1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
rjkz [21]
2 years ago
14

Its -20 but how? pls helppp. ill give brainliest

Mathematics
2 answers:
MissTica2 years ago
4 0

w-10=2(w+5)

w-10=2w+10

w-2w=10+10

-w=20

w=-20

Andrews [41]2 years ago
4 0

Answer:

it's -20

Step-by-step explanation:

-20 - 10 = -30 because of the negative signs

2(-20+5) = 2(-15) it's -15 as - and + = - and 20-5 is 15 ww then put the negative as -20 is the bigger number so ww have to put the sign of it, that will then be -15

at this point it's -30 = 2(-15)

2 x -15 is -30

-30 = -30

You might be interested in
Round to the nearest 10th "15 is what percent of 48"
Sever21 [200]

Answer:

x=31.25%

Step-by-step explanation:

set up a proportion as 15/48=x/100 and solve.

5 0
3 years ago
Read 2 more answers
5 1/5 - 3 4/7 =<br> A. 2 3/4<br> B. -2 3/4 <br> C. 1 16/21<br> D. -1 16/21
matrenka [14]
116/21 hope this helped !
4 0
3 years ago
You are planning to put a new digital flat t.v on a wall that is 12ft long and 9ft high. the digital t.v has a diagonal of 72 in
Pie
Area of wall = 9 * 12 = 108 ft^2
Width of TV = x
Lenght = 2x
Diagonal of TV = 72 " = 6 ft


x^2+(2x)^2=6^2
x^2+4x^2=36
5x^2=35
x^2=36/5
x=sqrt(36/5)
Width = 2.68 ft.
Length = 2.68 * 5.36 = 14.36 ft^2
Area of wall - area of tv = 108 - 14.36 = 93.64 ft

7 0
2 years ago
Please help meeee!! :(
kirill115 [55]
The function for x=3 is 1
5 0
3 years ago
In a sample of 57 temperature readings taken from the freezer of a restaurant, the mean is 29.6 degrees and the population stand
Natalka [10]

Answer:

(29.14 ; 30.06)

Step-by-step explanation:

Given that'

Sample size (n) = 57

Mean (m) = 29.6

Population standard deviation (σ) = 2.7

Confidence interval = 80%

= (1 - 0.8) / 2 = 0.1

Mean ± z * σ/√n

Using the Z probability calculator : Z0. 1 = 1.28

Hence,

29.6 ± 1.28 * (2.7 / √57)

29.6 - (1.28 * 0.3576237) ; 29.6 + (1.28 * 0.3576237)

29.142241664 ; 30.057758336

(29.14 ; 30.06)

8 0
3 years ago
Other questions:
  • the three inside angles (A, B and C) of the right-angled triangle are in the ratio 7 to 18 to 11 the smallest angle is 35° burge
    10·1 answer
  • I need the answer for this question
    13·1 answer
  • •
    15·1 answer
  • EASY 20 POINTS GUYS
    5·2 answers
  • What is 3 quarters of 300​
    7·1 answer
  • BRAINLIEST ANSWER TO FIRST ANSWERER!!
    6·1 answer
  • Can someone help me with this?
    10·2 answers
  • Please help me!!!!!!!!111
    13·1 answer
  • Together Cam and Brian had 24 pair of jeans. Cam had 4 less the Brian. Which inequality of equation could be used to find the nu
    12·1 answer
  • Please help!!!!!!!!!!!!!!!!!!!
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!