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
kobusy [5.1K]
3 years ago
8

Simplify the expression: 2+(a +5) =

Mathematics
2 answers:
nekit [7.7K]3 years ago
6 0
Answer:

a+7

Step-by-step explanation:

2 + 5 = 7
7+a or a+7
Nataliya [291]3 years ago
6 0

Answer:

a=-7

Step-by-step explanation:

first we do commutative property of real number

the expression becomes ;

2+(7+a)=

then association property follow-up

(2+7)+a=

7+a=

then we minus 7 to both sides

7-7+a=-7

0+a=-7

a=-7

You might be interested in
The sum of the ages of Francisco and Natalie is 98 years. 11 years ago, Francisco's age was 3 times Natalie's
zaharov [31]

Answer:

I think Francisco age is 40.

Step-by-step explanation:

If 11 years ago Francisco's age was 3 times Natalie's, that means 11 years their combined ages were 87 years. 87 years divided by 3 is 29 plus the 11 years.

7 0
3 years ago
One year, the population of a city was 333,000. Several years later it was
Sunny_sXe [5.5K]

Answer:12%

Step-by-step explanation:

(333000-293040)×100/333000

7 0
3 years ago
Two boxes have the same volume. Box 1 has dimensions of 8 ft. by 4 ft. by 3 ft. Box 2 has dimensions of 12 ft. by 4ft by 2 ft. T
hram777 [196]
You would have to find the surface areas of each box, which would be 8*4 *2, 8*3 *2, and 4*3 *2. That *3, would be the cost, and then surface area of 2 would be 12*4 *2, 12*2 *2, and 2*4 *2. That *3 would again be the cost to make the box. That all would be A=64 + 48 + 24, or 136*3 = $408 to make box A, and box B=96 + 48 + 16 = 160*3 = $480 to make box B. Therefore, box B, or $480 - $408 = $72 more.
3 0
3 years ago
Marco read that a honey bee can fly up to 2.548meyers per second. he rounded the number to 2.55. to witch place valuedid marcoro
Kay [80]
He rounded to the hundredths place.
4 0
4 years ago
A tree cutting business has an insurance policy to cover any damages caused during the tree cutting process. The business pays a
Yakvenalex [24]

Answer:

  -$500

Step-by-step explanation:

The expected value of a payment from the policy is ...

  $500,000 × 0.002 = $1000

Since the business pays $1500 for the policy, the expected value to the business is ...

  $1000 - 1500 = -$500 . . . per year

_____

Of course, the expected value to the insurance company is $500 per year.

_____

We have computed on the basis of 1 claim per year. If we consider the possibility of multiple independent claims, then the expected payment from the insurance goes up by a factor of 1/(1 -0.002) ≈ 1.002004008016.... This has the effect of increasing the expected value by $2.00 per year to -$498.

3 0
4 years ago
Other questions:
  • PLEASE HELP
    12·1 answer
  • the perimeter of a rectangle is 56 m. if the width were doubled and the length were increased by 8 m, then the perimeter would b
    15·1 answer
  • Ginger's puppy weighed pounds when she first took him home. The veterinarian said the puppy cannot eat dry dog food until he wei
    13·1 answer
  • 22
    12·1 answer
  • Ibb this is for u dhbvkvh
    15·1 answer
  • The sum of the angles of a triangle is 180. Find the three angles if one angle is twice the smallest angle and the third angle i
    13·2 answers
  • 3 possible combinations of the items he can buy
    6·2 answers
  • What is perimeter of 300 315 55
    6·1 answer
  • Can you help me with these algebra problems please
    10·1 answer
  • An Airbus A330-300 carried 4,172 passengers last week, and all of its flights were full. How many flights did the airplane make
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!