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natita [175]
3 years ago
8

In the following proportion, what does z equal? 3/7 = 15/z

Mathematics
2 answers:
lions [1.4K]3 years ago
8 0

Answer:

yes Z= 35

Step-by-step explanation:

3  = 15

7   =  z

Cross multiply:

3 * z = 7 * 15

Simplifying

3 * z = 7 * 15

Multiply 7 * 15

3z = 105

Solving

3z = 105

Solving for variable 'z'.

Move all terms containing z to the left, all other terms to the right.

Divide each side by '3'.

z = 35

Simplifying

z = 35

NARA [144]3 years ago
7 0

3/7 = 15/z

using cross products

3z = 7*15

3z = 105

divide by 3

z = 35

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gavmur [86]

Answer:

68

Step-by-step explanation:

Draw a line from(-4,3) to (4,3).

a square and triangle is shown.

find the area of the square and the triangle

FORMULA

<em>square-length*width</em>

<em>7*8=56</em>

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6 0
3 years ago
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R560 invested at 8% p.a. simple interest for 3 years​
alexdok [17]

Answer:

R 694.4

Explanation:

simple interest = \sf{\dfrac{PRT}{100} → \sf \dfrac{560*8*3}{100} → R 134.4

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invested money + simple interest

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4 0
2 years ago
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Mercedes has a spool containing 15 2/3 inches of ribbon she cut a length of 6 1/2 inch to tie a bow how much ribbon is left on t
Blizzard [7]

Answer: The answer is...

9 1/6

Step-by-step explanation:

Subtract the fractions by first finding a common denominator. Then, write equivalent fractions, subtract the whole numbers and the numerators. Write the answer in simplest form.

15 2/3- 6 1/2

15 4/6 - 6 3/6= 9 1/6

Mercedes has 9  1 /6  inches  of ribbon left.

<em><u>I hope yo have a productive day</u></em>

6 0
3 years ago
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What is the solution?<br> 45-[5+8y-3(y+3)]= -3(3y-5)-[5(y-1)-2y+6
monitta

Answer:

-5

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

45−(5+8y−3(y+3))=−3(3y−5)−(5(y−1)−2y+6)

45+−1(5+8y−3(y+3))=−3(3y−5)+−1(5(y−1)−2y+6)(Distribute the Negative Sign)

45+(−1)(5)+−1(8y)+−1(−3(y+3))=−3(3y−5)+−1(5(y−1))+−1(−2y)+(−1)(6)

45+−5+−8y+3y+9=−3(3y−5)+−5y+5+2y+−6

45+−5+−8y+3y+9=(−3)(3y)+(−3)(−5)+−5y+5+2y+−6(Distribute)

45+−5+−8y+3y+9=−9y+15+−5y+5+2y+−6

(−8y+3y)+(45+−5+9)=(−9y+−5y+2y)+(15+5+−6)(Combine Like Terms)

−5y+49=−12y+14

−5y+49=−12y+14

Step 2: Add 12y to both sides.

−5y+49+12y=−12y+14+12y

7y+49=14

Step 3: Subtract 49 from both sides.

7y+49−49=14−49

7y=−35

Step 4: Divide both sides by 7.

7y

7

=

−35

7

y=−5

8 0
3 years ago
the circumference of a circle is 11pi inches. what is the area, in square inches, of the circle? express in terms of pi.
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8 0
3 years ago
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