Answer: 12 weeks
She starts with 500 dollars
operation: If Keith starts with
$
500
and wants to end with (at least)
$
200
he can withdraw up to
$
500
−
$
200
=
$
300
If he withdraws
$
25
week
the
$
300
will last
XXX
$
300
$
25
week
=
12
weeks
Step-by-step explanation:
Answer:
£8.58
Step-by-step explanation:
£26 x 0.33 = £8.58
Start with
Multiply both sides by 9:
Divide both sides by 5:
Add 32 to both sides:
The lack of parenthesis makes it hard for me to understand what you mean with aC+b/c, since it could be both
or
Answer:
The required specific heat is 196.94 joule per kg per °C
Step-by-step explanation:
Given as :
The heat generated = Q = 85.87 J
Mass of substance (m)= 34.8 gram = 0.0348 kg
Change in temperature = T2 - T1 = 34.29°C - 21.76°C = 12.53°C
Let the specific heat = S
Now we know that
Heat = Mass × specific heat × change in temperature
Or, Q = msΔt
Or, 85.87 = (0.0348 kg ) × S × 12.53°C
Or , 85.87 = 0.4360 × S
Or, S =
∴ S = 196.94 joule per kg per °C
Hence the required specific heat is 196.94 joule per kg per °C Answer
Answer:
a = 10
Step-by-step explanation:
Since the quantities vary directly then the equation relating them is
y = kx ← k is the constant of variation
To find k use the point (2, 5 ) with x = 2 and y = 5
k = = = 2.5
y = 2.5x ← equation of variation
Using the point (4, a) with x = 4, then
y = a = 2.5 × 4 = 10