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3 years ago

Need help with 8 grade math please

Mathematics

1 answer:

Illusion [34]3 years ago

6 0

Answer:

Step-by-step explanation:there is 41 people who own pets in total, and 19 people that don't have a pet in total

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PLEASE HELP ASAP! need answer now!

BARSIC [14]

Answer:

i have the same question

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

A recipe that serves two people calls for 1,600 milligrams of baking soda. You want to make enough for 10 people. How much bakin

Marta_Voda [28]

10/2=5
5 x 1600 = 8000 milligrams
= 8 grams

8 0

3 years ago

Read 2 more answers

Which complex number has a distance of √17 from the origin on the complex plane?

guapka [62]

Let the complex number be x + iy

Then by the pythagoras therem

17 = x^2 + y^2

D will satisfy this equation

4^2 + (-1)^2 = 17

answer is D 4 - i

6 0

3 years ago

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Cory, Josh and Dan went shopping for Halloween treats. Cory bought 3 chocolate pumpkins, 4 masks and 8 candy witches. He spent $

bija089 [108]

Answer:

The cost of chocolate pumpkins is $1.89, masks cost $5.75 and candy witches cost $1.62

Step-by-step explanation:

Let x represent the cost of chocolate pumpkins, y the cost of masks and z the cost of candy witches.

Cory shopping can be represented as:

3x + 4y + 8z = 41.63 (1)

Josh shopping can be represented as:

6x + 2y + 14z = 45.52 (2)

Dan shopping can be represented as:

8x + 3y + 25z = 72.87 (3)

The equations in matrix form is:

$\left[\begin{array}{ccc}3&4&8\\6&2&14\\8&3&25\end{array}\right] \left[\begin{array}{c}x\\y\\z\end{array}\right] =\left[\begin{array}{c}41.63\\45.52\\72.87\end{array}\right] \\\\\\\left[\begin{array}{c}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}3&4&8\\6&2&14\\8&3&25\end{array}\right] ^{-1}\left[\begin{array}{c}41.63\\45.52\\72.87\end{array}\right] \\\\\\\left[\begin{array}{c}x\\y\\z\end{array}\right] =\left[\begin{array}{c}1.89\\5.75\\1.62\end{array}\right]$

The cost of chocolate pumpkins is $1.89, masks cost $5.75 and candy witches cost $1.62

7 0

3 years ago

Simplify the equation <br><br> 4(-8x + 5) - (-33x - 26)= ???

kkurt [141]

$- 16 x+ 20 + 33x + 26 \\ 17x + 46$

4 0

3 years ago