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quester [9]
3 years ago
11

I'm failing my math class and need help ):

Mathematics
1 answer:
jek_recluse [69]3 years ago
8 0
Take first number as x
 <span />second number is 3x
 <span />third number = 3x+5 <span> </span>

<span> </span> twice the third is 5 less than second, means second minus 2 times third is equal to five or 3x-2(3x+5)=5..........Answer is D
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Module 3 DBA: What key features can be identified from graphs of polynomials of higher-
Ksju [112]

Answer:

Bro Man thats OP

Step-by-step explanation:

4 0
2 years ago
Hi, Please i need help with this question. Workings would be deeply appreciated .
kupik [55]

Answer:

k = ⅕  

Step-by-step explanation:

The slope-intercept equation for a straight line is

y = mx + b, where

m = the slope and

b = the y-intercept

Data:

(3,4)     = a point on the line

(3k,0)   = x-intercept

(0,-5k) = y-intercept

Calculations:

1. Slope

m = (y₂ - y₁)/(x₂ - x₁) = (-5k - 0)/(0 - 3k) = -5/(-3) = ⁵/₃

This makes the equation

y = ⁵/₃x - 5k

2. k

Insert the value of the known point: (3,4)

4 = (⁵/₃)(3) - 5k

4 = 5 - 5k

-1 = -5k

k = ⅕

The figure below shows your graph passing through (3,4) with intercepts 3k and -5k on the x- and y-axes respectively .

 

8 0
3 years ago
A construction worker is tasked with tiling two square rooms, room A and room B. Room B has side lengths that are double the sid
swat32

Answer:

<u><em>4 boxes of tiles.</em></u>

Step-by-step explanation:

Both rooms are square, so each has equal sides.  Let's set a side to room A as x.  It's area would be x^2.  Room B has sides = 2x, so it's area would be (2x)^2 or 4x^2.  The ratio of the areas B/A = 4x^2/x^2.  B/A = 4.

Room B has 4 times the area of A.  If one box of tile completes Room A, Room B would need four times that amount, or 4 boxes.

4 0
2 years ago
a box 750 grams. there are 25 such boxes. what is the total weight of the boxes in kilograms? give your answer to the nearest te
madam [21]
750 x 25 = 18750 grams
there are 1,000 grams in a kilogram, so divide 18750 by 1,000 to get 18.750 kilograms. Rounded to the nearest tenth is 18.8 kilograms
6 0
3 years ago
Which number is the answer
const2013 [10]

Answer:

1

Step-by-step explanation:

32-24 gives you 8

So she only needs one.

7 0
3 years ago
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