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Nady [450]
3 years ago
8

Find the sum of 12a + 7b, −6a − 9, and 14a − 12b.

Mathematics
2 answers:
VARVARA [1.3K]3 years ago
4 0

Answer:

20a + -5b + -9

Step-by-step explanation:

Taya2010 [7]3 years ago
3 0

Answer:

Step-by-step explanation:

20a-5b-9

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Can you please help me solve thanks step by step
shusha [124]

Answer:

40 degrees

Step-by-step explanation:

We know the entire angle of ABD is 70 and CBD and ABC are in it.

Since we know one of them (CBD) is 30, we can subtract 30 from 70 to find ABC. This is because the angle of ABC and CBD equal ABD.

30 + x = 70

-30 from both sides

x = 40

6 0
3 years ago
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Sanam eats 5 almonds daily. How many almonds does she eat in 157 days?​
Ede4ka [16]

Answer:

785 almonds

Step-by-step explanation:

157 x 5 = 785

8 0
2 years ago
Five bikers join a race. In how many possible ways can they be arranged as
PolarNik [594]

Answer:

60 different possibilities

Step-by-step explanation:

Number of bikers = 5

Positions = first, second and third

First positions = all 5 riders can take the first spot = 5 possibilities

Second spot = position 1 has been filled hence number of possibilities = ( 5 - 1) = 4

Third spot = position 1 and 2 has been filled ; number of possibilities =. (5 - 2). = 3

Number of possible arrangements :

5 * 4 * 3 = 60 different possibilities

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3 years ago
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The surface area would be 166.
4 0
3 years ago
Solve the inequality.2/5 ≥ w -3/5 A. w ≤1/2 B. w ≤ 1 C. w ≥ 1 D. w ≤1/5
Sunny_sXe [5.5K]
We must solve   <span>2/5 ≥ w -3/5.  Note that w is already +, so leave it where it now is.  Add 3/5 to both sides of this inequality:

2/5 + 3/5 </span>≥ w  - 3/5 + 3/5

Then:  1 ≥ w, or w ≤ 1  (answer)
6 0
3 years ago
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