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2 years ago

Solve: 9x+y=2 -4x-y=-17

Mathematics

1 answer:

beks73 [17]2 years ago

6 0

Answer:

−

Step-by-step explanation:

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Which expression is equivalent to 5(2+7)?

frosja888 [35]

Answer:

I can help you but first I need the rest of the answers to find out what's it equivalent to.

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3 years ago

Can 2 liters fit into 1/2 of a gallon?

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3 years ago

Read 2 more answers

Your subtotal at the store was $72.29. You have a 40% off coupon. If the sales tax rate is 9.5%, what is the total price for you

harkovskaia [24]

Answer:

31.93

Step-by-step explanation:

you prob just want the answer but here

1. Find 40% of 72.29 (29.16)

2. find 9.5% of 29.16 that would be $2.77

3. add $2.77 to 29.16

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3 years ago

Robert went to the grocery store and purchased cans of soup and frozen dinners. each can of soup has 300 mg of sodium and each f

Paraphin [41]

There are 9 cans of soup and 5 cans of frozen dinner.

The variables used for soup and frozen dinner are x and y respectively.

Step-by-step explanation:

Let,

Soup = x

Frozen Dinner = y

According to given statement of sodium;

300x + 500y = 5200 eqn 1

And,

x + y = 14 eqn 2

$Multiplying\ equation\ 2\ with\ 300\\300(x+y=14)\\300x+300y=4200\ Eqn 3\\$

Subtracting Eqn 3 from Eqn 1;

$(300x+500y)-(300x+300y)=5200-4200\\300x+500y-300x-300y=1000\\200y=1000\\y=\frac{1000}{200} \\y=5$

Putting value of y in Eqn 1;

$300x+500(5)=5200\\300x+2500=5200\\\\Subtracting\ 2500\ from\ both\ sides\ \\300x+2500-2500=5200-2500\\300x=2700\\x=\frac{2700}{300} \\x=9$

There are 9 cans of soup and 5 cans of frozen dinner.

The variables used for soup and frozen dinner are x and y respectively.

Keywords: Variables, linear equations, subtraction.

Learn more about linear equations at;

#LearnwithBrainly

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3 years ago

The map that has a width of 15 inches and a length of 21 inches is being enlarged by a scale factor of

maria [59]

15 times 2.2 equals 33 and 21 times 2.2 equals 46.2 you would then multiply 33 by 46.2 and you would get 1024.6

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3 years ago