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otez555 [7]
3 years ago
10

Help me please with this question

Mathematics
1 answer:
lukranit [14]3 years ago
3 0

Answer:

see explanation

Step-by-step explanation:

2B + 3C

= 2 \left[\begin{array}{ccc}4&-5\\-2&1\\\end{array}\right] + 3 \left[\begin{array}{ccc}1&-1\\-6&3\\\end{array}\right]

Multiply each element in the matrices by the scalar quantity, that is

= \left[\begin{array}{ccc}8&-10\\-4&2\\\end{array}\right] + \left[\begin{array}{ccc}3&-3\\-18&9\\\end{array}\right]

Add corresponding elements from each matrix

= \left[\begin{array}{ccc}8+3&-10-3\\-4-18&2+9\\\end{array}\right]

= \left[\begin{array}{ccc}11&-13\\-22&11\\\end{array}\right]

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the cost of 5 cans of dog food is $4.35. at this price how much do 11 cans of dog food cost explain your reasoning. ASAP
mestny [16]

Answer:

Cost of 11 cans of Dog food is $9.57

Step-by-step explanation:

Cost of 5 cans of dog food = $4.35

So to find out the cost of 11 cans of dog food at the same price, we need to calculate the price of 1 can of dog food.

<u>Calculation for finding out cost of 1 can of dog food</u>

The price $4.35 which is given is the price of 5 cans

So to find the cost of 1 can, we need to divide the given price by 5

5 Cans of dog food = $4.35

1 can of dog food = 4.35 ÷ 5

1 can of dog food = $0.87


<em><u>Now to find out the price of 11 cans, we will multiply the price of 1 can with 11</u></em>

Cost of 11 cans = 11 × $0.87

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6 0
2 years ago
49 percent of all people who buy running shoes don't run at all Assuming 340,000 people but running shoes how many will use them
Goryan [66]
173, 400

49% of people do not run; thus, 51 percent of people do.

51% * 340,000 = 173, 400
8 0
3 years ago
Read 2 more answers
ill decides to move her fish from a 20 gallon aquarium to a 50 gallon aquarium. She added 3 tablespoons of salt to her old aquar
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(50\,\rm{gal})\left(0.15\,\dfrac{\rm tbsp}{\rm gal}\right)=7.5\,\rm{tbsp}

to maintain the salinity.

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at an amusement park there are 5150 moon shoes and 3041 cactus plants there are a total of 10881 prizes how many hats are at the
Mariana [72]
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