There's a 1 in 7 chance it will land on G.
Yes, Bobby will have enough money if he saves for 9 weeks. You can find this through either substituting w for 9 in the equation, or solving the equation itself.
Substituting:

Substitute w for 9.

Simplify.

Solve.
255 is greater than 250, so yes, he will have enough money saved.
Solving the equation:

Original Equation

Subtract 30 from both sides.

Divide both sides by 25.
The number of weeks he needs is 8.8. When rounding it up, you get 9.
Answer:
It would\ be -7 F.
Step-by-step explanation:
Answer:
21cm, 12cm
Step-by-step explanation:
width=x cm
length=2x-3 cm
area= 252cm²
l*b= 252 cm²
(2x-3)(x)=252
2x²-3x= 252
this is how I did it
we need to find the nearest square of the number (it should be lesser than the area)
that is 225, whose square root is 15.
since there is a coefficient to the x², the value of x would be calculate like this 15- (2+1)= 15-3 = 12
x= 12
we can verify it too,
2*(12)² - 3*12=252
288-36=252
252=252
therefore width is 12 cm and width is 2*12-3= 24-3= 21 cm
verify;
21*12= 252
252=252
hence the dimensions are 12 am (width) and 21 cm(length).
Answer:
200 is the number of sandals
500 is the number of shoes
Step-by-step explanation:
x is the number of sandals
y is the number of shoes
so 2.5x + 4y = 2500
=> x = (2500 - 4y)/2.5
In the month of April, the numbers of shoes doubles
2.5(2x) + 4y = 3000
5x + 4y = 3000
Substitute x = (2500 - 4y)/2.5
5(2500 - 4y)/2.5 + 4y = 3000
5000 - 8y + 4y = 3000
-4y = - 2000
y = 500
x = (2500 - 4y)/2.5 = (2500 - 4(500))/2.5
x = (2500 - 2000)/2.5
x = 500/2.5 = 200