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Anna007 [38]
3 years ago
11

I need to know how to write this word problem in an algebraic expression with answer at 8 a.m. to automobile started from the sa

me place one traveled North at the rate of 49 miles per hour and the other traveled south at the rate of 56 miles per hour at what time were the automobiles 420 miles apart
Mathematics
1 answer:
frutty [35]3 years ago
8 0
Let time is t

since they both went in opposite directions then the distance between them is the sum of the distance between each of them and the origin point

49t + 56t =420  is the equation

to solve: 105t = 420 , t = 4 hours
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anygoal [31]

Answer:

2\times 15-6 = 24\ below\ sea\ level

Step-by-step explanation:

Given that:

Distance traveled by seal to catch the fish = 15 below sea level

Sea lion wanted to catch a larger fish so sea lion dove 6 feet lesser than two time the distance that the seal traveled.

To find:

The expression to represent the position of the sea lion in the sea.

Solution:

If the distance traveled by seal is represented by D then as per the question statement:

Twice of D = 2\times D

6 lesser than twice of D = 2\times D - 6

Now, putting the value of D = 15

Therefore, the expression to represent the sea lion's position w.r.to sea level.

2\times 15-6\\ = 24\ below\ sea\ level

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2 years ago
Heather's class took a field trip to the science museum. They left school at 7:30 A.M. It took
vodka [1.7K]

Answer:

10:30 A.M

Step-by-step explanation:

5 0
2 years ago
The measure of angle A is 68°. The measure of angle B is 22°. Which statement best describes the relationship between these two
stellarik [79]

Answer:

They are complementary angles.

Step-by-step explanation:

The sum of their measurements equals 90 degrees.

3 0
2 years ago
How many solutions does 9(z+8)=-9z-72 have
zloy xaker [14]

Answer:

1 solution.

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Equality Properties

Step-by-step explanation:

<u>Step 1: Define equation</u>

9(z + 8) = -9z - 72

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Distribute 9:                              9x + 72 = -9z - 72
  2. Add 9z to both sides:               18z + 72 = -72
  3. Subtract 72 on both sides:       18z = -144
  4. Divide 18 on both sides:           z = -8

Here we see that we will get only 1 solution for <em>z</em>.

4 0
2 years ago
The area of a rectangle is 44m2.The length is 3 2/3. the width is x find the missing length
zimovet [89]
A = lw
44 = 3 2/3 w
w = 44 / (3 2/3)
w = 12
5 0
3 years ago
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