4)
12/16=21/b
multiply both sides by b
(12/16)b=21
now multiple both sides by (16/12)
b = 21 (16/12) =28
5)
rate is distance / time or time/distance
train travels 279 km per 1.5 hr =270/1.5
or
1.5 hr per 270 =1.5/27p
answer choice a and c matches that.
looking at choice C...270km/1.5hr=5hr/270km
looking at choice A.. 1.5hr/270km=5hr/k km
the units don't match for choice C so the
right answer is A
6)
1.5/270=5/k
multiply both sides by k
(1.5/270)k=21
now multiple both sides by (270/1.5)
k = (270/1.5)21= 900
7) 75 points per 6 game
75 points / 6 games
75/6=P/20
multiply both sides by 20
(75/6)20=P
P=250
Answer:
n=56 is the correct answer
3×14=42 so,
4×14=56
:)
Answer:
Hi,
Step-by-step explanation:
So it says the first six months average is 75mm. Total÷Amount =Average so Average x Amount = Total The first six months is 75 so 75x6= 470. The last six months is 15 so 15x6=90. In total, 470+90=560. We need to find the new average so we do 560÷(6+6)= 46.666666… so we round it to 46.67.
I. hope you find this helpful.
Answer: x = 30
∠H = 75
∠I = 75
Step-by-step explanation:
Write out this equation for solving interior angles
The sum of all 3 angles will equal 180
(2x+15) + (3x-15) + 30 =180
2x + 3x +30 + 15 -15 = 180
2x + 3x + 30 = 180 ( subtract 15 from 15 )
2x + 3x + 30= 180
-30 -30 ( from both sides)
2x + 3x = 150
5x = 150
Divide
x=30
Answer:
The length of each side of square is 9 cm
Step-by-step explanation:
<u><em>The question in English is</em></u>
The given figure is made up of 6 identical squares.The perimeter of the figure is 126 cm.what is the length of each side of square?
The picture of the question in the attached figure
Let
x ----> the length side of each square
we know that
The perimeter is the sum of the borders of the figure
so
In this problem
see the attached figure N 2 to better understand the problem
we have
so
solve for x
therefore
The length of each side of square is 9 cm
