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AysviL [449]
3 years ago
12

Your grandmother gave you $6 with which to buy a present. This covered 3/8 of the cost. How much did the present cost?

Mathematics
1 answer:
Readme [11.4K]3 years ago
3 0
The present cost 16$.
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<img src="https://tex.z-dn.net/?f=23%20%7B2%7D%5E%7B2%7D%20x%20-%204" id="TexFormula1" title="23 {2}^{2} x - 4" alt="23 {2}^{2}
ahrayia [7]

232 {x}^{2}  - 4 \\ x =  \:  \:  \:  \:  \: 0.13 \\ x =  - 0.13
7 0
3 years ago
Sheila bought burgers and fries for her children and some friends. the burgers cost $2.05 each and the fries are $.85 each. she
jeyben [28]
Let's have B stand for burgers, and F stand for fries.
2.05B+0.85F=$19.10  - This equation is set equal to total price.
B+F=14  - This equation is set equal to total number of items.
Subtract the F in the bottom equation.
B=14-F
Put this in place of B in the first equation.
2.05(14-F)+0.85F=19.10
Make sure you distribute the 2.05 properly, over both the 14 and the F.
28.7 - 2.05F+0.85F=19.10
Collect like terms for the F values.
28.7 - 1.2F=19.10
Subtract 28.7 from both sides.
-1.2F=-9.6
Divide by -1.2 on both sides.
F=8
Put this value in place of F in either equation.
B+8=14
B=6
So F=8 and B=6.
4 0
2 years ago
I need help on question 10 ASAP
Mazyrski [523]
The answer your looking for is 2.6.
4 0
3 years ago
The value of y is directly proportional to the value of x.If y=35 when x=140, what is the value of y when x=70
Elodia [21]
Y varies x
Invite the constant
y = kx
Kx/x = y/x
K = y/x
Slot in the values
K = 35/140
= 1/4 or 0.25

What is the value of y when x=70
y=kx
y = 35/140 x 70/1
y = 35/2
y = 17 1/2 or 17.5
3 0
3 years ago
Use the diagram to determine which statement is true
Dahasolnce [82]

The answer is d.

Finding area of ABCD :

  1. Find side length
  • side = √3² + 4²
  • side = 5

    2. Apply formula to find area

  • area = 5²
  • area = 25

Finding area of GHIA :

  • area = 4²
  • area - 16

Finding area of DEFG :

  • area = 3²
  • area = 9

Now, let's see whether is true.

  • Area (ABCD) - Area (GHIA) = Area (DEFG)
  • 25 - 16 = 9
  • 9 = 9

∴ Hence, it is proved √

7 0
1 year ago
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