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2 years ago

(7/8 - 5/2) + 10/2 x 1/4

Mathematics

2 answers:

Simora [160]2 years ago

5 0

Answer:

- $\frac{3}{8}$

____________

Also, I see that this is your first question on here. Welcome to Brainly, midiostepague347!

Step-by-step explanation:

Allisa [31]2 years ago

4 0

Answer:

-3/8

Step-by-step explanation:

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What is the relation between the trigonometric ratios tan(R) and tan(J)? Please answer ASAP!

Ilya [14]

Step-by-step explanation:

∆PQR similar to ∆ JKL

JK/KL= PQ/QR

6/12=3/QR

QR=3×2= 6

therefore, tan(R) = PQ/QR = 3/6=1/2

and, tan(J) = KL/JK =12/6=2

$\frac{ \tan(R) }{ \tan(J) } = \frac{ \frac{1}{2} }{2}$

$\frac{ \tan(R) }{ \tan(J) } = \frac{1}{4}$

tan(J)=4.tan(R)

option D

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3 years ago

What is the 7th geometric sequence in 2,6,18,54?

allsm [11]

Okay so for each one it gets multiplied by three. We have four terms so we need to find three more. 54·3=162 162·3=486 486·3=1458 2,6,18,54,162,486,1458 1458 is your answer I hope this helps you

5 0

3 years ago

Please help with this easy fraction problem <3

Eddi Din [679]

18 + 7/9

14 + 7/8

First, rewrite each fraction in terms of a common denominator. 8 and 9 don't share a common multiple until 8 * 9 = 72, so we have

7/9 = (7/9) • (8/8) = (7 • 8)/(9 • 8) = 56/72

7/8 = (7/8) • (9/9) = (7 • 9)/(8 • 9) = 63/72

Next, write each whole number in terms of fractions with the same denominator. We have

18 • 72 = 1296 ==> 18 = 1296/72

14 • 72 = 1008 ==> 14 = 1008/72

Write each mixed number as an improper fraction:

18 + 7/9 = 1296/72 + 56/72 = (1296 + 56)/72 = 1352/72

14 + 7/8 = 1008/72 + 63/72 = (1008 + 63)/72 = 1071/72

If the backpack and book together weigh 18 + 7/9 pounds, and the backpack without the book weighs 14 + 7/8 pounds, then the book alone weighs the difference, call it b :

b = (18 + 7/9) - (14 + 7/8)

b = 1352/72 - 1071/72

b = (1352 - 1071)/72

b = 281/72

Convert this to a mixed number. 72 • 4 = 288, so 72 • 4 - 7 = 281:

b = (72 • 4 - 7)/72

b = (72 • 4)/72 - 7/72

b = 4 - 7/72

b = (3 + 1) - 7/72

b = 3 + (1 - 7/72)

b = 3 + 65/72

4 0

3 years ago

The president of a certain university receives a salary that is four times the salary of one of the department heads. The total

Viktor [21]

a. The salary of the department head is $105,000.

b. The salary of president is $420,000.

Step-by-step explanation:

Let,

x be the salary of president.

y be the salary of head of department.

According to given statement;

x=4y

a) What is the salary of the department head?

Salaries of two heads of department = $210000

$2y=210000$

Dividing both sides by 2;

$\frac{2y}{2}=\frac{210000}{2}\\y=105000$

The salary of the department head is $105,000.

b) What is the salary of the president of the university?

x=4y

$x=4(105000)\\x=420000$

The salary of president is $420,000.

Keywords: Division, multiplication

Learn more about multiplication at:

#LearnwithBrainly

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4 years ago

convert 50° Fahrenheit to celsius using the following formula. round your answers to the nearest degree. 5\9 (f°-32) =c°

weqwewe [10]

First you do 50 - 32 an that equals 13, so your answer is 13

8 0

4 years ago