the perimeter of a square is 56. The side lengths are 3 times a number increased by 2. find the value of x

Mathematics

1 answer:

Dafna11 [192]3 years ago

6 0

The value of x would equal 4.

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Make c the subject of the formula in the equation a=b√x+c

neonofarm [45]

A = b√x+c
a/b = √x+c
(a/b)^2 = x + c
(a/b)^2 - x = c

5 0

3 years ago

36 red beads, 49 green and 76 blue beads are to be packed into packets, each containing 3 red, 5 green and 7 blue beads respecti

lakkis [162]

9 packets.

36 divided by 3 = 12
49 divided by 5 = 9.8
76 divided by 7 = 10.8

Maximum packets that can be obtained is 9 packets because only 9 packets with 5 green beads each can be packaged.

6 0

3 years ago

Solve and check 0.18(5x – 4) = 0.5x + 0.8

stiv31 [10]

Answer:

3.8

Step-by-step explanation:

0.18(5x – 4) = 0.5x + 0.8
0.9x - 0.72= 0.5x +0.8
0.9x- 0.5x= 0.8+0.72
0.4x= 1.52
x= 1.52/0.4
x= 3.8

----------

0.18(5*3.8 - 4)= 0.5*3.8 + 0.8
0.18*15= 1.9 + 0.8
2.7=2.7

3 0

3 years ago

Read 2 more answers

What is the solution to the system of eqautions? y=2/3x+3, x=-2

morpeh [17]

Answer:
(-2, 5/3)
Step-by-step explanation:
Step 1: Write out systems of equations
y = 2/3x + 3
x = -2
Step 2: Substitution
y = 2/3(-2) + 3
y = -4/3 + 3
y = 5/3
Step 3: Write solution
(-2, 5/3)

8 0

3 years ago

A stock's value in dollars changed by -5.75 on Monday and +3.25 on Tuesday. Which statement correctly compares the changes in th

Svet_ta [14]

Complete Question:

A stock’s value in dollars changed by -5.75 on Monday and +3.25 on Tuesday. Which statement correctly compares the changes in the stock’s value?

A. The value changed more on Monday because |-5.75| greater than |3.25|.

B. The value changed more on Monday because -5.75 less than 3.25.

C. The value changed more on Tuesday because +3.25 greater than 0.

D. The value changed more on Tuesday because 3.25 greater than. 25.75.

Answer:

A. The value changed more on Monday because |-5.75| greater than |3.25|.