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almond37 [142]
3 years ago
11

The length of a rectangle is equal to triple the width. Which system of equations can be used to find the dimensions of the rect

angle if the perimeter is 86 centimeters
Mathematics
1 answer:
masha68 [24]3 years ago
5 0

Answer:

w=10.75 l=32.25

Step-by-step explanation:

So if we know that the length is 3 times as long as the width than if the width is x, length would be 3x.

3x+3x+x+x=86 There are two lengths and two widths

8x=86 Combine like terms

x=10.75 divide both sides by 8 and our width is 10.75

Length is 32.25 multiply 10.75 by 3

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Find the area of the shaded region. The graph depicts the standard normal distribution of bone density scores with mean 0 and st
SashulF [63]

Answer:

0.7233

Step-by-step explanation:

We want to find the area between the z-scores z=-0.95 and z=1.25.

We first find the area to the left of each z-score, and subtract the smaller area from the bigger one.

For the area to the left of z=-0.95, we read -0.9 under 5 from the standard normal distribution table.

This gives P(z<-0.95)=0.1711

Similarly the area to the left of z=1.25 is

P(z<1.25)=0.8944

Now the area between the two z-scores is

P(-0.25<z<1.25)=0.8944-0.1711=0.7233

7 0
3 years ago
2. A vine called the mile-a-minute weed is known for growing at a very fast rate. It can grow up to 0.5 ft per day. How fast in
gayaneshka [121]

Answer:

.25 inches per hour

Step-by-step explanation:

.5 ft

-----------

day

We need to get to inches

1 ft = 12 inches

.5 ft          12 inches      

----------- * ------------

day             1 ft  

We also need to convert days to minutes

1 day = 24 hours

.5 ft           12 inches             1 day          

----------- * ------------   * -------------    

day             1 ft       24 hours      

6 inches

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

24 hours

.25 inches per hour

8 0
3 years ago
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Vlad1618 [11]
Her straight-time pay was $288.44.
7 0
3 years ago
What is the missing justification?
Vikki [24]

Transitive property is your answer

if ∠A ≅ ∠C, and ∠C ≅ ∠B then, ∠A ≅ ∠B

hope this helps

4 0
3 years ago
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Which word problem could be represented by 3 x 2/3?<br> Question 4
IRINA_888 [86]

Answer:

I believe the correct answer is B.

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3 years ago
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