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lapo4ka [179]
3 years ago
12

PLEASE HELP ME!!!!!!!!! 1/7 + 2 4/7 A) 2/3 7 B) 2/5 7 C) 2/6 7 D) 2/7 7

Mathematics
1 answer:
frosja888 [35]3 years ago
3 0

Answer:

1/7 + 2 4/7 = 2 5/7

Step-by-step explanation:

Leave 2 alone since there are no other whole numbers to add to it.

Then combine the fractions

1/7 + 4/7 = 5/7

So we have 2 5/7

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What is the value of x in the equation 3(2x+8)=0
maxonik [38]

Answer:

x = -4

Step-by-step explanation:

3(2x+8)=0

Divide each side by 3

3/3(2x+8)=0/3

2x+8 = 0

Subtract 8 from each side

2x+8-8=0-8

2x = -8

Divide by 2

2x/2 = -8/2

x = -4

7 0
3 years ago
If you graph the system of inequalities given below, which points would lie in the solution set? Select all the correct answers.
vivado [14]
Its just a matter of subbing...but keep in mind, for it to be a solution, it has to satisfy all 3 inequalities

x - y > = -4
2x - y < = 5
2y + x > 1

solutions are : (-1,3) and (3,5)

5 0
2 years ago
Read 2 more answers
Find an equivalent expression to 5+9
Marina86 [1]
Since 5 + 9 is 14 you can use ANY expression that has the same final value/ sum
6 0
2 years ago
Carrie missed 9.6% of the problems on a test. The test had a total of 125 problems.
Nataly_w [17]

Answer:

G 13

Step-by-step explanation:

X/125 = 9.6%/100%

125*(9.6) / 100 = 12;

BEST estimate 13

7 0
2 years ago
Find the coordinates of the three points on the graph of y = (1/2)x² -2x whose x-values are −2, 0, and 4.
MaRussiya [10]

Answer:

y = 6

y = 0

y = 0

Step-by-step explanation:

y=\frac{1}{2}x² -2x

When, x = -2

y=\frac{1}{2}\times (-2)^2-2\times(-2)\\\Rightarrow y=\frac{1}{2}4+4\\\Rightarrow y=2+4\\\Rightarrow y=6

y = 6

When, x = 0

y=\frac{1}{2}\times (0)^2-2\times(0)\\\Rightarrow y=0+0\\\Rightarrow y=0

y = 0

When, x = 4

y=\frac{1}{2}\times (4)^2-2\times(4)\\\Rightarrow y=\frac{1}{2}16-8\\\Rightarrow y=8-8\\\Rightarrow y=0

y = 0

3 0
3 years ago
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