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Natasha_Volkova [10]
2 years ago
13

PLS HELP!!!!!!!!!!!!!!!!!!!! Which number is divisible by both 5 and 6? A. 123,465 B. 132,640 C. 164,780 D. 184,290

Mathematics
1 answer:
umka21 [38]2 years ago
3 0

A,B helps it help if you doubt used calculator

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You get in an elevator and go down 8 floors. You exit on the 16th floor. Write and solve an equation to find what floor you got
disa [49]
So floor that you started is x
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end on 16

so
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3 years ago
Solving by factoring
puteri [66]

Answer:

3

Step-by-step explanation:

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Two mechanics worked on a car. The first mechanic worked for 20 hours, and the second mechanic worked for 15 hours. Together the
klasskru [66]

The rate charged per hour by each mechanic was:  x = 75 $ / hr and y = 115 $ / hr.

<h3>What is a system of equations?</h3>

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

Given;

The first mechanic worked for 20 hours, and the second mechanic worked for 15 hours.

Together they charged a total of $3225.

For this case we have the following variables:

x be the amount of $ / hr that the mechanic obtains 1.

y be the amount of $ / hr obtained by mechanic 2.

An equation to express this would be:

x + y = 190

20x + 15y = 3225

Solving the system of equations we have:

20x + 15(190 -x) = 3225

20x + 2850 - 15x = 3225

5x = 375

x = 75

simililary

y = 190 - x

y = 115

Hence, the rate charged per hour by each mechanic was:

x = 75 $ / hr

y = 115 $ / hr

Learn more about equations here;

brainly.com/question/10413253

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6 0
1 year ago
Can someone help me ? i have no clue how to figure this out
Ad libitum [116K]

\cos t (\sec t - \cos t) = \sin^2 t

\cos t (\dfrac{1}{\cos t} - \cos t) = \sin^2 t

\dfrac{\cos t}{\cos t} - \cos^2 t = \sin^2 t

1 - \cos^2 t = \sin^2 t

Use the identity: \sin^2 t + \cos^2 t = 1 and solve for \sin^2 t. You get: \sin^2 t = 1 - \cos^2 t

Do the substitution on the left side to get:

\sin^2 t = \sin ^2 t

5 0
2 years ago
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9x^2 - 4y - a <br> evaluate the expression given<br> x = -2, y = 3, a = -4
Tema [17]

Answer:

-44

Step-by-step explanation:

3 0
2 years ago
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