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
bazaltina [42]
3 years ago
14

Evaluate when a=7 and x = -5 -a+3x

Mathematics
2 answers:
Tema [17]3 years ago
6 0
A = 7 and x = -5

-a + 3x = -(7) + 3(-5) = -7 -15 = -22

Answer: -22
luda_lava [24]3 years ago
5 0
 Hello there!

a = 7 and x = -5

-a + 3x

We gonna replace each letters by the number given for them...

-7 + 3(-5)

= -7 - 15

= -22

Let me know if you have any questions As always, it is my pleasure to help students like you!
You might be interested in
Calculate the answer, express it in scientific notation.
castortr0y [4]
The first one
the first 2 numbers gives a power of 1 then the second gives you 1-4.
1+1-4 is -2 so its the first one
7 0
2 years ago
Hannah can paint a room in 20 hours. Destiny can paint the same room in 16 hours. How long does it take for both Hannah and Dest
UNO [17]
Amount of room hannah can paint in an hour = 1/20
amount of room destiny can paint in an hour = 1/16
number of hours = x

1/20x + 1/16x = 1
the reason why this formula is true is, the amount of the room painted in the end should be 1 (the whole room)

4/80x + 5/80x = 1
9/80x = 1
9x = 80
x = 80/9 hours
x = 8.89 hours

8 0
3 years ago
Help picture below problem 12
inysia [295]

Answer:

124°

Step-by-step explanation:

Not the best at explaining but should be equal to 180 straight across. You have to find the missing angle. You know the right angle is 90° so you will add 34° to get 124°. 180-124 will get you 56°. Straught across you have the angle that you are trying to find which is 124° because 180-56 is 124.

8 0
2 years ago
The length of a rectangle is 5 inches more than it's width, x. The area of a rectangle can be represented by the equation.x^2+5x
Digiron [165]

Answer:

the width=15; the length=20

Step-by-step explanation:

1. to solve the given equation: x²+5x-300=0;

x₁= -20; x₂=15, where 'x' can be only positive value. It means x=15;

2. according to the condtition the length is more, it means 15+5=20.

3. the width is x=15; the length is 20.

8 0
3 years ago
Can someone help me understand how to do math problems in Gemoery S.O.L Unit 0, Logic and problem solving. Problem Solving Strat
gregori [183]
I can help u if u do need stell
4 0
2 years ago
Other questions:
  • 1. Solve for the variable in the following proportion.
    14·2 answers
  • Hayley babysat for two hours each night for 10 nights.She earns a total of $300 babysitting.Hayley wants to calculate her hour r
    13·2 answers
  • 3. A test has 20 questions worth 100 points total. The test consists of True/False questions worth 4 points each and multiple ch
    5·2 answers
  • How much of the circle is shaded 1/3+3/8
    6·1 answer
  • What is the magnitude of the resultant of z-y?<br> x=9i-j-2k<br> y=-6i+2j-k<br> z=-i+5j+3k
    13·2 answers
  • » Suzie's water bottle holds 4 cups of water. How many times can she fill her water bottle
    9·2 answers
  • A grilled chicken salad and a popular food restaurant contain 650 mg of sodium which is 27% of the recommended daily amount what
    13·1 answer
  • Why my dad be so racist. Like he’s just like NO no please don’t marry a balck guy.
    10·1 answer
  • Geometric or arithmetic<br> 4,10,16,22
    13·1 answer
  • Multiply.<br> -1/4 times (-2/5<br> Write your answer in simplest form.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!