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
postnew [5]
3 years ago
10

18 minus 7 x = negative 20.5

Mathematics
1 answer:
alex41 [277]3 years ago
7 0

Answer:

x=5.5

Step-by-step explanation:

You might be interested in
Shannon went to an auto repair shop and paid $339.50, which included parts that cost $112 and 3.5 hours of labor. Joni went to a
QveST [7]

Answer:

im late but its d i hope

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Mary and roberto bought identical backpacks at different stores. marys backpacks originally cost $65 and was discounted 25%. rob
garri49 [273]
Mary's backpack: 25% of 65 = 0.25 * 65 = 16.25; 65 - 16.25 = $48.75
Roberto's backpack: 30% of 75 = 0.3 * 75 = 22.5; 75 - 22.5 = $52.5

Mary's backpack was a better buy because it was cheaper. 
6 0
3 years ago
The sum of the ages of Noi's and Noy's is 26 years. The different between four times Noi's age and two times Noy's age is 28 yea
nlexa [21]

Answer:

The age of Noi is 13.333 Years and the age of Noy is 12.67 years

Step-by-step explanation:

The given  information are;

The sum of the ages of Noi and Noy = 26 years

Four times Noi's age - Two times Noy's age = 28

Let the age of Noi = X and let the age of Noy = Y

We have;

X + Y = 26 years.................(1)

4X - 2Y = 28 years.............(2)

Divide equation (2) by 2 to get;

(4X - 2Y)/2 = (28 years)/2 which gives;

2X - Y = 14 years.................(3)

Add equation (3) to equation (1), to get;

X + Y +  2X - Y = 26 years + 14  years

3X = 40 years

X = 40/3 = 13.333 Years

From equation (1), X + Y = 26 years, therefore;

Y = 26 - X = 26 - 13.33 = 12.67 years

Therefore, the age of Noi = 13.333 Years and the age of Noy = 12.67 years.

3 0
4 years ago
The area of a square garden is 200 m^2. How long is the diagonal?
Sladkaya [172]

Answer:

b. 20 m

Step-by-step explanation:

Let A represent the area

Let d represent the diagonal

then

A=\frac{d*d}{2} = \frac{d^{2} }{2}

Then

d² = 2A

then

d = \sqrt{2A} =\sqrt{2*200} =\sqrt{400} = 20

8 0
3 years ago
Assume a*b means a + b - 1. <br> what is 5 * 3
nata0808 [166]

Answer:

5*3=5+3-1 (acc to question)

5*3=7

8 0
3 years ago
Other questions:
  • What is the result to 4.4a-7.3
    12·1 answer
  • Nestor need 750 centimeters of rope . Rope comes in lengths of 4 1/2 meters and 9 meters at the hardware store. Which length of
    10·1 answer
  • Write an even number between 7 and 16 draw a picture and the write a sentence to explain why it is an even number
    14·1 answer
  • Four cards are drawn from a deck without replacement how many possible
    12·1 answer
  • Afirm’s marketing manager believes that total sales X can be modeled using a normal distribution with mean m ¼ $2.5 million and
    15·1 answer
  • 1-10x+4x solve the equation
    9·1 answer
  • can some one also please help my one that i should do after i finds the area of the square aka how to find the area of the trian
    5·1 answer
  • What is (-76) × (-2a)​
    5·1 answer
  • Two​ trains, Train A and Train​ B, weigh a total of 318 tons. Train A is heavier than Train B. The difference of their weights i
    5·2 answers
  • PLEASE HELPPPPPP EASY
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!