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
GuDViN [60]
3 years ago
5

Use mental math to simplify the expression. (5 + 23) + 65

Mathematics
1 answer:
ohaa [14]3 years ago
8 0
1. (5+23)+65 = (5+65)+23 = 70+23 = 93 (D)
2. -(4x-7) = -4X+7 (C)
3. 2(6X+9) = 12X+18 (B)
4. 5(X-3) = 35
X-3 = 35/5
X-3 = 7
SO X= 7+3 = 10

THEN NO
9 IS NOT A SOLUTION
You might be interested in
at the movies you order 3 boxes of popcorn and bottle of water the cost of the bottle of water is $1.75.Your total cost is $9.25
gladu [14]

Answer:

Cost of popcorn= $9.25 - $1.75 ÷ 3

Cost of popcorn= $7.50 ÷ 3

Cost of popcorn= $2.50 per box

Step-by-step explanation:

I am not that sure about the equation, but I know the answer

3 0
4 years ago
Read 2 more answers
Ethan will be going on a study tour to England in a week. which currency should he use while in England?
inessss [21]
Pound Sterling is current currency in england
4 0
4 years ago
Read 2 more answers
Four brothers each bought two hot dogs and a bag of chips at the football concession stand. If the bag of chips was $1.25, and t
IRISSAK [1]
Items bought in total:
4 brothers X two hot dogs and one bag of chips=
4X3=
12.

Hot dogs- x, chips- y.
4y + 8x= $18.20

Chips= $1.25 each so
4($1.25) + 8x= $18.20
5 + 8x= $18.20
8x= $18.20-5
8x= $13.20
x= $13.20/8 [13.20 divided by 8]
x= $1.65

This means that one hot dog= $1.65.

If you’re unsure what to write as the answer I’d suggest that you put all the working out down in your copy/notes.
3 0
3 years ago
How do you solve 3^2x=81
qwelly [4]

Answer:

x=2

Step-by-step explanation:

3^2x = 81

3^2x = 3^4

Compare powers

2x = 4

x = 2

4 0
3 years ago
Read 2 more answers
A stunt man wants to drive a car off a ramp at an angle of 35∘ from the ground. He already has a ramp with an angle of 15∘. He p
eduard

Answer:

The second ramp needs to have 25°.

Step-by-step explanation:

Required ramp angle for driving the car from the ground = 35°.

First ramp angle = 15°

Therefore, second ramp angle equals required ramp angle minus first ramp angle, which is = 35° - 15° = 20°

The 20° ramp angle will make the total ramp angle to be equal to 35°.

That is 15° + 20° = 35°

4 0
3 years ago
Other questions:
  • Shona cycles at an average speed of 8km/h. How far has she travelled if she cycles for 4 hours
    13·1 answer
  • Number 15 please and thanks
    5·1 answer
  • (V2.00)<br>Rewrite f(x) = -2(x - 3)2 + 2 from vertex form to standard form.<br>​
    9·1 answer
  • 7.
    13·2 answers
  • Translate the following phrase into an algebraic expression. Do not simplify. Use the variable names "x" or "y" to describe the
    8·1 answer
  • An arc subtends a central and measuring pi/2 radians.
    6·1 answer
  • If there are tickets sold to children for $5 and $12 to adults, and there are only 400 tickets sold for $3925 then how many chil
    11·1 answer
  • Gentry Industries has the following information about maintenance costs in the past six months.
    12·1 answer
  • A mixture is made with 45 ounces of a 10% saline solution and $x$ ounces of a 70% saline solution. The resulting mixture is a 25
    11·1 answer
  • Suppose a computer manufacturer has the total cost function
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!