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mart [117]
3 years ago
12

Solve 3/4x =9 work and answer please

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

Answer:

1/12

Step-by-step explanation:

remove fraction, multiply 4x on both 3/4x and 9

becomes

3=36x

36x=3

x=3÷36=1/12

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7. Which two equations are equivalent?
sineoko [7]

Answer:

C. y=(x-3)^2 and y=x^2-6x+9

Step-by-step explanation:

before answering the problem let us remind the formula for square of sum and differences

(a+b)^2=a^2+2 \times a \times b + b^2

(a-b)^2=a^2-2 \times a \times b + b^2

We are going to use the above two formulas to solve each part and come to an answer

A. y = (x + 3)^2

(x + 3)^2=x^2+2 \times x \times 3 + 3^2

(x + 3)^2=x^2+6x+9

Hence this option is not correct pair

B. y = (x-5)^2

(x - 5)^2=x^2-2 \times x \times 5 + 5^2

(x -5)^2=x^2-10x+25

Hence this option is also not correct pair

C. y = (x -3)^2

(x - 3)^2=x^2-2 \times x \times 3 + 3^2

(x -3)^2=x^2-6x+9

Hence this option is correct as it have equivalent pair

D. y = (x + 5)^2

(x + 5)^2=x^2+2 \times x \times 5 + 5^2

(x + 5)^2=x^2+10x+25

Hence this option is also not correct pair

6 0
4 years ago
...........................
Arisa [49]

Answer:

B) b√a

Step-by-step explanation:

b√a

8 0
3 years ago
Aliana uses beads that are 5/4 Centimeters long she uses three beads altogether how many centimeters of beads will Aliana use fo
Serga [27]

Answer:

Length of beads altogether in the necklace = 3.75 cm

Step-by-step explanation:

Length of the beads used in a necklace = \frac{5}{4} cm

Number of beads used in the necklace = 3

Therefore, length of beads in the necklace = Length of each bead × Number of beads used

= \frac{5}{4}\times 3

= \frac{15}{4}

= 3.75 cm

Length of the beads altogether in the necklace = 3.75 cm

3 0
3 years ago
Both 2 and 5 are common factors of a number. The number in between 101 and 118. What is the number? Give a reason for your answe
Deffense [45]
110
2 and 5 are prime and thus share no common factors. The lowest common multiple of 2 and 5 is therefore 2 x 5 = 10. 

Your answer must be a multiple of 10 and there is only one answer in that range that fits. 

Double-check: 
110 / 2 = 55 r. 0 
110 / 5 = 22 r. 0 

3 0
4 years ago
Santo made 4 less than twice as many cupcakes as Lynn. Write an equation to represent the number of cupcakes that Santo made.
pickupchik [31]

Santo made 4 less than twice as many cupcakes as Lynn.


x * 2 - 4

5 0
3 years ago
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