Answer:
5 of the 7 boxes are 8 inches in height
Step-by-step explanation:
Mathematically;
1 ft = 12 inches
So, 5 ft will measure 5 * 12 = 60 inches
So from what we have ,
We want to combine 8 and 10 inches to give 60 inches total
Let the number of 10 inches be x and the number of 8 inches be y
Mathematically;
x + y = 7 •••••(i)
10x + 8y = 60 ••••(ii)
From equation i, x = 7-y
Put this in equation ii
10(7-y) + 8y = 60
70-10y + 8y = 60
70-60 = 10y-8y
2y = 10
y = 10/2
y = 5
Answer:
Choice A. -3
Step-by-step explanation:
Using the x1-x2/ y1-y2 u fill in. So it would be 3-(-3) (x-axis) and 2-4 (y-axis).
So when u do both of those you are left with 6/-2.
When u simplify 6/-2 you get -3.
It would be -3. When you are subtracting a negative, that pretty much means you add that number to the first one. A negative along with another negative would equate to a positive. So it would be -6+3.
Answer:
Step-by-step explanation:
The slope formula for a straight line is:
Where, 'm' is the slope and 'b' is the y-intercept.
To find the x-intercept of a line, we need to equal 'y' to zero, and then solve for 'x'. In this case we know that the x-intercept is 1, so we have the point (x1, y1)=(1,0). We are given a second point which is: (x0, y0)=(-2, 12).
To find the slope, we use the following formula:
Now, The equation of the line is: y - y0 = m(x-x0). Then, substituting the values of 'm', 'x0' and 'y0' we have that:
The equation of the line using the slope-intercept form is:
10 weeks because there are 100 cm in a meter so 30x10 = 300 and 300 divided by 100 is 3.
