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3 years ago

10

HELPPP!!! Due in 45 minutes

2 answers:

MAVERICK [17]3 years ago

8 0

Answer:

A: 55-75 microns.

B: 3.4-3.6 feet

Step-by-step explanation:

storchak [24]3 years ago

4 0

Answer: a: 55 microns- 75 microns

b: 3.4 feet- 3.6 feet

Step-by-step explanation:

For letter a you have an accuracy up to 10 microns so add and subtract from the original number; the same applies to letter b just turn the percentage to a decimal then add and subtract. Hope that helps!

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The answer for that equation will be 0.375.

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3 years ago

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One month kris rented 3 movies and 8 video games for a total of $53. the next month she rented 5 movies and 2 video games for a

SCORPION-xisa [38]

Make a system of equations and solve for each variable.

3m+8v=53
5m+2v=26

m= movie cost
v= game cost

multiply the bottom equation by 4(combination method)

3m+8v=53
20m+8v=104. Subtract

-17m = -51
m= 3

Plug back into one of the equations

5(3)+2v=26
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3 years ago

A rectangular yoga mat has a perimeter of 179 inches. The width of the mat is eight less than half the length. Find the width, i

lianna [129]

Answer:

The width is $24.5in$

Step-by-step explanation:

The perimeter of the rectangular yoga mat can be found using the formula;

$P=2l+2w$ .

$\Rightarrow 179=2l+2w...(1)$ .

It was given that the width of the mat is eight less than half the length.

$w=\frac{1}{2}l-8...(2)$

We put equation (2) into equation (1) to get;

$179=2l+2(\frac{1}{2}l-8)$ .

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$\Rightarrow 179+16=2l+l$ .

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Divide both sides by 3;

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3 years ago

A department store sells yellow and purple shirts. Each yellow shirt is the same price. Each purple shirt is the same price. How

Aleksandr [31]

Answer:

The Cost of yellow shirts is $15 and the cost of purple shirt is $ 60

Step-by-step explanation:

Let cost of one yellow shirt be x

and the cost of one purple shirt be y

On Monday

5x + 7y = 165--------------------(1)

On Tuesday

4x + 11y = 213----------------------(2)

To solve (1) and (2)

multiplying eq(1) with 4

20x + 28y = 660--------------------(3)

multiplying eq(2) with 5

20x + 55y = 1056-------------------(4)

Subtracting (3) from (4)

20x + 55y = 1056

20x + 28y = 660

(-)

-----------------------------------

0x +27y = 405

-----------------------------------

$y = \frac{405}{27}$

y = 15

Substituting y value in eq(1)

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5x =405 -105

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x = \frac{300}{5}

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3 years ago

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Answer:

Hey there!

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30% of water evaporated.

Hope this helps :)

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