Ask question

Ask question

All categories

4 years ago

12

-60 = -15k Solve the equation.

1 answer:

Morgarella [4.7K]4 years ago

4 0

Answer:

k=4

Step-by-step explanation:

-60 = -15k

-60÷-15= -15k÷-15

-60÷-15=k

-60÷-15=4

k=4

-60=-15k

-60= -15(4)

You might be interested in

the sum of the first 20 terms of an A.P is identical to the sum of the first 22 term.If the common difference is -2; find the fi

Goryan [66]

Answer:

First term a = 41

Step-by-step explanation:

Arithmetic Progression:

Common differences d = -2

$S_{n}=\frac{n}{2}(2a+[n-1]d)\\\\S_{20}=\frac{20}{2}(2a+19*[-2])\\\\$

= 10*(2a - 38)

= 10*2a - 10*38

=20a - 380

$S_{22}=\frac{22}{2}(2a+21*[-2])\\\\$

= 11 (2a -42)

=11*2a - 11*42

= 22a - 462

$S_{22}=S_{20}\\\\$

22a - 462 = 20a - 380

22a = 20a - 380 + 462

22a = 20a + 82

22a - 20a = 82

2a = 82

a = 82/2

a = 41

First term a = 41

7 0

3 years ago

Find the missing coefficent. (5d - 7)(5d - 6) = 25d2 + d + 42

Tcecarenko [31]

25d^2-30d-35d+42=25d^2-65d+42.

5 0

3 years ago

Read 2 more answers

Jasmine knows that the area of a rectangle is the product of its base and height. Help her write an expression that represents t

Andrews [41]

Answer:

8b and 80

Step-by-step explanation:

6 0

4 years ago

Write an equation to represent the following statement.

Anastaziya [24]

Answer:

k = 3/7

Step-by-step explanation:

121212kkk = 848484

divide each side by 121212

kkk = 7

3k = 7

k = 3/7

3 0

2 years ago

If a plane <br> files 5,000 km, how many meters would this be

ra1l [238]

Answer:

5

Step-by-step explanation:

Km to m=1000 so 5000÷1000=5

6 0

3 years ago

Read 2 more answers