All categories

3 years ago

Subtract 15 –k from -6k– 7.

Mathematics

1 answer:

NikAS [45]3 years ago

8 0

Answer:

$- 6k - 7 - (15 - k) \\ = - 6k - 7 - 15 + k \\ = - 5k - 22 \\ thank \: you$

You might be interested in

Help please, it’s due tomorrow!! :/

Dovator [93]

I’m in highschool and ion even know this.

8 0

3 years ago

Read 2 more answers

Find the precentage 87% of 55

kotegsom [21]

The answer is 47.85 because you're just multiplying the percentage to the given number, but first, convert the percentage into a decimal.

4 0

3 years ago

Read 2 more answers

The diagram shows a square ABCD with sides of length 20cm. it also shows a semi circle and an arc circle AB is the diameter of t

Brut [27]

Answer:

Area of Shaded Region $=50\pi$ cm^2$

Area of Semicircle $=50\pi$ cm^2$

$\dfrac{\text{Area of Shaded region}}{\text{Area of Square}}=\dfrac{ \pi}{8}$

Step-by-step explanation:

Area of Shaded Region = Area of Sector - Area of Semicircle

<u>Area of Sector</u>

Radius of the sector =20cm

$=\frac{90}{360}X\pi *20^2\\ =100\pi cm^2$

<u>Area of Semicircle</u>

Since AB is the diameter of the semicircle

Radius of the Semicircle=20/2=10cm

Area of semicircle

$=\frac{\pi r^2}{2}\\ =\frac{\pi *10^2}{2}\\=50\pi cm^2$

Therefore, area of Shaded Region

$=100\pi -50 \pi\\=50\pi$ cm^2$

Area of Square =20 X 20 $=400 cm^2$

$\dfrac{\text{Area of Shaded region}}{\text{Area of Square}} \\=\dfrac{50 \pi}{400} \\=\dfrac{ \pi}{8}$

4 0

3 years ago

Rory was with some friends outside an ice cream parlor. he noticed that one out of every four people bought a vanilla cone. he w

DochEvi [55]

Since the ratio is one out of four, you can throw out the first two (a and b). We then look to "c" and we find that the spinner represents the correct ratio, and since we are going to predict the next 5 people, that would be 5 spins (which eliminates d).

6 0

4 years ago

Read 2 more answers

Elizabeth uses 33.15 ounces of granola for 15 servings of trail mix.

attashe74 [19]

Answer:

Step-by-step explanation:

We have to do 33.15 / 15 to find how much is in each.

We change 33.15 into a fraction

We get 33 3/20

We do 33 3/20 / 15 = 33 3/20 * 1/15 = 663/20 * 1/15 = 663/300 = 2 63/300

Therefore, 2 63/300 ounces of granola is in a serving.

3 0

2 years ago