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Sonbull [250]
3 years ago
14

Sela's piano lesson starts at 4:45pm. The lesson is 30 minutes long. When does her lesson end

Mathematics
2 answers:
Nana76 [90]3 years ago
8 0

Answer:

Her piano lesson ends at 5:15pm

Hope it helps:)

nalin [4]3 years ago
4 0

Answer:

The lesson ends at 5:15 pm.

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Write the answer in numeric form?
kondor19780726 [428]

Answer:

x=11. 38 degrees; 52 degrees

Step-by-step explanation:

90+6x-14+3x+5=180

81+9x=180

9x=99

x=11

38 degrees, 52 degrees

8 0
3 years ago
Simplify: (7+2a)·3–20 =
Black_prince [1.1K]
<h2>Greetings!</h2>

Answer:

6a + 1

Step-by-step explanation:

First, you need to multiply everything in the brackets by 3L

(7 + 2a) x 3 =

7 * 3 = 21

2a *  3 = 6a

21 + 6a

Now you can subtract the 20 from this:

6a + 21 - 20

Simplified down:

6a + 1


<h2>Hope this helps!</h2>
6 0
3 years ago
The graph shows the volume of oil (L litres) in a tank at time t seconds. a)find the gradient of the graph b)explain what this g
Alisiya [41]

Answer/Step-by-step explanation:

a. Using two points on the line (0, 2) and (4, 12), find the gradient:

Gradient = ∆y/∆x = (12 - 2) / (4 - 0) = 10/4 = 2.5

Gradient = 2.5

b. The gradient, 2.5, represents the unit rate. That is, the volume of the oil in the tank per second.

i.e. 2.5 litres per second

c. The value, L = 2 represents the y-intercept, which is the starting value or initial volume of oil in the tank at 0 secs.

4 0
2 years ago
Change improper fraction to mixed numbers<br><br> Complete A
Elena-2011 [213]

Step-by-step explanation:

<u>Step 1:  Convert improper fraction into a mixed number</u>

\frac{7}{6}

\frac{6}{6} + \frac{1}{6}

1 + \frac{1}{6}

1\frac{1}{6}

Answer: 1\frac{1}{6}

6 0
3 years ago
Read 2 more answers
to pour the concrete sidewalk approximately how many cubic feet of topsoil will you need to remove for the 4"thick sidewalk if t
Elis [28]

Answer:

i have no clue I just need extra points

4 0
3 years ago
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