Ming wrote the table of points below.

Mathematics

1 answer:

borishaifa [10]3 years ago

6 0

Answer:

I am 99.99% sure it is the first one

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I don’t understand this.

alexira [117]

I’ll solve number 3.

You need to group the like terms. For example, -4n + 6n = 2n

8=2n

Now, we need to keep n by itself.
2n/2 = n

Whatever you do to one side, you need to do to the other.

8/2 = 4

So, in conclusion, n = 4.

I hope this helps for you to solve the rest!

8 0

3 years ago

3. Four chicken nuggets have 180 calories. How many calories are in 9 chicken

Lemur [1.5K]

Hey there! :)

Answer:

405 calories.

Step-by-step explanation:

To solve, we can create a proportion.

We are given that 4 nuggets is equivalent to 180 calories, therefore:

$\frac{180cal}{4}= \frac{xcal}{9}$

Cross multiply:

9 · 180 = 4 · x

1620 = 4x

Divide both sides by 4:

x = 405 calories.

8 0

3 years ago

Read 2 more answers

Y-3=2(x+1)<br> Missing values?

klio [65]

The missing value for y is 3
Step-by-step explanation:
y−3=2(x+1)
We know that x=-1 and we want to solve for y
Put in x=-1
y-3 = 2(-1+1)
y-3 = 2(0)
y-3=0
Add 3 to each side
y-3+3 = 0+3
y =3

3 0

3 years ago

A research firm conducted a survey of 49 randomly selected Americans to determine the mean amount spent on coffee during a week.

Andre45 [30]

Answer:

(21.4, 18.6)

Step-by-step explanation:

Given that:

Mean (μ) = $20 per week

Standard deviation (σ) = $5

number of sample (n) = 49

Confidence level = 95% = 0.95