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andreyandreev [35.5K]
3 years ago
15

2

Mathematics
1 answer:
bazaltina [42]3 years ago
3 0

Answer:

7.5 hours

Step-by-step explanation:

y=mx+b, where y is cost and x is hours.

175 = 20x + 25

150 = 20x

7.5 = x

He worked 7.5 hours

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A 16 ounce box of cereal cost $3.04 , what is the unit cost ?
Black_prince [1.1K]

Answer:

$.19 per ounce

Step-by-step explanation:

Take the price and divide by the number of ounces

3.04 dollars/ 16 ounces

.19 dollars per ounce

5 0
3 years ago
Read 2 more answers
Solve this linear system 28x + 44y = 964.40 21x + 33y = 723.30
Sladkaya [172]

28x + 44y = 964.40

21x + 33y = 723.30

Let's multiply the first equation by 4 and the second by -4

84x + 176y = 3857.6

-84x - 132y = -2893.2

Add the equations together.

0 + 44y = 964.4

Simplify

44y = 964.4

Divide both sides by 44

y = 964.4/44

Since we have the value of y, let's plug 964.4/44 into y for the first equation.

28x + 44(964.4/44) = 964.40

Simplify the left side

28x + 964.4 = 964.4

Subtract 964.4 from both sides

28x = 0

Divide both sides by 0

x = 0

In conclusion,

y = 964.4/44

x = 0

3 0
4 years ago
Help me please. What is (2a+8) + (4a +5)
Rom4ik [11]

Answer:

6a + 13

Step-by-step explanation:

2a + 4a = 6a

8 + 5 = 13

6a + 13

8 0
2 years ago
Read 2 more answers
3.. please help!!!!!!!!!!!
mario62 [17]

Answer: lalala

Step-by-step explanation:

7 0
3 years ago
Is this right? if it isn't, what IS right?
umka2103 [35]

Answer:

You are wrong and the correct answer is vaunted.

Step-by-step explanation:

Why? Because it would be the only applicable word for this sentence.

Omnipotent: Having unlimited power; able to do anything.

Overt: One or shown openly; plainly or readily apparent, not secret or hidden.

Annihilated: Destroy utterly; obliterate.

Vaunted: Praised or boasted about, especially in an excessive way.

6 0
3 years ago
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