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Inga [223]
2 years ago
12

Cost of a Lunch in a School's Cafeteria

Mathematics
1 answer:
castortr0y [4]2 years ago
7 0

Answer:Wanna play warzone?

Step-by-step explanation:

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Help with the this question pleaseeee
34kurt

Answer:

32x - 8

Step-by-step explanation:

A = LW

A = (8x - 2)(4)

A = 32x - 8

7 0
2 years ago
Read 2 more answers
19.25 divided by 3.5
Colt1911 [192]

Answer:

It would be 5.5

for a better understanding, look it up on google

4 0
3 years ago
Twenty-six , 2 tens 6 ones , 25, 20+6 which one is the odd one out?
Aneli [31]

Answer:

25

Step-by-step explanation:

twenty-six=26

2 tens 6 ones= 26

25=25

20+6=26

25 is the odd one out.

8 0
3 years ago
There is a triangle with a perimeter of 63 cm, one side of which is 21 cm. Also, one of the medians is perpendicular to one of t
NemiM [27]

Answer:

21cm; 28cm; 14cm

Step-by-step explanation:

There is no info in the problem/s  text which one of the triangle's  side is 21 cm. That is why we have to try all possible variants.

Let the triangle is ABC . Let the AK is the angle A bisector and BM is median.

Let O is AK and BM cross point.

Have a look to triangle ABM.  AO is the bisector and AOB=AOM=90 degrees (means that AO is as bisector as altitude)

=> triangle ABM is isosceles => AB=AM  (1)

1. Let AC=21   So AM=21/2=10.5 cm

So AB=10.5 cm as well.  So BC= P-AB-AC=63-21-10.5=31.5 cm

Such triangle doesn' t exist ( is impossible), because the triangle's inequality doesn't fulfill.  AB+AC>BC ( We have 21+10.5=31.5 => AB+AC=BC)

2. Let AB=21 So AM=21 and AC=42 .So  BC= P-AB-AC=63-21-42=0 cm- such triangle doesn't exist.

3. Finally let BC=21 cm. So AB+AC= 63-21=42 cm

We know (1) that AB=AM so AC=2*AB.  So AB+AC=AB+2*AB=3*AB

=>3*AB=42=> AB=14 cm => AC=2*14=28 cm.

Let check if this triangle exists ( if the triangle's inequality fulfills).

BC+AB>AC    21+14>28 - correct=> the triangle with the sides' length 21cm,14 cm, 28cm exists.

This variant is the only possible solution of the given problem.

6 0
2 years ago
Max lost 128 pounds in 16 weeks on his new weight-loss plan. What was his average change in weight per week?
Alex

Answer:

8 pounds per week

Step-by-step explanation:

AVG= total/time span

so

AVG= 128/16

AVG= 8 pounds per week

Hope this helps!

7 0
2 years ago
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