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pashok25 [27]
3 years ago
11

What statement makes the open sentence 49 – 7x = 21 true? x = 11 x = 7 x = 4 x = 3

Mathematics
2 answers:
Nataly_w [17]3 years ago
7 0
7x=21
1st isolate the x by dividing both sides by 7
7x/7=21/7
x=3<span />
77julia77 [94]3 years ago
4 0
X=4 is the correct answer
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8+7×6/3x3 please help me with the question.
Leto [7]

Answer:

50

Step-by-step explanation:

must use PEMDAS (order of operations)

step 1: multiply 7 and 6

8 + 42 / 3 x 3

step 2: divide 42 by 3

8 + 14 x 3

step 3: multiply 14 and 3

8 + 42

Add to get 50

7 0
3 years ago
Read 2 more answers
The race begins at the rate of 1.5 meters per second. what distance, d, is covered after t second
Nitella [24]
1 second = 1.5 meters
t second = 1.5t meters

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Answer: d = 1.5t 
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4 0
3 years ago
The length and breadth of a rectangular park 25m and 12m. find the distance covered by a boy who takes 4 rounds of the garderean
kodGreya [7K]

Answer:296 m

I’m assuming “breadth” is width and garderean is just the park.

(25+25+12+12) times 4.

A is never defined

5 0
2 years ago
What is the volume of a certain cube? (1) The sum of the lengths of the edges of the cube is 36. (2) The surface area of the cub
german

Answer:

(1) The sum of the lengths of the edges of the cube is 36.

A cube has 12 equal edges. Sum = 36. Length of each edge = 36/12 = 3

Volume = 3*3*3 = 27

(2) The surface area of the cube is 54.

A cube has 6 identical faces. Area of each face = s^2 (s is the length of the side)

6s^2 = 54

s = 3

Volume = 3*3*3 = 27

Step-by-step explanation:

All you need to uniquely define a cube is any one measurement - length of a side/edge, area of a surface, volume etc. If you have any one of them, you can uniquely determine the others. So each statement alone is sufficient here.

To show how,

(1) The sum of the lengths of the edges of the cube is 36.

A cube has 12 equal edges. Sum = 36. Length of each edge = 36/12 = 3

Volume = 3*3*3 = 27

(2) The surface area of the cube is 54.

A cube has 6 identical faces. Area of each face = s^2 (s is the length of the side)

6s^2 = 54

s = 3

Volume = 3*3*3 = 27

8 0
4 years ago
AC and BD intersect at point E which is inside the circle. Find the measure of Arc AB if Arc CD = 60 degrees and Angle CED = 35
tia_tia [17]

Th measure of arc AB will be 60 degrees

<h3>Circle theorem</h3>

The figure shown shows a circle with lines AC and BD intersecting the circle at the point E

From the figure given the measure of the arc AB is congruent to the arc CD.Given that the measure of arc CD is 60 degrees, hence the measure of arc AB will also be 60 degrees

Learn more on circle theorem here: brainly.com/question/6240879

#SPJ1

6 0
2 years ago
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