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Goshia [24]
3 years ago
14

Help Please

Mathematics
1 answer:
deff fn [24]3 years ago
7 0
If adults=a and children=c
\left \{ {{c+a=330} \atop {3c+a=650}} \right.
-c-a=-330
________________
2c=320, c=160, a=170
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Were would coordinates 8,7 be after a feflection over the x axis
Svet_ta [14]

Answer:

(8, -7)

Step-by-step explanation:

well since it flip over the x-axis only, the 8 stays the same, however, the 7 flips completely to the second quadrant and becomes -7.

Hope this helped and have a amazing day.

3 0
3 years ago
David has zero fewer pears than Amy. Amy Has five pears. How many pears does david have?
Mariana [72]
He has ZERO fewer than Amy. That's actually another way of saying that he has the same amount as Amy.

since Amy has 5 pears, David also has 5 pears.
5 0
4 years ago
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Kelly walked 3 miles.Abby walk 3/4 of a mile how far did they walk in all
timofeeve [1]

Answer:

3 3/4

Step-by-step explanation:

Add the two numbers:

3 + 3/4 = 3 3/4

3 3/4 is the amount walked in all.

~

8 0
3 years ago
The height of a trapezoid is 6 in. And its area is 48 in2. One base of the trapezoid is 6 inches longer than the other base. Wha
omeli [17]

Answer:

  • 5 in
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Step-by-step explanation:

Let x represent the length of the shorter base in inches. Then the longer base has length x+6. The area of the trapezoid is given by the formula ...

  A = (1/2)(b1 +b2)h

Filling in the values we know, we have ...

  48 = (1/2)(x +(x+6))(6)

  16 = 2x +6 . . . . . divide by 3

  10 = 2x . . . . . . . . subtract 6

  5 = x . . . . . . . . . . divide by 2

  (x+6) = 11 . . . . . . find the longer base

The lengths of the bases are 5 inches and 11 inches. We found them by solving an equation relating area to base length.

4 0
3 years ago
What 800x21 let go 50 points it easy
Step2247 [10]

Answer:

16800

Step-by-step explanation:

800

*  21

---------

Multiply: 800*1=800

Multiply: 800*2=1600

Add: 16800+800=16800

4 0
3 years ago
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