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masha68 [24]
3 years ago
13

Abby did 121 sit ups in 8 minutes estimate the number of sit ups she did in 1 minute

Mathematics
2 answers:
const2013 [10]3 years ago
4 0
You would divide 121 by 8.
121 / 8 =  15.125 So she did about 15 sit ups in a minute. Hope this helps!
 
oee [108]3 years ago
3 0
The answer would be 15.125 but that can't exist so about 15 sit ups
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A grade has 81 girls and 72 boys. The grade is split into groups that have the same ratio of girls to boys as the whole grade. H
notka56 [123]

Answer:

For every 9 girls there are 8 boys!

Step-by-step explanation:

So for the box under 9 there would be 8 and the next box on top of 16 would be 18 because 2*8 is 16 and 2*9 is 18.

6 0
2 years ago
Read 2 more answers
Let g(x)=-5x+2 with g(-1)
masha68 [24]
Replace x with -1.

G(-1) = -5(-1) + 2

= 5 + 2

= 7


I hope this Helps!
4 0
3 years ago
The sum of two consecutive integers is 199. Find the integers
Vikki [24]
Here’s your answer. Hope this helped!!

8 0
3 years ago
Which would be appropriate compatible numbers to use to estimate ( 19 4 5 ) ( 4 6 ) ? Using this compatible number, what is the
MA_775_DIABLO [31]

The appropriate compatible numbers to use to estimate would be 20(1/2)

estimated product is 10, took the quiz :)

8 0
3 years ago
Find the x-intercept of the parabola of with vertex (1,20) and the y-intercept (0,16). write your answer in this form: (x1,y1),(
svetoff [14.1K]
I assume that the parabola in this particular problem is one whose axis of symmetry is parallel to the y axis. The formula we're going to use in this case is (x-h)2=4p(y-k). We know variables h and k from the vertex (1,20) but p is not given. However, we can solve for p by substituting values x and y in the formula with the y-intercept:

(0-1)^2=4p(16-20)

Solving for p, p=-1/16.

Going back to the formula, we can finally solve for the x-intercepts. Simply fill in variables p, h and k then set y to zero:

(x-1)^2=4(-1/16)(0-20)
(x-1)^2=5
x-1=(+-)sqrt(5)
x=(+-)sqrt(5)+1

Here, we have two values of x

x=sqrt(5)+1 and
x=-sqrt(5)+1

thus, the answers are: (sqrt(5)+1,0) and (-sqrt(5)+1,0).
5 0
3 years ago
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