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Slav-nsk [51]
3 years ago
14

Combine like terms -4a+8+3a-9

Mathematics
2 answers:
Sunny_sXe [5.5K]3 years ago
5 0

Answer: -a+1

Step-by-step explanation:

 -4a+8+3a-9

=-4a+3a+8-9

=(-4a+3a)+(8-9)

=-a+1

Hope this helps!! :)

vova2212 [387]3 years ago
3 0

Answer: -a -1

Step-by-step explanation:

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To practice for a competition, Sonya swam 0.94 kilometer in the pool each day for 3 weeks. How many meters did Sonya swim in tho
Strike441 [17]

Answer:

Distance swam by Sonya in 3 weeks = 19740 m

Step-by-step explanation:

To practice for a competition, Sonya swam 0.94 kilometer in the pool each day for 3 weeks.

Number of days in 1 week = 7

Number of weeks she swam = 3

Total number of days she swam = 3 x 7 = 21 days

Distance swam per day = 0.94 km

Total distance swam = Total number of days she swam x Distance swam per day

Total distance swam = 21 x 0.94 = 19.74 km = 19.74 x 1000 m = 19740 m

Distance swam by Sonya in 3 weeks = 19740 m

7 0
3 years ago
How do i solve the equation 5n+4=-26  
ozzi
You do 

-26
-4
---
-30

5n=-30 so...

-30/5=-6

Therefore 
n=-6
3 0
3 years ago
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Based on the diagram, what is the reduced area inside the blood vessel?
pychu [463]

Answer:

: Stroke Brain cells do not get the nutrients they need if blood flow to the brain …

Step-by-step explanation:

3 0
3 years ago
I don’t really get this question can someone help me out
Inessa [10]

angles EFH and GFH are congruents

for the second equivalence criterion  two triangles are equivalents if they have  respectively  2 angles and 1 side congruents

the two triangles have congruents the angle right angle (HGF and HEF) and the 55 degrees angles (EFH and GFH); then they have in common the HF side.

so the triangles are congruent and so all the sides are respectively congruent,for example EH with HG:

EH=HG

s+36=7s

s+36-7s=0

s-7s=-36

-6s=-36

6s=36

s=6

<em>sorry for my english</em>

5 0
4 years ago
How I simplify this real life expression and show unit analysis?
Anton [14]

The value of the real life expression is, simple interest = $12.5

<h3>How to simplify this real life expression and show unit analysis?</h3>

The real life expression is given as:

simple interest = ($100) (0.05/year) (2.5 years

Divide 1 year by 1 year

simple interest = ($100) (0.05) (2.5)

Rewrite the equation as a product of factors

simple interest = ($100) * (0.05)*  (2.5)

Evaluate the product of 0.05 and 2.5

simple interest = ($100) * 0.125

Evaluate the product of $100 and 0.125

simple interest = $12.5

Hence, the value of the real life expression is, simple interest = $12.5

Read more about expressions at:

brainly.com/question/723406

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6 0
2 years ago
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