Answer:
The larger is 14 the smaller is 8
Explanation:
Let the larger number be L and the smaller be S
So we know that
1) L+S=22
And
2)4L=7S
From equation 1) we get L=22-S
Substitute this into equation 2) to get 4(22-S)=7S
88-4S=7S
88=11S
S=8. The smaller number is 8
As they total 22 the larger number is 14.
Check: 4x14=7x8. Yes
Solution 2:
Let x= larger number
And let y= smaller. umber
Now we are told that:
4x=7y--------eq1
We are also told that:
x + y=22-----eq2
Substitution method looks easier.
From eq1 x=(7/4)y. Substitute this into eq2
(7 /4)y +y=22
(7/4)y+(4/4)y=22
(11/4)y=22 multiply each side by 4
11y=88
y=8
From eq2, x+8=22
x=14
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<span>Hope this helps</span>
Answer:
Arithmetic
An = A[n - 1] + 3/5
An = 3/5[n]
Step-by-step explanation:
Number of days = 5
Number of chocolate = 3
Computation:
Recursive:
Number of chocolate eat per day = 3/5
So,
First term a1 = 3/5
So,
An = A[n - 1] + 3/5
Explicit:
An = 3/5 + 3/5[n-1]
An = 3/5[n]
A relation is a set of ordered pairs (x, y).
The set of all first coordinates, that is of all x'es, is the Domain of the relation.
The set of all the second coordinates is the Range of the relation.
1)
Domain : {-1, 1, 3}, Range: {-5, -4, 2}
2)
Domain : {-1, 1, 3}, Range: {-4, -2, 2}
Answer: 1) {-5, -4, 2}, 2) {-1, 1, 3}
Remark: Each number is written only once in the Domain and Range set.