Answer:
im pretty sure it is 2m + 10
bc the min is going up by 2 every time and the gallons are going up by 10 each time
Step-by-step explanation
i commented b4 i actually answered it bc it wouldnt let me sry
Answer:
y =2x +1
Step-by-step explanation:
no step by step explanation
2
n
−
7
=
19
Explanation:
Well first we should look at the part that says "twice a number"
This number can be anything so let's assign a variable to it
Let
n
=
a number
And we also see at the end "twice a number equals 19"
So we get
2
n
=
19
Then we see that "Seven less than"
2
n
all equals
19
So we get
2
n
−
7
=
19
Now if you would want to solve this equation you first add
7
to both sides and we get
2
n
=
26
Then we divide both side by
2
So
n
=
13
Answer:
161 pounds
Step-by-step explanation:
There are two ways to do this
ratio is 2:5
Amanda : Wim
from the ratio we know that the whole is 2+5 = 7 parts
so Amanda gets 2/7 parts and Wim gets 5/7 parts
Wim gets 115 which means that his part is equal to that amount of money
5/7 = 115
so we can find for all of the parts in two different ways.
1. Either we find Amanda's part and add it to Wim's part to find the total like this:
If 5/7 = 115 then
1/7 = 115/5
= 23
Amanda's part = 2/7
2/7 = 23×2
= 46 pounds
total = 115 pounds + 46 pounds
= 161 pounds altogether
OR
2. Just find the whole:
If 5/7 = 115
then 1/7 = 115/5
=23
and 7/7 (which is the whole) = 23×7
= 161 pounds altogether
Hope that helps
Answer:
a)13
a)45
a)27
a)15
Step-by-step explanation: