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3 years ago

What is the solution of the system ?Use substitution. Y= -3x X + y = -4

Mathematics

1 answer:

DedPeter [7]3 years ago

4 0

I hope this helps you

x-3x= -4

-2x= -4

x=2

y= -3.2

y= -6

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Refer to the attachment and solve

Gekata [30.6K]

Answer:

$-8\frac{5}{8}$

Step-by-step explanation:

$\frac{-27}{4} +\frac{-15}{8}$

$\frac{-54}{8} +\frac{-15}{8}$

$\frac{-54-15}{8}$

$\frac{-69}{8}$

$-8\frac{5}{8}$

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3 years ago

Bill's recipe for onion soup call for 4.0lb of thinly sliced onions. If an onion has an average mass of 115g, how many onions do

musickatia [10]

Answer:

1. $16\ onions$

2. $4,040.91\ kg$

Step-by-step explanation:

1. You know that the average mass of an onion is 115 grams and Bill needs 4.0 pounds.

Then, since $1\ lb=453.592\ g$ , we can make the following conversion:

$(4.0\ lb)(\frac{453.592\ g}{1\ lb})=1,814.37\ g$

Then, the number of onions Bill needs is:

$(1,814.37\ g)(\frac{1\ onion}{115\ g})=15.77\ onions$ ≈ $16\ onions$

2. Since $1\ kg=2.20462\ lb$ , we can make the following conversion:

$(11\ lb)(\frac{1\ kg}{2.20462\ lb})=4.98\ kg$

Knowing that all the potatoes sold today at the store bring in $1,420 and 4.98 kilograms of potatoes is $1.75, we can calculate the amount of kilograms the grocery shoppers bought:

$(\$1,420)(\frac{4.98\ kg}{\$1.75})=4,040.91\ kg$

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3 years ago

Julius bought F boxes of 24 plastic forks. He already had 39 plastic forks. Now, he has 135 plastic forks. How many boxes of pla

mr_godi [17]

Answer:

Step-by-step explanation:

boxes are the f. the amount in each is 24. theses will be mulitplied. then you want to add what he already had. that's the +39

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3 years ago

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zheka24 [161]

A,G,B

IDK I think thats it

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3 years ago

What is the square root of 149? And please show me how to find the answer

chubhunter [2.5K]

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3 years ago