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Oduvanchick [21]
2 years ago
10

Please help! Khan question

Mathematics
1 answer:
Rudik [331]2 years ago
7 0

Answer:

7=2+r

Step-by-step explanation:

Since the figure represents a balanced equation, then both sides add up to be the same:

1+1+1+1+1+1+1=1+1+r\\7=2+r

Not sure which one Khan is asking for :|

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Quadrilateral BCDE has vertices B(-1, -1), C(6,-2), D(5, -9), and E(-2,-8).
natima [27]
B because it make the most sense
3 0
3 years ago
Gabrielle's age is three times Mikhail's age. The sum of their ages is 20. What is Mikhail's age?
PtichkaEL [24]

Answer:

Mikhail is 5 years old

Step-by-step explanation:

Represent each member with a variable.

X= Gabrille

Y=Mikhail

X+Y=20 (sum of their ages is 20)

X=3y (Gabrille is 3 times Mikhails age)

Substitute 3Y into the first equation (simultaneous equation)

. 3y+y=20

. 4y=20 (divide both sides by 4)

y=5

To check your answer.

X+5=20

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X=15

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4 0
2 years ago
Read 2 more answers
The faces of a rectangular solid are square.<br> always<br> sometimes<br> never
Sonja [21]

Answer:

sometimes

Step-by-step explanation:

We can consider the example of a cuboid.

It is a rectangular solid whose all faces are made of rectangles.

But if we will consider a example of cube; which is also a kind of rectangular solid whose all faces are made up of square.

so we can get some solids whose faces are other than squares as well and some whose faces are squares.

Hence, we could say that:

The faces of a rectangular solid are sometimes square.

4 0
3 years ago
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Anyone can help ?<br><br>I'm from Indonesian :)​
Sphinxa [80]

Answer:

624

Step-by-step explanation:

2(\frac{1}{2}  \times 6 \times 8 ) + (24 \times 8) + (24 \times 6)  + (10 \times 24)\\  = 624

5 0
3 years ago
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Max worked 6.23 hours on Monday, 7.45 hours on Tuesday, 8.3 hours on Wednesday, 8 hours on Thursday, and 5.21 hours on Friday. W
Sholpan [36]

Answer:

35.19

Step-by-step explanation:

6.23+7.45=13.68

13.68+8.3=21.98

21.98+8=29.98

29.98+5.21=35.19

7 0
3 years ago
Read 2 more answers
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