Answer:
first one
Step-by-step explanation:
first one
1^13 = 1
1^15 = 1
P.S.
1 to the exponent of any number is equal 1
3 yards = $7.47
1 yard = $(7.47 ÷ 3) = $2.29
2 yards = $ (2.29 × 2) = $5.58
$ (7.47 + 5.58) = $ 13.05
Answer:
The ratio of the number of Lisa’s stickers to the number of John’s stickers is 3/2
Step-by-step explanation:
Step 1
Let
x ----> the number of stickers that Lisa has
y ----> the number of stickers that John has
we know that
------> equation A
----> equation B
Solve the system by substitution
Substitute equation B in equation A and solve for y
Find the value of x
----->
therefore
Lisa has 36 stickers and John has 24 stickers
Step 2
Find the ratio of the number of Lisa’s stickers to the number of John’s stickers
so
x/y
substitute
Answer:
Step-by-step explanation:
All we need to do here is to employ the point-slope formula for the equation of a straight line: y - k = m(x - h). Here h = 3, k = 7 and m = 2. After substituting these values into y - k = m(x - h), we get:
y - 7 = 2(x - 3) (point-slope form)
This is perfectly adequate/correct, but it can be simplified into slope-intercept form y = mx + b:
y = 2x - 14 + 21, or
y = 2x + 7 Clearly, the y-intercept is 7 and the slope is 2. This is the slope-intercept form.
To graph this line, let x = 0. Then the y-intercept is (0, 2). Plot this. Next, find the x-intercept: Let y = 0 and solve the resulting equation for x:
0 = 2x + 7, or 2x = -7, or x = -7/2. Plot this (-7/2, 0). Finally, draw a line through these two points (0, 2) and (-7/2, 0).
Answer:
C. An increase of 20%
Step-by-step explanation:
50/100 = 60/x
Cross products
50
x = 6000
Divide 50 by both sides
x = 120
60 is 120% of 50, so there is a 20% increase
Hope this helps!
-Jerc