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3 years ago

Someone please finish and explain this! i'm giving brainliest, tysm :)

Mathematics

1 answer:

posledela3 years ago

6 0

Answer:

Step-by-step explanation:

Hours: 1 5 10 15 20 25

Minutes: 60 300 600 900 1,200 1,500

These show proportional relationship because they are all times hour by 60 minutes and the hours go by 5 hours, each.

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Solve x∕4 + y∕3 = 1 for x.

VladimirAG [237]

Answer:

D)x = 4∕3y – 4

Step-by-step explanation:

$\frac{x}{4} + \frac{y}{3} = 1$

$3x + 4y = 12$

$3x = 12 - 4y$

$x = 4 - \frac{4}{3} y$

7 0

2 years ago

81.08% of 37 hours<br> (Answer in minutes please)

Fofino [41]

It would be: 37 × 0.8108 = 30 hours (approx.)

Now, we know, 1 hour = 60 min.
so, 30 hours = 60 × 30 = 1800 min.

In short, Your Answer would be 1800 min

Hope this helps!

6 0

3 years ago

Read 2 more answers

All professional baseball teams playing field are the same size the three bases and home plate make a diamond that is 90 feet on

Leni [432]

It would be 90(4 sides)= 360 ft

or 90ft+90ft+90ft+90ft=360ft

4 0

3 years ago

If 3a-2b= 8 and a+3b=7 what is the value of 4a+b?

Fittoniya [83]

Step 1: Find the value of one variable in terms of the other.

$a+3b=7\\a=7-3b$

Step 2: Substitute the value you just found for this variable in the other equation.

$3a-2b=8\\3(7-3b)-2b=8\\21-9b-2b=8\\21-11b=8\\21=8+11b\\13=11b\\\frac{13}{11}=b\\ b=1\frac{2}{11}$

Step 3: Use your new value for the second variable to find the first.

$a+3b=7\\a+3(1\frac{2}{11})=7\\a+3\frac{6}{11}=7\\\\a=3\frac{5}{11}$

Now that we know the values for a and b we can find the value of 4a+b.

$4a+b\\4(3\frac{5}{11})+1\frac{2}{11}\\12+\frac{20}{11}+1\frac{2}{11}\\\\12+1\frac{9}{11}+1\frac{2}{11}\\\\\boxed{15}$

6 0

3 years ago

Mrs. Ramiriz is making pies to sell at the local farmer’s market. It costs her $5 to make each pie, plus a one-time cost of $30

grin007 [14]

To answer the problem above, we must first define the word break even. Break even means there is no gain or loss, the difference between the capital amount and the sale amount is zero. In equation, let x be the number of pies. 5x + 30 = 12x, $5 times the number of pies plus $30 is equal to $12 times the number of pies sold. The answer is letter C.

5 0

2 years ago

Read 2 more answers