Answer:
4.5
Step-by-step explanation:
First we need to turn the ratio of 1 : 3 into a fraction
1:3 = 1/3
Next we need to square that fraction
1 x 1 = 1
3 x 3 = 9
Then we turn those numbers into a fraction
1/9
We turn the .5 into a fraction
.5/x
And cross multiply both fraction by each other
1/9 x .5/x
1 x X = X
9 x .5 = 4.5
So
4.5 = X
Answer:
r - 5 = 2c
r = 75
Step-by-step explanation:
To write an equation for the problem, we first need do declare the value of the number of apps cora has.
Let c = Cora's apps
r - 5 = 2c
r - 5 is used to indicate that Rita deleted 5 apps.
2c is used to represent the twice the number of apps Cora has.
Now you said that Cora had 35 apps.
Let's plug that into the equation.
r - 5 = 2c
r - 5 = 2(35)
r - 5 = 70
Now we transpose the -5 to the other side to leave r.
r = 70 + 5
r = 75
So if Cora has 35 apps, then Rita will have 75 apps.
Answer:
d=30-5c/2
Step-by-step explanation:
Move all terms that don't contain d to the right side and solve
Answer:
x = 23
Step-by-step explanation:
These angles are equal to each other because they're vertical angles:
2x + 1 = 47
2x = 47 - 1
2x = 46
x = 23
14 times 0.999 blank 14
probably it is a relation symbol
=
>
<
<u>>
<</u>
so we know that x times 1=x
therefor
x times (less than 1)<x
0.999 is less than 1
0.999<1
therefor
14 times 0.999<14
blank is <
