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3 years ago

Please help i’m having a hard time answering it

Mathematics

1 answer:

pshichka [43]3 years ago

8 0

So we know 5ft to 1cm then
4x5=20ft
6x5=30ft

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The function q(w) = 3+5(w-1) represents the number of quarters in a bowl on week w. What does the value 5 represent in the situa

Zepler [3.9K]

The value of quarters in the bowl on week 1 was &5

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2 years ago

Write the number 21, 473, 862, 095 in word form.

ipn [44]

Answer:

C. twenty one billion, four hundred seventy three million, eight hundred sixty two thousand, and ninety five

Step-by-step explanation:

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2 years ago

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Simplify 17/20-1/5 explain your answer

Llana [10]

Answer:

13/20

Step-by-step explanation:

Find a same denominator.

17/20 - 1/5 = 17/20 - 4/20

= 13/20

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2 years ago

There are 36 students in mrs.Keaton's sixth grade class. If 5/12 of her students are girls, how many girls are in the class?

olga_2 [115]

There are 15 girls in the class.

7 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

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2 years ago