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
ololo11 [35]
3 years ago
5

Simplify the following expression: 5(2x-4)-4(2-5x)

Mathematics
1 answer:
USPshnik [31]3 years ago
8 0

Answer:

30x - 28

Step-by-step explanation:

distribute

5(2x) - 5(4) -4(2) - 4(-5x)

10x - 20 - 8 + 20x

30x - 28

You might be interested in
Ms. Hartt burns 300 calories when she runs for 1 hour. If Ms. Hartt runs 5 hours in a week how many calories would she burn?
Schach [20]
Answer: If Ms. Hartt burns 300 calories in 1 hour, and runs 5 hours in a week, she burns 1,500 calories in a week.

Explanation: 300 x 5 = 1,500
6 0
3 years ago
What is the ? in this pattern <br><br><br> 3, -6, 12, 4, 20, ?
SCORPION-xisa [38]
Is skipped a number and that's not good
5 0
3 years ago
Brian invests £4000 into his bank account.
siniylev [52]

Answer:

14 years

Step-by-step explanation:

£280 is 7% of 4000 so £4000 euro more would be 4000/280 = 14

7 0
2 years ago
Megan buys 3 bracelets and 3 necklaces each bracelet cost 5 dollars each in dollars of one she gave the clerk 40$
Tatiana [17]

Not sure what answer your needing so here is a breakdown of the amounts.

3 bracelets times $5 equals $15

How much is each necklace?

Subtract $15 from $40 you have $25 left. Then you divide $25 by 3 you get each necklace costs $8.33 so three necklaces cost $24.99

When you add $15 from the bracelets and $24.99 from the necklaces your total is $39.99 that’s why Megan gave the clerk $40

Hope this helps

7 0
3 years ago
The parabola y=ax^2+bx-10 passes through the points (4.5,8) and (-2.5, 15). Determine the values of a and b
yuradex [85]
y=ax^2+bx-10 \\ \\&#10;(4.5,8) \\&#10;8=a \times 4.5^2 + b \times 4.5-10 \\&#10;8=20.25a+4.5b-10 \ \ \ |+10 \\&#10;18=20.25a+4.5b \\ \\&#10;(-2.5,15) \\&#10;15=a \times (-2.5)^2+b \times (-2.5)-10 \\&#10;15=6.25a-2.5b-10 \ \ \ |+10 \\&#10;25=6.25a-2.5b

The system of equations:
18=20.25a+4.5b \ \ \ |\times 5 \\&#10;25=6.25a-2.5b \ \ \ |\times 9 \\ \\&#10;90=101.25a+22.5b \\&#10;\underline{225=56.25a-22.5b} \\&#10;90+225=101.25a+56.25a \\&#10;315=157.5a \ \ \ |\div 157.5 \\&#10;a=2 \\ \\&#10;25=6.25a-2.5b \\&#10;25=6.25 \times 2-2.5b \\&#10;25=12.5 -2.5b \ \ \ |-12.5 \\&#10;12.5=-2.5b \ \ \ |\div (-2.5) \\&#10;b=-5 \\ \\&#10;\boxed{a=2} \\ \boxed{b=-5} \\ \boxed{y=2x^2-5x-10}
6 0
3 years ago
Other questions:
  • I need help with the worksheet
    9·2 answers
  • Jack is a college athlete who has been weighing himself weekly on the same scale in the athletic center for the past few years.
    12·1 answer
  • A car is traveling at 70 ​mi/hour. What is the​ car's speed in feet per​ second?
    7·2 answers
  • What’s x to 5x+2 is greater than 3x+10
    8·2 answers
  • (1 point) In this problem we consider an equation in differential form M dx + N dy = 0. (8x + 8y)dx + (8x + 4y)dy = 0 Find My =
    15·1 answer
  • Which equation can be used to find the volume of this solid?
    10·2 answers
  • Graph the line with intercept 6 and slope <br><img src="https://tex.z-dn.net/?f=%20-%20%20%5Cfrac%7B3%7D%7B2%7D%20" id="TexFormu
    8·1 answer
  • Pls help I have a test today in math :( no 1 would help me pls try to help and its in 12:20 so I have a lot of time but pls help
    5·2 answers
  • Jackson invested $590 in an account paying an interest rate of 6 % compounded
    11·1 answer
  • Omar broke a cell sample into 8 batches, each
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!