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mihalych1998 [28]
3 years ago
13

Please solve each equation & check your solution. Thank You!

Mathematics
1 answer:
Deffense [45]3 years ago
8 0

Answer:

G). 1.2x + 7.92 -3.3x = 41

-2.1x=33.08

x = 33.08/-2.1

x = - 15.752

H). 3x/2 + 9/5 = 12

Multiply through by 10

15x + 18 =120

15x =120-18

15x = 102

x =102/15

x=34/5

I). 5 = 9/4 - r/3

Multiply through by 12

60= 27 - 4r

60 - 27 = -4r

33 = - 4r

r = -33/4

J). 2(x - 2) = 12

2x - 4 = 12

2x = 16

x = 16/2

x = 8

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Answer:

x=5 and y=2.

Step-by-step explanation:

We have been given a system of equations. We are asked to solve our given system.

x+y=7...(1)

2x+3y=16...(2)

From equation (1), we will get:

x=7-y

Upon substituting this value in equation (2), we will get:

2(7-y)+3y=16

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Now, we will substitute y=2 in equation (1).

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Therefore, the point (5,2) is solution for our given equation.

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3 years ago
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Answer:

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Step-by-step explanation:

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2 years ago
How many perfect square are there between 1,000,000 and 9,000,000?​
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Step-by-step explanation:

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Hence there are squares of 1001 to 2999 I. e. 1999 perfect squares between 1,000,000 and 9,000,00

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Given the expression: sin 2x + cos x,

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sin 2x + cos x =  2 sin x cos x + cos x = (2 sin x + 1)cos x

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6 0
1 year ago
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