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emmasim [6.3K]
3 years ago
9

the sum of the digits of a two digit number is 7 if the digits are reversed the new number was increased by 3 equals 4 times the

original number find the number​
Mathematics
1 answer:
gtnhenbr [62]3 years ago
5 0

Answer:

16

Step-by-step explanation:

61+3=64

16*4=64

64=64

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The population of a country divided by its area determines its birth/death rate birth/death rate NIR. NIR. arithmetic density ar
ioda

Answer:

Arithmetic density.

Step-by-step explanation:

The correct answer is arithmetic density. This is because for a country, it is also known as real density and it's defined as the number of people per unit area of total land in that country.

Thus, the population of a country divided by its area determines its arithmetic density

6 0
3 years ago
Can someone help me & show steps? Thank you
WARRIOR [948]

If this is a cube and each side is 6ft, each face will have an area of 6ft * 6ft, or 36ft. There are 6 faces on a cube, so 36ft * 6 = 216ft² as the surface area (it's also the same as 6³, fancy huh?)

8 0
4 years ago
The actual length of side t is 0.045 cm. Use the scale drawing to find the actual side length of w. A) 0.06 cm B) 0.075 cm C) 0.
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Answer: The answer is B 0.075 cm


Step-by-step explanation:

Since the drawings is a scale of the original you must use a proportion to solve the desired side. 0.045/.9=w/1.5;w=0.075.

5 0
3 years ago
Read 2 more answers
Convert number from scientific notation to standard notation 1.4×10^-8
shusha [124]

Answer:

Step-by-step explanation:

The answer is 0.000000014

8 0
3 years ago
The profits in hundreds of dollars, P(c), that a company can make from a product is modeled by a function of the price, c, they
Jobisdone [24]
The maximum profit is the y-coordinate of the vertex of the parabola represented by the equation.

P(c)=-20c^2+320c+5120 \\ \\
a=-20 \\
b=320 \\ \\
\hbox{the vertex } (h,k): \\
h=\frac{-b}{2a}=\frac{-320}{2 \times (-20)}=\frac{-320}{-40}=8 \\
k=f(h)=f(8)=-20 \times 8^2+320 \times 8+5120= \\
=-1280+2560+5120=6400

The maximum value is 6400, but the profit is given in hundreds of dollars, so multiply the value by 100.

The maximum profit the company can make is $640,000.
4 0
3 years ago
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