MATHEMATICS MIDDLE SCHOOL

A certain color is made by blending red paint and blue paint in a 9:4 ratio. How many liters of each are needed to make 65 liters of this color?

Answers

Answer 1
Answer: you would need 6.9 liters  

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X^2=14x-49. i just dont know how to do the steps to solve this equation

Which answer best describes the solution to the equation −12j + 4 = −4 – 12j?

A.
one solution

B.
no solution

C.
an infinite number of solutions

D.
j = 3

Answers

Answer and explanation in attachment below.
ok.. so -12j+4=-4-12j
                  -4=  -4
              -12j = -8 -12j
              +12j= -8 +12j 
                   0=-8 

I think it is b. no solution 

The Hu family goes out for lunch, and the price of the meal is $49. The sales tax on the meal is 7%, and the family also leaves a 20% tip on the pre-tax amount. What is the total cost of the meal?

Answers

Answer:

50 balls

Step-by-step explanation:

First divide 10 by 2=5x10

Someone tell me the answer please

Answers

y=-1/3+5

hope this helps have a great day :)

What is 5 less than a number y is under 20

Answers

under\ 20\to < 20\n\n5\ less\ than\ a\ number\ y\to y-5\n\ntherefore\n\n\boxed{y-5 < 20}

The requried number y must be less than 25 in order for the statement "5 less than a number y is under 20" to be true.

The phrase "5 less than a number y is under 20" can be represented as an inequality:

y - 5 < 20

This inequality states that if we subtract 5 from a number y, the result will be less than 20.

To solve this inequality for y, we can isolate y by adding 5 to both sides of the inequality:

y - 5 + 5 < 20 + 5

y < 25

Therefore, the number y must be less than 25 in order for the statement "5 less than a number y is under 20" to be true.

Learn more about inequality here:

brainly.com/question/29128822

#SPJ6

I Need Help PLease!Ashton estimates the square root of 72 in the following way:
√72=
2√36=
2×6=12
Explain why his reasoning is incorrect.
Estimate the square root of 72 to the nearest tenth without using your calculator. Show your work.
Answer:

Answers

Answer:

\sqrt {72} = 6\sqrt 2

Step-by-step explanation:

Ashton estimates the square root of 72 in the following way:

√72=

2√36=

2×6=12

a) Explain why his reasoning is incorrect

This is incorrect because \sqrt2 * 6 is the correct answer but he has missed the square root term on 2.

=\sqrt {2^2X2X3^2 }

=\sqrt {2^2} \sqrt 2 \sqrt {3^2 }

=2 X \sqrt 2 X 3

= \sqrt 2 X 6

or can be written as:

= 6\sqrt 2

b) Estimate the square root of 72 to the nearest tenth without using your calculator. Show your work.

Find the factors of 72 we get \sqrt {2X2X2X3X3 }  

Now, we will combine 2 terms if the are same so,

=\sqrt {2^2X2X3^2 }

=\sqrt {2^2} \sqrt 2 \sqrt {3^2 }

=2 X \sqrt 2 X 3

= \sqrt 2 X 6

= 6\sqrt 2

\sqrt {72} = 6\sqrt 2

it costs kerry $400 to build a tree house. He sells the tree house to Nannette and make a 48% profit. How much does Nannette pay for the tree house.

Answers

Answer:

592$

Step-by-step explanation:
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