Answer: -5g + 15h - 25 = -5 × (g - h + 5)
Step-by-step explanation:
Step-by-step explanation:
first we do this -5g = -5 × g
then 15h = 5 × 3h
so, -25 = -5 × 5
when -5g + 15h - 25 = -5 × g - (-5 × 3h) + (-5 × 5)
the answer is = -5 × (g - h + 5)
According to the Factors of a Negative Number
First The factors of a number entail all of the numbers that can be multiplied by one another to produce that many numbers.
According to The laws of multiplication that the state when a negative number is multiplied by a positive number then also the product will be negative.
Although when the Factors are those numbers. when it is multiplied with together then the result is another number, which is known as a product.
It is assumed that the number of trees still alive is given by N = art
where / is the number of trees still alive t years after 1st September 2014.
a) Write down the value
c) Show that on 1st September 2040
the number of trees still alive is predicted
o have decreased by over 65% compared
with September 2014.
b) Show that r = 0.96
Answer:
1. a = 5400
2. r = 0.96
3. Percentage decrement = 65.4%
Step-by-step explanation:
Given
N = ar^t
Solving (a): Write down the value of a
a implies the first term
And from the question, we understand that the initial number of trees is 5400.
Hence,
a = 5400
Solving (b): Show that r = 0.96
Using
N = ar^t
When a = 5400, t = 1 i.e. the first year and N = 5184
Substitute these values in the above expression
5184 = 5400 * r¹
5184 = 5400 * r
5184 = 5400r
Solve for r
r = 5184/5400
r = 0.96
Solving (c): Show that the trees has decreased by over 65% in 2040
First, we need to calculate number of years (t) in 2040
t = 2040 - 2014
t = 26
Substitute 26 for t, 5400 for a and 0.96 for r in N = ar^t to get the number of trees left
N = 5400 * 0.96^26
N = 1868.29658019
N = 1868 (approximated)
Next, we calculate the percentage change as thus:
%Change = (Final - Initial)/Initial * 100%
Where the initial number of trees =5400 and final = 1868
%Change = (1868 - 5400)/5400 * 100%
%Change = -3532/5400 * 100%
%Change = -3532%/54
%Change = -65.4%
The negative sign indicates a decrements or reduction.
Hence, percentage decrement = 65.4% and this is over 65%
solve for x
Answer:
a system of equations , as below
Step-by-step explanation:
4y-x
2x-4
x+y
use any two of the above to find a formula for one of the variables since they are all equal to each other.. btw.. it makes it much easier .. that they are all equal. :)
2x-4=x+y ⇒ x-4=y use this to plug into the y in the top formula
4(x-4)-x=2x-4 ⇒ 4x-16-x=2x-4 ⇒ 3x-16=2x-4 ⇒ x=12 yay! ;) now plug in 12 for x
2(12)-4=(12)+y ⇒ 24-4 = 12 +y ⇒ 8=y yay ! now we have both x and y
x=12
y= 8
this checks by plugging in the two number found for x & y (btw I had to try this about 4 times ) :P I kept messing up the algebra which is soooo easy to mess up.
3 2/3 ÷ 1 1/4
Make the two mixed fractions into an improper fraction
Denominator times whole number. 3*3=9. Add 9 with the numerator. 9+2=11
1*4=4 . 4+1=5
11/3 ÷ 5/4
Flip over the second fraction only when dividing
11/3 *4/5
Multiply the numerator together. Multiply the denominator together.
11*4=44
3*5=15
44/15 or 2 14/15
Answer: 44/15 or 2 14/15
Step-by-step explanation:
Change into improper fractions:
Change to a multiplication problem:
Simplify:
or
or 2.93333333333
Depends on how the question wants you to put it. You can put it as an improper fraction, a proper fraction, or as a decimal.
Hope this helped ; )
B. 9 cm
C. 8 cm
D. 6 cm
Answer:
Is letter D. X=6.
Step-by-step explanation:
3/4.5= 4/QR
18/3=6
Answer:I think it c
Step-by-step explanation:
Answer:
I think that is the C
Step-by-step explanation:
Answer:
Option B is the correct answer.
Step-by-step explanation:
here, arc RT =162°
as in question given that the value of arc RT is 162° the value of angle RST is 1/2 of 162°.
so, its value must be 81°only.
hopeit helps..
Answer:
The answers are A and C
Step-by-step explanation:
A is correct because -16 is on the left of the number line.