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Ainat [17]
3 years ago
12

Which equation does this story match: The temperature is -7. Since midnight the temperature tripled and then rose 5 degrees. Wha

t was the temperature at midnight?
5x - 7=3

7=3(5+ x)

3x + 5 = -7

13 (x+ 7) = 5
Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
4 0
5x-7=3 :))))))))))))))))))))))
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Solve the literal equation cy−7=5d+3ycy−7=5d+3y for yy.
puteri [66]

We are given the equation:

cy – 7 = 5d

And we are asked to find for y.

First step, add 7 on both sides:

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Next step, divide both sides by c:

cy / c = (5d + 7) / c

<span>y = (5d + 7) / c</span>

4 0
3 years ago
It takes 250 g of pasta and 240 ml of sauce to make one batch of spaghetti, and it takes 600g of pasta and 700ml of sauce to mak
klemol [59]

It takes 250 g of pasta and 240 ml of sauce to make one batch of spaghetti and it takes 600g of pasta and 700ml of sauce to make one batch of lasagna.

Case 1: Pasta

The chef wants to make spaghetti and lasagna using more than 4000 g of pasta.

S denote the number of batches of spaghetti he makes and L the number of batches of lasagna he makes.

So the equation becomes :

250S +600L > 4000

Case 2: Sauce

chef wants to make spaghetti and lasagna using more than 5000 ml of sauce.

S denote the number of batches of spaghetti he makes and L the number of batches of lasagna he makes.

So the equation becomes:

240S +700L > 5000

Answer :

The two equations are :

For pasta: 250S +600L > 4000

For sauce: 240S +700L > 5000

6 0
4 years ago
Read 2 more answers
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