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2 years ago

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If an assembler, on average, makes one error for every 125 products assembled, approximately how many errors can he be expected

to make after assembling 875 products?

2 answers:

Scorpion4ik [409]2 years ago

7 0

The answer would be 7.

Vikentia [17]2 years ago

4 0

1/125=x/875

125x = 875

x = 7

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Again helppp! asap!

igomit [66]

Answer:

C

Step-by-step explanation:

because 30÷6 is 5 and that is what should be placed

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2 years ago

1. These four lines have been graphed on the same coordinate grid. Which lines are parallel to each other?

Sedaia [141]

1. lines j and k because they have the same slope.
2.d because -1/3 is the opposite slope of 3 and it passes through that point.

5 0

2 years ago

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Sam can mow a lawn in 30 minutes. Rocky can mow the same lawn in 90 minutes. How long does it take for both Sam and Rocky to mow

Anvisha [2.4K]

Answer:

$\frac{45}{2} \ minutes$

Step-by-step explanation:

Given:

Sam can mow a lawn in 30 minutes.

Rocky can mow the same lawn in 90 minutes.

Question asked:

How long does it take for both Sam and Rocky to mow the lawn if they are working together?

Solution:

By unitary method:

<u>For Sam</u>

Sam can mow in 30 minutes = 1 lawn

Sam can mow in 1 minute = $\frac{1}{30}\ lawn$

<u>For Rocky</u>

Rocky can mow in 90 minutes = 1 lawn

Rocky can mow in 1 minutes = $\frac{1}{90} \ lawn$

In a case of working together:

In 1 minute, both will mow = $\frac{1}{30}\ lawn$ + $\frac{1}{90} \ lawn$

= $\frac{3+1}{90} = \frac{4}{90} \ lawn$

To mow $\frac{4}{90} \ lawn$ together, it takes = 1 minute

So, to mow 1 lawn together, it takes = $\frac{1}{\frac{4}{90} } =\frac{90}{4} =\frac{45}{2} \ minutes$

Thus, both Sam and Rocky will mow the lawn together in $\frac{45}{2} \ minutes$

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2 years ago

If xy=15 and x+y=5, find x^2+y^2

lora16 [44]

Answer:

- 5

Step-by-step explanation:

Note that

(x + y)² = x² + 2xy + y², thus

x² + y² = (x + y)² - 2xy ← substitute given values

= 5² - 2(15)

= 25 - 30

= - 5

8 0

2 years ago

The equation-4 - x = -13 has the solution

liq [111]

Answer:

x = 9

Step-by-step explanation:

Step 1: Write equation

-4 - x = -13

Step 2: Solve for <em>x</em>

<u>Add 4 to both sides:</u> -x = -9

<u>Divide both sides by -1:</u> x = 9

Step 3: Check

<em>Plug in x to verify if it's a solution.</em>

-4 - 9 = -13

-13 = -13

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2 years ago

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