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4 years ago

Convert 86 degrees Fahrenheit to degrees celsius

Mathematics

2 answers:

Lesechka [4]4 years ago

8 0

C=(F-32)*5/9
=(86-32)*5/9
=54*5/9
=6*5
=30

dybincka [34]4 years ago

3 0

86 degrees Fahrenheit is 30 degrees Celsius

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Drag a statement or reason to each box to complete this proof.

Pepsi [2]

In the given quadrilateral ABCD,

$m\angle A=7x^{\circ} , m\angle B=5x^{\circ}, m\angle C=7x^{\circ} , m\angle D=5x^{\circ} (Given)$

$m\angle A + m\angle B+ m\angle C+ m\angle D=360^{\circ}$

(Sum of interior angles of a quadrilateral is 360 degrees)

$7x\dot{^{\circ}} + 5x^{\circ}+ 7x\dot{^{\circ}} + 5x^{\circ}=360^{\circ}$ (Substitution Property)

$24x^{\circ}=360\dot{^{\circ}}$ (Addition Property of Equality)

$x=15^{\circ}$

7 0

3 years ago

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3 times the sum of b and f can also be written as

Troyanec [42]

3 times the sum of b and f can also be written as $3(b+f)$

6 0

3 years ago

The ratio of boys to girls in the 10th grade is 8 to 13. If there are 91 girls in 10th grade, then how many boys are there?

IRINA_888 [86]

Answer: There are 56 boys in the 10th grade

Step-by-step explanation:

Step 1

ratio of boys to girls in the 10th grade is 8 :13

Number of girls= 91

To find the number of boys, we first find the total number of boys and girls in the 10th grade

Step 2

Now the total ratio= 8 +13=21

Number of girls = ratio of girls/ total ratio x Total number of students

91=13/ 21 x Total number of students

Total number of students =21 x 91 / 13 =147

Step 3

Therefore Number of boys =ratio of boys/ total ratio x Total number of student

8/21 x 147=56

6 0

3 years ago

How would u resolve (-16/21) x (15/24) =

mr Goodwill [35]

Answer:

-.5714285714

Step-by-step explanation:

7 0

3 years ago

Beth is flying a kite with 300 feet of string. The kite gets stuck in a tree, so she ties the other end of the string to a rock

Paraphin [41]

Answer:

$\displaystyle 172.1 ft$

Step-by-step explanation:

refer the attachment

let the string be hypotenuse and

the height be h And the angle be 35°

given that,

hypotenuse:300ft
angle:35°

since we are given the hypotenuse and want to figure out the opposite side we'll use sin function

so our equation would be

$\displaystyle \sin( {35}^{ \circ} ) = \frac{h}{300}$

cross multiplication:

$\displaystyle h= 300 \sin( {35}^{ \circ} )$

by using calculator we obtain:

$\displaystyle h = 172.1$

hence,

about 172.1ft far up the tree is the kite

7 0

3 years ago

Read 2 more answers