3 years ago

Solve for k: -2k = k - 7 - 8 and explain in number form

Mathematics

1 answer:

Kamila [148]3 years ago

7 0

Answer:

k = 5

Step-by-step explanation:

-2k = k - 7 - 8

Combine like terms

-2k = k - 15

add 15 to both sides

-2k + 15 = k

Add 2k to both sides

15 = 3k

Divide both sides by 3

k=5

Hope this helps!

You might be interested in

Emily is training for a 10K race. On day one, she runs for 20 minutes. On day two, she runs for 30 minutes. On day three, she ru

9966 [12]

It should be 130 as from day one to day two and to day three it goes up by 10 so 12*10+10

5 0

2 years ago

А. 3х – 1 = 7<br> В.<br> 3x = 8

weeeeeb [17]

Hi! what’s the question? i believe you only put two answers

5 0

3 years ago

A man bought a pair of jeans for $23.00 a shirt for $14.00 and two ties for $7.98 each. What was the total cost of his clothing

Anna35 [415]

Answer:

$52.96

Step-by-step explanation:

To find the total cost of his clothing, add up the prices of everything he bought.

Jeans: $23.00

Shirt: $14

Ties: 2 ties for $7.98 each.

Each tie costs $7.98, and the man bought two ties. Therefore, multiply 2 and $7.98

2*$7.98 = $15.96

Add all the prices together.

jeans + shirt + ties

$23 + $14 + $15.96

$37 + $15.96

$52.96

The total cost of his clothing is $52.96

4 0

2 years ago

Read 2 more answers

(7^4)(7^2) = A) 7^6 B) 7^8 C) 14^6 D) 14^8

jonny [76]

Answer:

Step-by-step explanation:

using the rule of exponents

• $a^{m}$ × $a^{n}$ ⇔ $a^{(m+n)}$ , hence

$7^{4}$ × 7² = $7^{(4+2)}$ = $7^{6}$

4 0

2 years ago

Decide whether the triangles are similar. If so, determine the appropriate expression to solve for x.

nikdorinn [45]

Explanation: The given triangles are similar by Angle-Angle postulate, because all three pairs of corresponding angles are congruent.

6 0

2 years ago

Read 2 more answers