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Orlov [11]
3 years ago
12

Kayla's family took a road trip to Mount Rushmore. Kayla fell asleep after they had traveled 275 miles. If the total length of t

he trip was 500 miles, what percentage of the total trip had they traveled when Kayla fell asleep?
Mathematics
1 answer:
Iteru [2.4K]3 years ago
7 0
The answer is 55 percent.
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Q =3x2+5x-2 R = 2 – x2 S = 2x + 5 Find Q – [R + S] Show all of the steps.
matrenka [14]

Q=3x^2+5x-2\\R=2-x^2\\S=2x+5\\\\Q-[R+S]=(3x^2+5x-2)-[(2-x^2)+(2x+5)]\\\\=(3x^2+5x-2)-(2-x^2+2x+5)\\\\=(3x^2+5x-2)-[-x^2+2x+(2+5)]\\\\=(3x^2+5x-2)-(-x^2+2x+7)\\\\=3x^2+5x-2-(-x^2)-2x-7\\\\=3x^2+5x-2+x^2-2x-7\\\\=(3x^2+x^2)+(5x-2x)+(-2-7)\\\\=\boxed{4x^2+3x-9}

5 0
3 years ago
What is the distance between the points (2, -7) and (-3, -2) on the coordinate plane?
zalisa [80]
-5, 5 there u go cuhhhhhhhhh

4 0
3 years ago
PLEASE HELPPP (NO LINKS) (NO LINKS) (NO LINKS)
rosijanka [135]

Answer:

  • B, B, C

Step-by-step explanation:

1.

Shirts cost $20 each and ties cost $12 each.

<u>Expression for the cost:</u>

  • 20s + 12t

Correct choice is B

2.

<u>An expression that represents 40% of a number is:</u>

  • 40*n/100 = 0.4n

Correct choice is B. False

3.

t = -2, x = 3 and z = 5

  • 4z + 3x − t =
  • 4*5 + 3*3 - (-2) =
  • 20 + 9 + 2 =
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Correct choice is C. 31

3 0
3 years ago
Read 2 more answers
You are going to purchase a new iPhone for $479.99 and you have 2 coupons but can only use one. The first coupon is $100 off the
bonufazy [111]

Answer:100 off discount

Step-by-step explanation:

If you use the 20% discount you get only 95 dollars off the price

3 0
3 years ago
Mona's math certificate is 10 inches tall and 14 inches wide. Mona wants to put the certificate in a fancy frame that costs $1.0
swat32

Answer:

$48.96

Step-by-step explanation:

Given data

Length= 10inches

Width=14 inches

Let us find the perimeter of the  certificate

P=2L+2W

P= 2*10+2*14

P=20+28

P= 48 inches

Hence if 1 inche cost $1.02

Then 48 inches will cost x

cross multiply we

x= 48*1.02

x= $48.96

Hence it will cost $48.96 to frame the certificate

6 0
3 years ago
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