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3 years ago

Marco drove 75 miles in hours. How many miles can he drive in 1 hour?

Mathematics

1 answer:

Nutka1998 [239]3 years ago

3 0

Answer:

Step-by-step explanation:

75m/hr

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Please help me with this. Method included please

Ilya [14]

Answer:

a) 9.135

b) 392.79

Step-by-step explanation:

Hope my answers are helpful

4 0

2 years ago

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A group of friends were working on a student film. They spent $949 on equipment, which was 73% of their total budget. What was t

wlad13 [49]

Answer:

$\huge\boxed{\sf x = \$ 1300}$

Step-by-step explanation:

Let the total budget be x.

Given condition:

73% of total budget = 949

73% of x = 949

Key:

of => to multiply

% => out of 100

Solution;

$\displaystyle \frac{73}{100} \times x = 949\\\\Multiply \ \frac{100}{73} \ to \ both\ sides\\\\x=949 \times \frac{100}{73} \\\\x = \frac{94900}{73} \\\\x = \$ 1300\\\\\rule[225]{225}{2}$

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2 years ago

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As a first step in solving the system shown, Yumiko multiplies both sides of the equation 2x – 3y = 12 by 6. By what factor shou

GenaCL600 [577]

Answer:

Yumiko should multiply the other equation by 3.

If she adds the two equations she would be left with the variable 'x'.

Step-by-step explanation:

Given the two equations are as follows:

$2x - 3y = 12 \hspace{5mm} \hdots (1)$

$5x + 6y = 18 \hspace{5mm} \hdots (2)$

It is given that she multiplies the first equation by 6. Therefore, (1) becomes

$12x - 18y = 72 \hspace{15mm} \hdots (a)$

Now, note that the sign of the variable 'y' is negative. So, if we make the co-effecient of 'y' equal in both the cases, add them it would result in the elimination of the variable 'y'.

The co-effecient of y in Equation (2) is 6. To make it 18 like it is in Equation (1), we multiply throughout by 3.

Therefore, Equation (2) becomes:

$15x + 18y = 54 \hspace{5mm} \hdots (b)$