<span>10x + 7y = 49
</span><span>10y – x = 70 so x = 10y - 70
substitute </span>x = 10y - 70 into 10x + 7y = 49
10x + 7y = 49
10(10y - 70) + 7y = 49
100y - 700 + 7y = 49
107y = 749
y = 7
x = 10y - 70 = 10(7) - 70 = 0
answer
(0, 7)
hope it helps
Mr. Brown can make fewer than 6 full groups to give presentations.
<h3>Inequality</h3>
Inequality is an expression used to show the non equal comparison of two or more numbers and variables.
Let x represent how many full groups Mr. Brown can make.
He wants each group to have 4 students. There are fewer than 24 students in class today, hence:
Mr. Brown can make fewer than 6 full groups to give presentations.
Find out more on inequality at: brainly.com/question/11613554
Answer:
$16
Step-by-step explanation:
4 * 8 = 32
32/ 2 = 16
If she saves four dollars a week for eight weeks and divides her savings to donate to two charities, each charity would recieve $16
I believe the answer could be 13n.
