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stellarik [79]
3 years ago
12

A factory worker loaded some boxes onto a cart . Each box has the same weight . This expression represents the total weight in p

ounds , of the cart and n boxes 10n + 25 Based on the expression , what is the weight , in pounds , of the cart ?
Mathematics
1 answer:
enot [183]3 years ago
8 0

Answer:

25 pounds

Step-by-step explanation:

Sum of the weight of the boxes of the cart = 10n + 25

where n = number of boxes

10 would be the weight of each box.

total weight of the boxes = weight of each box x number of boxes

10 x n = 10n

The other variable is 25. this is the weight of the cart

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S_A_V [24]
So first I’m going to change the 10 kilometre in miles which is 6.214 miles
Then I’m going to convert 7800 seconds in hours which is 2.16 hours so now the data shows that Trisha biked 8 miles in 2 hours and becca biked 6.214 miles in 2.16 hours
So Trisha was faster than becca
4 0
3 years ago
Please help me with this question
Olegator [25]

Answer:

x = 11

Step-by-step explanation:

Since we are given triangle PQR is similar to triangle PTU, we can write a proportion to connect the side lengths:

PQ / PT = QR / TU = PR / PU

We don't really care about QR and TU because the are irrelevant to the problem, so we can remove them:

PQ / PT = PR / PU

Now, we can substitute the values given by the diagram:

70 / 30 = 49 / (x + 10)

We can cross multiply,

70(x + 10) = 30 * 49

And divide by 70 on both sides(too lazy to multiply :P)

x + 10 = 3 * 7

x + 10 = 21

x = 11

5 0
3 years ago
Can some one explain to me what substitution is and how to use it to solve equations?
Yakvenalex [24]

Answer:

Step-by-step explanation:

Say that your equation is 2x+4=8, x=2

you would plug in the 2 where your x is so, 2(2) +4=8

then you'd solve regularly.

Hope my answer has helped you!

5 0
3 years ago
A car rental company charges $31 per day to rent a particular type of car, and $0.19 per mile. Juan is charged $59.31 for a one-
snow_lady [41]

x = # of miles

$59.31 = $31 + $0.19x

Subtract $31 from both sides

$28.31 = $0.19x

Divide both sides by $0.19

149 = x

Juan drove 149 miles

5 0
3 years ago
Determine the rate of change between the points (-1,-1) and (1,-1).
AVprozaik [17]

Answer:

\displaystyle m = 0

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

Coordinate Planes

  • Coordinates (x, y)
  • Slope Formula: \displaystyle m = \frac{y_2 - y_1}{x_2 - x_1}

Step-by-step explanation:

*Note:

Rate of change is slope.

<u />

<u>Step 1: Define</u>

<em>Identify.</em>

Point (-1, -1)

Point (1, -1)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>.

  1. Substitute in points [Slope Formula]:                                                              \displaystyle m = \frac{-1 + 1}{1 + 1}
  2. [Order of Operations] Simplify:                                                                        \displaystyle m = \frac{0}{2}
  3. Simplify:                                                                                                             \displaystyle m = 0
4 0
3 years ago
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