is correct

8 0
3 years ago
Marilyn ate 7/8 of a pizza. Gregory ate 1/3 of a pizza. How much more pizza did Marilyn eat than Gregory?
Serhud [2]

Answer:

13/24

Step-by-step explanation:

Find the LCD of 8 and 3, which is 24.

Now, multiply both numerators so that the following fractions would be equal:

7/8 = x/24

1/3 = y/24

Our result is that

7/8=21/24

1/3 = 8/24

21/24 - 8/24 = 13/24

8 0
3 years ago
A cylinder has volume 628in and a radius of 10 inches. Who’s is the height of the cylinder rounded to the nearest inch?
Anettt [7]

Answer:

h = 20 in

Step-by-step explanation:

V = pi * r^ * h

628 = pi x 10 x h

628/(pi x 10) = h

h = 20

7 0
3 years ago
Please help me. Show work
Goryan [66]
What hell there is nothings ??
7 0
3 years ago
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