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
Elenna [48]
3 years ago
9

NEED HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! DUE TODAY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Slav-nsk [51]3 years ago
8 0

Answer :

1. -3x + 6 = -9

-3x = -9 - 6

-3x = -15

x = -15 / -3

x = 5

2. 5m + 4m = 72

9m = 72

m = 72 / 9

m = 8

3. 6d - 10d = 40

-4d = 40

d = 40 / -4

d = -10

4. 2(x + 4) = 30

2x + 8 = 30

2x = 30 - 8

2x = 22

x = 22 / 2

x = 11

5. 78 = -2(m + 3) + m

78 = -2m - 6 + m

78 = -m - 6

78 + 6 = -m

84 = -m

m = -84

You might be interested in
Simplify mn^-4/p^0q^-2. <br><br> A. mq^2/n^4. <br> B. mp/n^4. <br> C. mn^-4q^2p^0. <br> D. q^2/mn^4
Valentin [98]

To simplify the expression, we can check if there are terms that are needed to be added or subtracted. In this case, there are none.<span> </span>The negative power of a variable can be turned into a positive one by placing the variable to the other side of the line. a number or variable raised to zero is equal to 1. In this case, the answer is A. m q^2 / n^4. 
6 0
4 years ago
One number is 3 less than 4 times a second number. The difference of the first number and twice the second number is 7. What are
Nikolay [14]

Answer:

atq= let no.be x and y

x= 4y-3.......(1)

x-2y=7....(2)

subtracting both eqn

x-x+2y=4y-3-7

2y=4y-10

-2y= -10

y=5 ........second no.

first no...x=7+2y=7+10=17.......first no....

5 0
3 years ago
I dont get iiiittttt <br> please help 40 points
julia-pushkina [17]

Answer:

15/28

Step-by-step explanation:

____________________________

7 0
3 years ago
Read 2 more answers
During a clearance sale, a discount of 33.3% is given on a dinner set marked at $2799. Find it's selling price
Mashcka [7]

First, convert the 33% to a real mathematical number. For percents, this is always done by dividing the 33% by 100%, or 33% / 100% = 0.330.

Second, find out what 33% of $2799 is. This is the amount of the sale discount. This is always found by mulitplying 0.330 by the item's cost $2799, like this:

0.330 x $2799 = $923.67.

So for this sale, you'll save $923.67 on this item.

This means, the cost of the item to you is

$2799 - $923.67 = $1875.33.

Alternatively, you can think about it this way. The item is 33% off. This means you'll pay 67.000% of the total cost (100% - 33% = 67.000%).

Now what's 67.000% of the total cost?

0.670 x $2799 = $1875.33.

Just like the result above, the sale price on the item is $1875.33.

Hope this helps you on your assignment! :)

4 0
4 years ago
What is a math paper?
exis [7]

Answer:

usually gridded paper, with 1 by 1 squares

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • Plz help...............
    5·1 answer
  • Holly wants to monitor her daily calcium intake. One day she had 3 cups of milk and 1 cup of spinach for a total of 1140 mg of c
    11·1 answer
  • Sd98cdcsddddddddddddddddddddiiiiiiiiiiiiiiiiii
    9·1 answer
  • Which expressions are equivalent to 22c + 33d?
    14·1 answer
  • A geometry student says; "I got lost in that lesson - I wrote down that AD/AB = AC/AB but I have no idea
    8·1 answer
  • On a coordinate grid, point A is at (−3.0, −5.4) and point B is at (−3.0, 5.4). Point B is a reflection of point A across the __
    11·1 answer
  • Find exact value of cos
    10·2 answers
  • An escalator lifts people to the second floor of a building, 25 ft above the first floor. The escalator rises at a 30o angle. To
    8·1 answer
  • A number is such that it is as much greater than 112 as it is less than it . find the number​
    11·1 answer
  • I really need help on this question
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!