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netineya [11]
2 years ago
7

A number exceeds its four-sevenths by 18. Find the number.

Mathematics
1 answer:
Andru [333]2 years ago
5 0

Answer:

42

Step-by-step explanation:

let the number be x

4/7 of x

(4/7) × x

4x/7

As stated in the question:

x=4x/7+18

=x-4x/7=18

=(7x-4x)/7=18

=3x/7=18

3x= 18×17

3x= 126

x=126/3

x=42

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Orlov [11]

Answer:

1

Step-by-step explanation:

6 0
3 years ago
(-1)(-11) please solve!!
Zinaida [17]

Answer:

A positive 11

Step-by-step explanation:

11 is your answer

8 0
3 years ago
Rachel can make 3 bracelets in an hour. Oliver can make only 2 bracelets in an hour, but he already has completed 5 bracelets. E
Sidana [21]
For the answer to the question above, Since Rachel makes 3 bracelets an hour, her linear equation should be y=3h. 3 represents the rate of change and h represents the number of hours as a variable. 
Oliver's linear equation is y=2h+5 because 2 is the rate of change and 5 is the b value or the y-intercept in a linear equation y=mx+b. To find when both have the same number of bracelets, we find the point of intersection...
2h+5=3h
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Therefore in 5 hours, both will have the same amount of bracelets. 
7 0
3 years ago
Given points A(0,3) B(-1,4) C(2,-1). What is coordinate B’ if the figure is rotated counter-clockwise 90 degrees?
attashe74 [19]

Answer: The answer is (C) (4,1).


Step-by-step explanation:  Given points are A(0,3), B(-1,4) and C(2,-1). Obviously, these points will form a triangle. We need to find the co-ordinates of the point B', which is formed after rotating the figure counter-clockwise 90 degrees.

The point B(-1,4) lies in the second quadrant. After rotating 90 degrees counter-clockwise, the this point will lie in the first quadrant. So, both the x-coordinate and y-coordinate will be positive. Also, the two coordinates will exchange. Please see the attached figure.

Thus, the coordinates of point B' are (4,1).

Hence, (C) is the correct option.


3 0
3 years ago
If x = 3 and g= -6 than what is the value of 4x+3g
galina1969 [7]
4•3+3•-6=12-18=-6 so the answer will be -6
7 0
3 years ago
Read 2 more answers
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