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evablogger [386]
2 years ago
15

A.)12 B.) 25 C.)51 D.) 77

Mathematics
2 answers:
d1i1m1o1n [39]2 years ago
8 0

Answer:

51

Step-by-step explanation:

2x+27=4x+3

    -3       -3

__________

2x+24=4x

___________

         2

x+12=2x

-x      -x

___________

12=x

now plug in/check answer

2(12)+27=4(12)+3

24+27=48+3

51=51

true

givi [52]2 years ago
3 0

Answer:

4x+3=2x+27

4x-2x=27-3

2x=24

x=24/2

x=12

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Answer:

85% of the job is finished.

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8 0
3 years ago
Monique said 0.70 is greater than 0.7 because 70 is greater than 7. do you agree with monique
elixir [45]
No. 0.70 is the same as 0.7, for the place value of 7 is the same for both (tenths place). In 0.70, the place value of 0 is the hundredth, which is not needed.


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7 0
2 years ago
The height of a triangle is 7 m less than its base. The area of the triangle is 30 m².
Andrej [43]

Answer:

Base 12m Height 5m

Step-by-step explanation:

Area of a triangle formula A=1/2bh

30=1/2(x)(x-7)

2*30 = 1/2(x)(x-7)*2

60 = x^2 -7x

60 - x^2 + 7x = 0

-60 + x^2 -7x = 0

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x^2 + 5x -12x -60 = 0

x(x+5)-12x-60=0

x(x+5)-12(x+5)=0

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x+5=0

x-12=0

x=-5

x-12=0

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The final answer is: x= 12,5

get rid of the -5 because -5 does not make sense at a height so turn it into 5

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Height 5m

6 0
2 years ago
Read 2 more answers
What is the answer to 4/5 + 5/12
alina1380 [7]

80

Answer:

Step-by-step explanation:

7 0
2 years ago
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