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Bess [88]
1 year ago
14

The width of a rectangle is 12 cm less than the length. the perimeter is 120 cm. Find the length and the width of the rectangle

Mathematics
1 answer:
drek231 [11]1 year ago
8 0

Answer: 48cm

Step-by-step explanation:

Using the formula

P=2(l+w)

Solving for l

l=P

2﹣w=120

2﹣12=48cm

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The temperature outside dropped 13°F in 7 hours. The final temperature was -2°F. What was the starting temper
belka [17]

Answer:

11 degrees Fahrenheit

Step-by-step explanation:

-2 + 13 = 11

4 0
2 years ago
Read 2 more answers
A car used 11 1/2 gal of gasoline on a 345-mile trip. How many miles can this car travel on 1 gal of gasoline? ____mi
lyudmila [28]

Answer:

The answer to your question is: 30 miles can the car travel.

Step-by-step explanation:

Data

gasoline used = 11 1/2 gal

distance = 345 mile-trip

distance travel with 1 gal = ?

Process

Convert 11 1/2 to a improper fraction    11 1/2 = 23/2

Rule of three

                            23/2 gal -----------------------  345 miles

                              1 gal      ----------------------   x

                          x = (1 x 345) / 23/2

                          x = 345 / 23/2

                          x = 690/ 23

                          x = 30 miles

8 0
3 years ago
Which is one reason why this expression is equal to 0. 8.29•-5.62+5.62/5.62
AnnZ [28]

Answer:

Step-by-step explanation:

-24699              

 —————— = -24.69900  

  1000              

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "•" was replaced by "*".

(2): "*-5" was replaced by "*(-5)".

(3): "5.62" was replaced by "(562/100)". 4 more similar replacement(s)

Step by step solution :

Step  1  :

           281

Simplify   ———

           50  

Equation at the end of step  1  :

   829      62  562   281

 ((———•-5)•———)+——— ÷ ———

   100     100  100   50  

Step  2  :

           281

Simplify   ———

           50  

Equation at the end of step  2  :

   829      62  281   281

 ((———•-5)•———)+——— ÷ ———

   100     100  50    50  

Step  3  :

        281      281

Divide  ———  by  ———

        50       50  

3.1    Dividing fractions

To divide fractions, write the divison as multiplication by the reciprocal of the divisor :

281     281       281      50

———  ÷  ———   =   ———  •  ———

50      50        50      281

Equation at the end of step  3  :

   829          62      

 ((——— • -5) • ———) +  1

   100         100      

Step  4  :

           31

Simplify   ——

           50

Equation at the end of step  4  :

   829         31      

 ((——— • -5) • ——) +  1

   100         50      

Step  5  :

           829

Simplify   ———

           100

Equation at the end of step  5  :

   829         31      

 ((——— • -5) • ——) +  1

   100         50      

Step  6  :

Rewriting the whole as an Equivalent Fraction :

6.1   Adding a whole to a fraction

Rewrite the whole as a fraction using  1000  as the denominator :

        1     1 • 1000

   1 =  —  =  ————————

        1       1000  

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

6.2       Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

-25699 + 1000     -24699

—————————————  =  ——————

    1000           1000  

Final result :

 -24699              

 —————— = -24.69900  

  1000              

Processing ends successfully

4 0
2 years ago
Need help asap!!! 48 points
Nady [450]

Answer:

b. i think

Step-by-step explanation:

7 0
2 years ago
What is the value of x in the equation 0.2(x + 1) + 0.5x = –0.3(x – 4)?
Leokris [45]
 0.2(x + 1) + 0.5x = -0.3(x - 4) 

0.2x+0.2+0.5x=-0.3x+1.2

 
 

0.7x+0.2=-0.3x+1.2 

0.7x=-0.3x+1.2-0.2 

0.7x=-0.3x+1 

0.7x+0.3x=1 

x=1
8 0
3 years ago
Read 2 more answers
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