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ladessa [460]
4 years ago
15

What is the solution of this equation w+7=13

Mathematics
2 answers:
diamong [38]4 years ago
8 0

Answer:

6

Step-by-step explanation:

Leto [7]4 years ago
8 0

Answer:

w=6

Step-by-step explanation:

(backwards method)

13-7=6

so

w=6

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Melanie buys 6 pounds of beef and 3 pounds of bacon. She pays a total of $63,
kupik [55]

Answer:

Cost of 1 beef= $7.5

Cost of 1 bacon= $6

Step-by-step explanation:

Ok so first of organize everything:

We know she buys 6 pounds ->beef and 3 pounds ->bacon

First we need to set up an equation of how much 1 beef costs and 1 bacon costs:

Let’s say f=cost of 1 beef and b=cost of 1 bacon

Now lets make the equation:

6f+3b=63. (She buys 6 portions of beef and 3 bacon and her total comes out to 63)

Now their is another condition that the cost of one bacon is -$1.50 per pound than beef.

So we can say b=f-1.50

Do you notice anything similar? The b has a value now and so we can replace the b in our first equation with the b of the 2nd (b=b)

So hence,

6f+3(f-1.50)=63

6f+3f-4.5=63

9f=67.5

F=7.5 (This is the cost for 1 pound of beef)

Now lets find out for bacon,. Now instead of doing this equation all over again just insert it into the b=f-1.5 you know make life easier for yourself:

B=7.5-1.5

B=6

Cost of 1 beef= $7.5

Cost of 1 bacon= $6

4 0
3 years ago
Can someone help with this math problem? (first image) <br> The second image is an example.
Fantom [35]

Answer:

17x^2+5x-1

Step-by-step explanation:

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7 0
3 years ago
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Se mezclan alcohol 54% con alcohol de 90 y agua en la proporcion de 6,6 y "n" .hallar "n" sabien que mezclam es del mismo grado
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Is there a way you can do this in English like write it in English?
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3 years ago
angie,blake,carlos and daisy went running angie ran 1/3 blake ran 3/5 carlos ran 7/10 and daisy ran 1/2 which runner ran short d
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Angie- .33
Blake- .6
Carlos- .7
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4 years ago
Bernard a part of a small pizza he started with 11/12 of a pizza but only ate 2/3 of it which is the best estimate of the amount
sleet_krkn [62]

Answer:

Bernard ate a little less than Two-thirds of the pizza.

Step-by-step explanation:

i took the test

7 0
4 years ago
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