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
Oksanka [162]
2 years ago
6

?• (-10) = 90 Please help I need it now

Mathematics
2 answers:
Ivan2 years ago
5 0

Answer:

x = -9

Step-by-step explanation:

x • -10 = 90

x = 90/-10

x = -9

Hope this helped! <3

hichkok12 [17]2 years ago
3 0

Answer:

-9 x (-10) = 90

Good Luck & Have A good Day! :)

You might be interested in
What is f(x)=14−0.5x? <br><br> solve for f(30)
UkoKoshka [18]
The function f(x) is a function of the variable x.

To solve the function for x = 30, just plug in 30 for x.

14 - 0.5(30) = -1

f(30) = -1
3 0
3 years ago
a metal worker has a metal alloy that is 20% copper, and another metal alloy that is 60% copper. How many kilograms (kg) of each
emmainna [20.7K]

Let X = the 29% alloy and Y = the 60% alloy.

They want a total of 80kg, so you have X +Y = 80

Rewrite that to get X = 80-Y


You also want 0.20X + 0.60Y = 0.52(80)

Replace X with 80-y:

0.20(80-y) + 0.60y = 0.52(80)

Simplify:

16 - 0.20y + 0.60y = 41.6

Combine like terms:

16 +0.40y = 41.6

Subtract 16 from each side:

0.40y = 25.6

Divide both sides by 0.40

y = 25.6 / 0.40

y = 64


Now you have Y replace y with 80 in X = 80-Y

X = 80 - 64

X = 16

They need 64 Kg of the 60% alloy and 16 Kg of the 20% alloy.


5 0
3 years ago
Number 5? I have no idea where to even start?
EleoNora [17]
Y = 28000-(8500*3)
8500 is the yearly deprecation value times 3 because it is 3 years
5 0
3 years ago
2) In a class of 31 students, some study Physics and some study Chemistry. If 22
Annette [7]
I believe the answer is C
3 0
3 years ago
Use Cramers Rule to solve the system <br> 2x - 3y = 11<br> -6x + 8y = 34
Nastasia [14]

Step-by-step explanation:

given :

2x - 3y = 11

-6x + 8y = 34

find : the solutions of the system by using Cramers Rule.

solutions:

in the matrix 2x2 form =>

[ 2 -3] [x] [11]

=

[-6 8] [ y] [34]

D =

| 2 -3 |

|-6 8 |

= 8×2 - (-3) (-6)

= 16-18 = -2

Dx = | 11 -3 |

| 34 8 |

= 11×8 - (-3) (34)

= 88 + 102

= 190

Dy = | 2 11 |

|-6 34 |

= 2×34 - (-6) (11)

= 68 + 66

= 134

x = Dx/D = 190/-2 = -95

y = Dy/D = 134/-2 = -67

the solutions = {-95, -67}

8 0
3 years ago
Read 2 more answers
Other questions:
  • Carlita purchased 8 1/2 pints of ice cream for a party. If each guest will be served exactly 1/2 pint of ice cream, what is the
    9·1 answer
  • Consider the parabola given by the equation: f(x) = 4x² - 6x - 8 Find the following for this parabola: A) The vertex: Preview B)
    9·1 answer
  • The equation A = p + prt is used to find the accumulated amount, A, of an investment with principal, p, a certain interest rate,
    9·2 answers
  • Algebra stratigies? what are some? I need answer Fast
    13·2 answers
  • Two computer technicians, Sue and Kiana, each counted the number of computers that she had repaired every day for 2 weeks. Their
    8·2 answers
  • PLEASE HELP!!!! SEE PICTURE BELOW!!
    11·1 answer
  • Suppose that on the average, 7 students enrolled in a small liberal arts college have their automobiles stolen during the semest
    12·1 answer
  • Find the measure of the indicated angle to the nearest degree​
    9·1 answer
  • Please answer need for geometry
    9·1 answer
  • HELP I NEED HELP ASAP
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!