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weqwewe [10]
3 years ago
15

Solve the following system of equations using elimination (multiplication)

Mathematics
1 answer:
Alecsey [184]3 years ago
6 0
X= 3 y=3

(3)2x+y=9
4x-3y=3

6x+3y=27
4x-3y=3
——————
10x=30
—————-
10
x=3

2(3)+y=9
6+y=9
-6. -6
y=3
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52.5% of what number is 25.83?
xxTIMURxx [149]
Given:
25.83 - part
52.5% percentage of the part against the whole

To get the whole number, we need to divide the part by its corresponding percentage.

25.83 ÷ 52.50% = 49.20

49.20 is the whole number wherein 25.83 represents 52.50% of it.
6 0
3 years ago
A box in the shape of a rectangular prism has a width that is 5 inches greater than the height and a length that is 2 inches gre
aliina [53]

The volume of the rectangular prism can be express in standard polynomial as follows:

x³ + 12x² + 35x

<h3>How to find the volume of a rectangular prism?</h3>

volume of a rectangular prism = lwh

where

  • l = length
  • w = width
  • h = height

Therefore,

let

height = x

width = x + 5

length = x + 5 + 2 = x + 7

Therefore,

volume = x(x + 5)(x + 7)

volume = x(x² + 7x + 5x + 35)

volume = x(x² + 12x + 35)

volume = x³ + 12x² + 35x

learn more on volume here: brainly.com/question/2005063

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7 0
2 years ago
Write an algebraic expression for each of the statements below.
4vir4ik [10]

Answer:

i) 3x + 7

ii) x/3 = 9

iii) y = 2x +4

iv) y = 6x

5 0
2 years ago
Please help!! choices for for the first one is $5, $15, $10, $20
vodka [1.7K]

Answer:

5, 240

Step-by-step explanation:

7 0
3 years ago
Last year, 210 middle school students
Anit [1.1K]

Answer:

8%

Step-by-step explanation:

let,

this year population of students (pt)= 195

last year population of students (p)= 210

time(t)= 1 year

Population Change( R)= ?

we have,

pt= p( 1 - R/100)^t

195 = 210 ( 1 - R/100)^1

0.92= 1 - R/100

0.92-1= R/100

- 0.08 = - R/100

R= 0.08×100

R= 8%

5 0
3 years ago
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