Answer:
x= 16 and y = 9
Step-by-step explanation:
1 st equation ; x+y = 25
2 nd equation ; x- y = 7
from 1 st equation
x = 25 - y
now putting value of x in 2 nd equation
x- y = 7
25 - y-y = 7
25 -2y =7
25-7 = 2y
18 = 2y
18/2 = y
y = 9
again
putting value of y in 1 st equation
x = 25-y
x = 25-9
x= 16
<span><span><span>x^2</span></span><span><span>+<span>4x</span></span><span>-5</span></span></span> using the AC method.<span><span><span>(<span>x<span>−1</span></span>)</span><span>(<span>x+5</span>)/</span></span><span>1<span>−<span>x
which gives you -x-5</span></span></span></span>
13d+25≤121 represent the inequality to find the number of days.
Step-by-step explanation:
Flat rental fee of equipment = $25
No. of days = d
Per day fee = $13
Amount Kyle has = $121
According to given statement,

As the amount is $121, therefore, the total cost can either be a total of $121 or less.
13d+25≤121 represent the inequality to find the number of days.
Keywords: Linear inequalities
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Answer:
7/1
Step-by-step explanation:
There are 7 players if the coach randomly draws a name that determines who stays on the bench there is a 1/7 chance Brianna will stay on the bench because there are 7 people and Brianna is 1 of them
Y =ax² + bx +c
1) Point (0,7)
7 = a*0² +b*0 +c
c = 7
y=ax² + bx + 7
2) Point (1,4)
4=a*1² + b*1 + 7, ----> 4 = a +b + 7, ------>
a+b= - 3
3) Point (2, 5)
5=a*2² + b*2 + 7, ----> 5=4a+2b +7,---> -2=4a+2b, ---->
-1=2a + b
4)
a+b= - 3, ----> b= -3 - a (substitute in the second equation)
2a+b= -1
2a - 3 - a = -1, ----> a - 3 = -1,
a =2
5) a+b= - 3
2 + b = -3
b = -5
y=2x² - 5x + 7