K + a + h = 50
a = 2h
k = h - 10
(h - 10) + 2h + h = 50
4h - 10 = 50
4h = 50 + 10
4h = 60
h = 60/4
h = 15 <=== Henry sent 15
a = 2h
a = 2(15)
a = 30 <=== Aldo sent 30
k = h - 10
k = 15 - 10
k = 5 <=== Keiko sent 5
Rearrange so x is the subject:-
(im assuning the f unction f(x) = (x + 2) / 7):-
f(x) = (x + 2)/7
7f(x) = x + 2
x = 7f(x) - 2
replace f(x) by x and x by another function
f = 7x - 2
Its D
Answer:3.22
Step-by-step explanation:
Hope this helps
3 field goals and 5 touchdowns were made by the team.
Step-by-step explanation:
Given,
Number of times football team scored = 8
Worth of points scored = 44 points
Each touchdown worth = 7 points
Each field goal worth = 3 points
Let,
x be the number of times touchdown was made
y be the number of times field goal was made
x+y=8 Eqn 1
7x+3y=44 Eqn 2
Multiplying Eqn 1 by 7
Subtracting Eqn 2 from Eqn 3
Dividing both sides by 4
Putting y=3 in Eqn 1
3 field goals and 5 touchdowns were made by the team.
Keywords: linear equation, elimination method
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Definition of tangent of a given angle α :
tan( α ) = measure of the opposite side / measure of the adjacent side.
For the given case,
angle α = 35 °
measure of opposite side = x cm
measure of adjacent side = 12 cm
From definition of tangent,
tan(35 ° ) = x/12
Isolate and solve for x:
x=12 tan(35) = 12 * 0.7002 = 8.4 cm