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3 years ago

Can someone please answer my question please answer it correctly please show work please I need please help

Mathematics

1 answer:

Kryger [21]3 years ago

4 0

Answer:

43. 171 × $4.50 = $769.50

(171 ÷ 9) × 2 = 38

38 × $7.25 = $275.50

$769.50 + $275.50 = $1,045.00

$1,045.00 × 1.04 = $1,086.80

Answer: $1,086.80 for museum tickets and parking

171 + 38 = 209

209 × $6.00 = $1,254.00

$1,086.80 + $1,254.00 = $2,340.80

Answer: $2,340.80 for the total budget

44. Equation: 2a + 10 = 70

2a + 10 = 70 (subtract 10 from each side)

2a = 60 (divide each side by two)

a = 30

Answer: 30 envelopes

45. Inequality: $2.20x + $2.40 < $9.00

$2.20x + $2.40 < $9.00 (subtract $2.40)

$2.20x < $6.60 (divide by $2.20)

x < 3

Answer: x < 3

46. 3 inches in 4 minutes

3 ÷ 4 = 0.75

Answer: 0.75 inch(es) per minute

The only time Landon's elevation changed was from minutes 4 - 10 and 14 - 18. We know that Landon's elevation changed the fastest between minutes 14 - 18, because this occurred over the shortest period of time.

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the sum of a certain number ana second number is _42.the first number minus the second number is 52 .find the number ?

Ulleksa [173]

Answer:

sorry I don't now when I now I will tell you

4 0

2 years ago

Please Helpp mee

Mekhanik [1.2K]

Answer:

Step-by-step explanation:

Perpendicular lines are lines whose slopes are negative reciprocals of each other

To find the slope of the line we are given, we can rearrange the equation

$4x - 5y = 4\\4x - 4 = 5y\\y = \frac{4}{5}(x) - \frac{4}{5}$

The slope of this line is $\frac{4}{5}$ , so the slope of the other line is $\frac{-5}{4}$

next, we can use the given point to find the equation $y = mx +b$

we know m, we can solve for b

$y = \frac{-5}{4}(x) + b\\-3 = \frac{-5}{4}(-2) + b\\-3 = \frac{5}{2} + b\\\frac{-6}{2} = \frac{5}{2} + b\\$

$b = \frac{-11}{2}$

$so,\\y = \frac{-5}{4}(x) - \frac{11}{2}$

4 0

2 years ago

PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Fiesta28 [93]

$- 10(2) + y = 4$

$- 20 + y = 4$

$y = 24$

$- 10( 1) + y = 4$

$- 10 + y = 4$

$y = 14$

$- 10(0) + y = 4$

$0 + y = 4$

$y = 4$

$- 10( - 1) + y = 4$

$10 + y = 4$

$y = - 6$

$- 10( - 2) + y = 4$

$20 + y = 4$

$y = - 16$

8 0

2 years ago

Read 2 more answers

The sum of the reciprocals of two consecutive odd integers is 24/143. find the two integers.

nordsb [41]

Let one integer be x, the consecutive odd integer is x+2
reciprocals are 1/x and 1/(x+2)
1/x +1/(x+2)=24/143
make the denominators the same:
(x+2)/[x(x+2)] +x/[x(x+2)]=24/143
143(2x+2)=24(x)(x+2)
286x+286=24x²+48x
24x²-238x-286=0
use the quadratic formula: x=22 this doesn't work because 22 is not an odd number.
or x=-2.1666666666 (this is not an integer)

weird.

4 0

3 years ago

Susan is buying three different colors of tiles for her kitchen floor. She is buying 25 more red tiles than beige tiles, and thr

Vanyuwa [196]

Let us assume that the number of beige tiles bought by Susan = B
Number of red tiles bought by Susan = R
Number of navy-blue tiles bought by Susan =N
Number of tiles bought altogether = 435
Now from the given question we know:
Number of red tiles bought is 25 more than the number of beige tiles.
So
R = 25 + B
Number of navy blue tiles bought is 3 times that of the number of beige tile bought
So
N = 3B
We already know that the total number of tiles bought is 435
Hence
B + R + N = 435
B + (25 + B) + 3B = 435
5B + 25 = 435
5B = 435 -25
5B = 410
B = 82
R = 25 + B
   = 25 + 82
   = 107
N = 3B
   = 3 * 82
   = 246
So the number of Beige tiles bought by Susan = 82
The number of red tiles bought by Susan = 107
The number of navy-blue tiles bought by Susan = 246

5 0

3 years ago