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mr Goodwill [35]
3 years ago
13

Name two different numbers that round to 30 when rounded to the nearest ten

Mathematics
1 answer:
kkurt [141]3 years ago
6 0
29 and 31
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The sum of two number is 45.if one of them is 27 ,find another​
tekilochka [14]

Answer:

is 18

Step-by-step explanation:

simple you just subtract 27 for the original number

8 0
3 years ago
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Two buildings on opposites sides of a highway are 3x^3- x^2 + 7x +100 feet apart. One building is 2x^2 + 7x feet from the highwa
iVinArrow [24]

Given:

Distance between two buildings = 3x^3- x^2 + 7x +100 feet apart.

Distance between highway and one building = 2x^2 + 7x feet.

Distance between highway and second building = x^3 + 2x^2 - 18 feet.

To find:

The standard form of the polynomial representing the width of the highway between the two building.

Solution:

We know that,

Width of the highway = Distance between two buildings - Distance of both buildings from highway.

Using the above formula, we get the polynomial for width (W) of the highway.

W=3x^3- x^2 + 7x +100-(2x^2 + 7x)-(x^3 + 2x^2 - 18)

W=3x^3- x^2 + 7x +100-2x^2-7x-x^3 -2x^2+18

Combining like terms, we get

W=(3x^3-x^3)+(- x^2 -2x^2-2x^2)+ (7x -7x)+(100 +18)

W=2x^3-5x^2+0+118

W=2x^3-5x^2+118

Therefore, the width point highway is 2x^3-5x^2+118.

8 0
3 years ago
Car Acosts $10 36 per 100 miles to drive, while car B costs $6.64 per 100 miles to drive How much more would car A cost to drive
Ulleksa [173]

Answer:

$21.58 or $21.576

Step-by-step explanation:

580 ÷ 100 = 5.8

$10.36 × 5.8 = $60.088

$6.64 × 5.8 = 33.512

60... - 33... = $21.576

4 0
3 years ago
Read 2 more answers
What is the solution to log Subscript 5 Baseline (x + 30) = 3
GarryVolchara [31]

Answer:

The correct option is option (d).

Step-by-step explanation:

Logarithms are used basically to express large number.

Rules:

  • log_a(M.N)= log_aM+log_aN
  • log_a(\frac{M}{N})= log_aM-log_aN
  • log_a(M^k)=klog_aM
  • log_a(1)=0
  • log_a(a)=1
  • b^{log_{b}k}=k
  • log_ab=c \Leftrightarrow b=a^c

Here given that,

log_5(x+30)=0

Applying the last rule

\Rightarrow (x+30)= 5^3

\Rightarrow x+30 = 125

⇒x=125-30

⇒x=95

Therefore x=95.

5 0
4 years ago
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Simplify the expression: 7 - 7(5 + x) - 9x
umka21 [38]
7 - 35 - 7x - 9x
-28 -16x
8 0
4 years ago
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