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
Scrat [10]
3 years ago
7

-5a-9+a=15 Explain please

Mathematics
2 answers:
IgorC [24]3 years ago
8 0

Answer:

a = -6

Step-by-step explanation:

-5a-9+a=15

Combine like terms

-5a+a  -9 = 15

-4a  -9 = 15

Add 9 to each side

-4a -9+9 = 15+9

-4a = 24

Divide by -4

-4a/-4 = 24/-4

a = -6

Artist 52 [7]3 years ago
5 0

Answer:

a = -6

Step-by-step explanation:

1. Combine like terms: -4a – 9 = 15

2. Use the additive property of equality to add 9 to both sides: -4a = 24

3. Use division property of equality to divide -4 on both sides: a = -6

You might be interested in
a rectangular prism with a volume of 3 cubic units is filled with cubes with side lengths of 1/4 unit.how many 1/4 unit cubes do
Anvisha [2.4K]

Answer:

12

Step-by-step explanation:

3 divided by 1/4 = 3 x 4 = 12

8 0
3 years ago
Solve for x round to the nearest tenth
lidiya [134]

Answer:

47.0

Step-by-step explanation:

In this right angle triangle, we are faced with a challenge of two sides. The opposite side and the adjacent side, hence the tangent is used.

Where it is the opposite side and hypothenus side, the sine is used and when it is the hypothenus side and adjacent side, the cosine is used.

Hence, we have tan62°=x/25

We cross multiply, to have

25(tan 62°)= x

x = 47.01816

In rounding up numbers, number 1 to 4 will be rounded up to zero, while numbers 5 to 9 will be rounded up to 1.

Rounding up 47.01816 to the nearest tenth. The tenth value is the figure is 0, before it we have 1, which is to hundredth. 1 will be rounded up to zero.

So we have 47.0

3 0
3 years ago
The area of a circle A is 85π ft2. ∠BAC is a central angle of the circle, and m∠BAC = 36°
BlackZzzverrR [31]
As stated the area of the circle is 85π ft2. The area of the sector BAC is a portion of this full circle area. the sector is made of 2 radii and arc that has rotated by 36°.
the magnitude of the central angle in the circle is 360°
Area for 360° central angle -  85π ft2
then the area for 1°            =  85π ft2/360°
the area of 36° sector         =  85π ft2/360° x 36°
                                           =  8.5π ft2
7 0
3 years ago
HELP I will mark branliest!!!!
Klio2033 [76]

Answer:

Rah&fyjftyhh

Step-by-step explanation:

for TY hfhef

7 0
3 years ago
Read 2 more answers
Metrics are based on the british system of weights and measures. true false
HACTEHA [7]
I looked it up, and it said false.
4 0
3 years ago
Read 2 more answers
Other questions:
  • An elevator descends 1,000 feet in 8 seconds what is the change in height per second
    11·1 answer
  • What is 7981 km and 943 m in milametres?
    5·2 answers
  • For the breakfast buffet, Mr. Walker must equally divide 12 loaves of bread between seven platters. How many loaves of bread are
    15·1 answer
  • After eating at the restaurant, Tom, Benny, and Sally decides to divide the bill evenly. If each person paid 37 dollars, what wa
    9·2 answers
  • What exactly is a circle? How do we use circles to reason about distance without using a ruler?​
    9·1 answer
  • I need help (box plots) I just need help with A.
    15·1 answer
  • Can we predict how fast a tennis player can hit a serve from the playerâs height? The following computer output and scatterplot
    14·1 answer
  • Is second term of a geometric series is 48 and it's fifth term is 6 then find the sum of the first 6 terms.​
    5·1 answer
  • six cocker spaniels have a total weight of 192 pounds. Five golden retreivers have a average weight of 71 pounds. what is the av
    8·1 answer
  • Find k and help with the equation!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!