MATHEMATICS MIDDLE SCHOOL

(02.02 MC)Tim mixed 2 parts vinegar and 5 parts water to make a cleaning liquid. How many parts of vinegar did Tim mix with each part of water?

one over ten
one over five
two over seven
two over five

Answers

Answer 1
Answer:

Answer:

2/5 or two over five

Step-by-step explanation:

2:5

Divide each by 5

2/5 : 1

2/5 * 1

2/5
Answer 2
Answer:

Answer: 2 over 7

Step-by-step explanation:

2/(2+5) = 2/7

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The square of the sum of two numbers is 144 and the sum of their square is 180, find the numbers ​

Answers

Answer:

x = 13.35, y = - 1.35

or, x = 1.35, y = - 13.35

or, x = - 13.35, y = 1.35

Step-by-step explanation:

Let us assume that x and y are the two numbers.

So, given that (x + y)² = 144

⇒ x² + 2xy + y² = 144 ........ (1)

⇒ x + y = ± 12 ......... (2)

Again, x² + y² = 180 ........... (3)

Now, from equations (1) and (3) we can write 2xy + 180 = 144

⇒ 2xy = - 36

⇒ xy = - 18 ........ (4)

Now, for x + y = 12

⇒ x - (18)/(x) = 12

⇒ x² - 18 = 12x

⇒ x² - 12x - 18 = 0

Using the quadratic formula

x = \frac{12 \pm \sqrt{(-12)^(2) - 4(1)(-18) } }{2}

⇒ x = (12 \pm 14.7)/(2) = 13.35, 1.35

Now, for x = 13.35, from equation (4) we get, y = - 1.35

And for x = 1.35, from equation (4) we get, y = - 13.35

Now, for x + y = - 12

⇒ x² + 12x - 18 = 0

Using the quadratic formula,

x = \frac{- 12 \pm \sqrt{12^(2) - 4(1)(-18)}}{2}

⇒ x = (- 12 \pm 14.7)/(2) = 1.34, -13.35

Now, for x = - 13.35, from equation (4) we get, y = 1.35

And for x = 1.35, from equation (4) we get, y = - 13.35

Therefore, x = 13.35, y = - 1.35

or, x = 1.35, y = - 13.35

or, x = - 13.35, y = 1.35 (Answer)

What's the answer Will award brainiest

Answers

The answer is A. Again you should get the app CY math it shows you how to do it step by step. Brainiest?
​​

Answer:

A.  x = log 14 - 1

                4

Step-by-step explanation:

10⁴ˣ ⁺ ¹ + 3 = 17

10⁴ˣ ⁺ ¹ = 17 - 3

10⁴ˣ ⁺ ¹ = 14

x = log 14 - 1

          4

A large bin of mixed nuts contains peanuts, cashews, almonds, and walnuts. Sheila scoops out a bowl full of nuts and counts how many of each type she has: 17 peanuts, 9 cashews, 12 almonds, and 10 walnuts. Armando scoops out a bowl of 32 nuts. About how many should he expect to be cashews?









A.
5







B.
6







C.
9







D.
18

Answers

Assuming that the ratios stay the same, the answer is going to be 6 because the total number of nuts drawn originally was 48, and 9 were cashews. To maintain this ratio when 32 nuts were drawn, the number of cashews will be 6.

When cooked, 85% of the kernels in a bag of microwave popcorn popped. There were 120 kernels of popcorn in the bag.How many kernels popped?

Answers

the amount of kernels popped is 102
102 kernels were popped

The plates at the local restaurant have a diameter of 12.6 inches. What is the circumference of the plates?Use 3.14 for π.

Answers

124.6266 inches

The easiest way to work this out is use the formula


\pi r^(2)  to get r just divide the diameter by 2
this is really simple all you have to do is divide an you will get 124.6266
=D

Which of the following shows the correct evaluation for the exponential expression 6 over 7 to the power of 2? 6 over 7 plus 2 equals 2 and 6 over 7

6 over 7 times 2 equals 12 over 7 which equals 1 and 5 over 7

6 over 7 times 6 over 7 equals 36 over 49

6 over 7 divided by 2 equals 6 over 14

Answers

\left((6)/(7)\right)^2=(6)/(7)\cdot(6)/(7)=(36)/(49)

Answer:

It would be C

Step-by-step explanation:

Example 2^8

for the example you would do this 2*2*2*2*2*2*2*2 which would equal 256


Hope this helps
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Start at 125 and make a pattern subtracting 6